Omega Owners Forum
Chat Area => Omega Gallery => Topic started by: lozzy on 13 April 2010, 21:19:30
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hi guys well after owning my omega for about 8 months now im finally starting to build my system up in my CD estate
now i know a lot of you will be saying why? well let explain a bit about me im a car audio enthusiast i love music and very passionate about it i do a little bit of mixing here and there.
there are three types of car sound system SQ SQL and SPL
SQ is were you are trying to replicate how the music was produced in the studio and to achieve a flat frequency responce
SQL this is my sort of system it has a little bit of sound quality but thats not the main focus its the L part which stands for Loud :d this sort of system is the ones that have the gut wrenching bass :D
SPL this systems are often modified beyond road use were talking bullet proof glass miles of cables concrete steel are all part of construction the main focus on this sort of system is to score the highest decibel reading possible this is done at the cars peak frequency and generally wouldn't play music
there's a little basics for you
so what do i have in store for this poor omega
well the aim of this car is be able to play most music at an obscene level across a wide range of frequency's and still be drivable.
heres the kit list
Source And signal Processors
Alpine 9887r Full speed ipod Head unit
Audio Control Epic Center Bass Restorer
Auto Leads Bass controler
3 Vibe Delta Box Line Drivers
Speaker Components
4 JBL 4Inch Coaxial - These are going in the A pillars
8 Eminence Alpha Tweeters
20 8Inch Eminence Alpha MidBass Drivers
32 JBL GT4 !0inch Subwoofers
Amplification Front Speakers
8 JBL 75.2 2 channel amplifiers 150wrms x2
2 JBL 75.4 4 channel Amplifiers 150wrms x4
Amplification Bass
4 Sundown Audio 1500AZ Mono Amplifiers around 2000wrms at 13V!
Power Supply
2 Irragi 260a alternators
Brax volt Meter
12v Stepdown for running car electrics and Front amps
adjustable regulator for charging at 16v
7 2V 580ah battery Cell to show 14volt for bass system
heres a few sample pics of the kit :D
Front amps
(http://i25.photobucket.com/albums/c85/lozzycorsa/7bb7a6e1.jpg)
and the subs :D
(http://i25.photobucket.com/albums/c85/lozzycorsa/e4f0a3ae.jpg)
the back of the car has been emptied this week end i shal be removing all the interior and the trims to start building
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Sorry to swear....but bloody hell..........!!!
Should be fab
:y
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thanks penfold this the biggest build i am going to be doing so far :D
this weekend mission is to get the roof built on the wall enclosure
all the subs are going in to a twin diamond enclosure behind the front seats
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Not wanting to swear either - Sholy Hucking Fit!!!!!!!
:o :o :o
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it makes a change to the normal stuff you see in the back of an omega :D
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After a day of listening to that lot mate, we will all have to answer your posts in [size=24]BOLD PRINT CAPITALS[/size] so you can hear any replies ;D ;)
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i can hear you now i think ;D
(http://davidducic.files.wordpress.com/2009/10/ear-trumpet.jpg)
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Good thing you're putting that lot in an Omega mate, it won't fit in anything smaller!
If your car's anything like mine it'll fall apart if you turn it up past 5... ;D
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it was about the biggest estate you can get for my budget the only other contender was a e34 touring the omega has about 20 cuft more room :D
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Best of luck with the build mate, I think we'll all know when it's finished ;D ;D
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thanks :D i will keep this thread as it unfolds up to date
if any one would like the interior its the light grey cloth i will have roof liner and rear benchs and all other trims behind the B piller up for grabs
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jesus il hear you from my house. ( look at my address) ;D
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:o :o :o :o :o :o :o :o :o
what.the.f*&%!
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How the hell are you going to fit them all in :o
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Imagine this be hind the front seats
(http://i25.photobucket.com/albums/c85/lozzycorsa/migtwin.jpg)
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now thats what im talking about!!! spot on mate, if i had the pennies i would love to do something like this... instead i just hav 2 12" subs with a 3kW 4chnl amps (other 2 chnls ready for when i do a minor install)
will have to come see this as im also a big fan of my music and car audio! :y :y :y :y
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what would you use as a power supply....... the national grid. The wife and kids go mad when i turn up ac/dc on my poxy stereo they'd have something to say about the volume yours can achieve
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The batterys are as good as the national grid there from a wind farm :D
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[size=24]Let me know when you need a new windscreen, or ear drums, also i have a full compliment of glass for an estate in stock!!!!!!!![/size]
(http://www.bbc.co.uk/northamptonshire/content/images/2006/02/20/sal_ear_defenders_gallery_0_400x250.jpg)
(http://image.turbomagazine.com/f/8924467/0111tur_07zoom+Lexus_IS300+Interior_Trunk_Subwoofers.jpg)
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jazz played through that lot would be simply [size=24]nice...GREAT....SMASHING !!!!![size=24][/size][/size] :y
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Ahh excellent how many screens you have lol the front on is my main concern withe 2tunnels playing it gonna be like a massive piston of air pushing it
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so here is todays progress tinted the windows with paint today to hide all the bare wood and skeleton of the build
(http://i25.photobucket.com/albums/c85/lozzycorsa/0b3514ea.jpg)
(http://i25.photobucket.com/albums/c85/lozzycorsa/509a18e2.jpg)
all so removed most of the trim today just the tops of the seat bench didnt have any torx sockets doh!
heres when we started
(http://i25.photobucket.com/albums/c85/lozzycorsa/6c4b4d8e.jpg)
surplus trim taking up valuable inches lol
(http://i25.photobucket.com/albums/c85/lozzycorsa/e23cf2c0.jpg)
(http://i25.photobucket.com/albums/c85/lozzycorsa/977834f9.jpg)
almost completely stripped out
(http://i25.photobucket.com/albums/c85/lozzycorsa/7a0e76cb.jpg)
that is all for now the sun is heading down was hoping to start the roof panels today but that will happen next week
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Hi Lozzys, nice i like that can i be the first one to sit in the car to test the sound :y :y :y :y
Kack
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Looks like a possible case of bleeding ears there, Kack!!
SERIOUS SPLs...........
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cheers guys should be fairly loud i hope and on the other side of wild :D
it should be all over the place next year for the shows :D
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Hi Lozzys, nice i like that can i be the first one to sit in the car to test the sound :y :y :y :y
Kack
No need for that ...... you'll probably hear it from your house!! ;D
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Looks like a possible case of bleeding ears there, Kack!!
SERIOUS SPLs...........
Hi it takes a lot to impress as i have sat in my friend's fiesta van with rockford fosgate running three 15's and then mtx gear, and last time i got to experience the jack hammer in the mk3 golf, took the wipers off and horn button out of the steering wheel and lights from the roof, and my hair everywhere, it was very loud so i am looking forward to hearing this in its full glory and ground pounding bass, thanks kack
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Hi Lozzys, nice i like that can i be the first one to sit in the car to test the sound :y :y :y :y
Kack
No need for that ...... you'll probably hear it from your house!! ;D
well i will keeping listening for it but i am a bit deaf from running my previous 8 twelve inch sub's and now running 2 jbl gti 15 inch subs, and soon three 12 inch sub's in the boot to help it along aqs i dont hear it very well, cheers kack
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cheers BB i know these 2 ian with the mark 3 golf and a guy called ice age with the van of rocky stuff a guy called dan brought my amps off me for a red caddy van he had
with this i hope to be wiring up all the kit by November December time
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your mental :D [smiley=thumbup.gif]
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SQL this is my sort of system it has a little bit of sound quality but thats not the main focus its the L part which stands for Loud :d this sort of system is the ones that have the gut wrenching bass :D
Did you see the subwoofer test on Mythbusters?
167dB @ 16Hz
Yup, you did read that right - they stopped the test at that point after the sunroof was blown out of the car (300 Merc).
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oh yes i saw this us bass heads went crazy lol propshaft power speaker lol pretty extreme
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well heres a update from today had ben my friend from autoglass come over and he took the sunroof out and bonded it in to the car so it wont flex and rattle under extreme pressures that it will be put under
(http://i25.photobucket.com/albums/c85/lozzycorsa/d2916f81.jpg)
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Hi all latest update from the weekend we finally start building the enclosure laying the foundations first of is to strengthen the roof we done this with 38x18mm batons bonded to the roof with pu adhesive then compresses with a 3 tonne jack it took couple of hours to cure
(http://i25.photobucket.com/albums/c85/lozzycorsa/122c2c9e.jpg)
(http://i25.photobucket.com/albums/c85/lozzycorsa/da1f8386.jpg)
ps were are the rest of my pics gone
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Another great thread, very interesting indeed 8-) 8-) :y
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B B B B B B B B BASS! how low can you go!
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So here is the latest up date for my build we are half way done the roof the way I have done it is a long process !
(http://i25.photobucket.com/albums/c85/lozzycorsa/c00e217c.jpg)
(http://i25.photobucket.com/albums/c85/lozzycorsa/7c57fc43.jpg)
I also cut the sunroof runners Down so I can build all the way up to it alway were eye protection when grinding I've just washed out of my eye a spec of dust
(http://i25.photobucket.com/albums/c85/lozzycorsa/76dd78e1.jpg)
that's all for now :d
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how much does all the gear weigh! must sap a fair bit of power!
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ive estimated about 500 to 700 kilos at the most im glad i didnt get the 2.0 but really wanted a td
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so heres a little update for you haven't posted in a while been nothing more exciting that putting the batons in the roof and a trip to A=E lol
the roof is hallway done this is the top of the enclosure
(http://i25.photobucket.com/albums/c85/lozzycorsa/beea5aed.jpg)
this is expanding foamed and screwed up in place and left to go off
(http://i25.photobucket.com/albums/c85/lozzycorsa/d3a42619.jpg)
(http://i25.photobucket.com/albums/c85/lozzycorsa/458c5ebf.jpg)
this is held into place with jacks and a porta ram till set
(http://i25.photobucket.com/albums/c85/lozzycorsa/458c5ebf.jpg)
(http://i25.photobucket.com/albums/c85/lozzycorsa/ed4e53ee.jpg)
it was done in 2 sections once the the rest is done it will be fiberglass in to place
the rear quarters are also packed in with foam to eliminate any flex and rattle
(http://i25.photobucket.com/albums/c85/lozzycorsa/700ec53e.jpg)
should have done alot more by the end of this week as i have some time of to crack on :D
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Be careful with the rear right quarter .. the cabin vent outlets are there ... block them up and you'll steam up like crazy in the winter !!
Assuming the vents are in the same place in an Estate as they are in a saloon ....
:)
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Be careful with the rear right quarter .. the cabin vent outlets are there ... block them up and you'll steam up like crazy in the winter !!
Assuming the vents are in the same place in an Estate as they are in a saloon ....
:)
I don't think anyone will survive in there long enough to steam up the windows, to be honest. ;)
Kevin
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Be careful with the rear right quarter .. the cabin vent outlets are there ... block them up and you'll steam up like crazy in the winter !!
Assuming the vents are in the same place in an Estate as they are in a saloon ....
:)
I don't think anyone will survive in there long enough to steam up the windows, to be honest. ;)
Kevin
I was assuming the car might be driven from A to B with the sound system in the O F F position ... as I doubt it could be turned down to "protect your ears" levels !!!
;D ;D ;D ;D ;D
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;D ;D
there is a volume knob it will be a quite setting having it on loud all the time gets to much I like some quite time too :D
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OMFG thats is just oppsing crazy :D
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Why not just invest in a recording studio depending on the budget!!
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i have no room in my house for this one of my dream is to have an industrial unit with my own custom rig when i can sit and listen to it
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Lozzy......
one question.....why do all this to a perfectly good "luxury" car just to enable you to have a stereo that is far too loud to appreciate the finer points of the music you are playing?
No offence, but as a musician in my previous life there is a finite volume you must have to hear all the elements of a piece of music-surely the volume you will eventually get and SPL will obviate the principle of sound enjoyment?
Is it purely "because you can make it that loud" rather than having the best quality sound?
sorry, find the principle hard to understand, please explain.
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i do get this question quite a lot this is mainly for my own enjoyment i have a varied taste in music mostly drum and bass its the bass part that ticks my boxes when listening to music
the omega is the best car up to the job
the car is also usied in the 3 competition formats which are run in the uk
http://www.dbdragracing.com/ and bass race
and proppa droppers
http://www.streetbassers.co.uk/
they record the maximum SPL thats achieved by my cars aim is for a 155DB peak and a average SPL of 150+
heres a few videos its like drag racing but for audio
http://www.youtube.com/watch?v=ZS3UBHfSBNI&feature=related
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WOW!!
considering hearing damage occurs just after 130db, 155 db is KILLING!!!
weird sport, but would like to hear this (from a distance??) and appreciate.
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its a hard one to explain why
damaging your hearing is quite serious we do practice safe sound
a night club will damage your ears quicker than what these cars can do its a different attenuation eg 110db of high frequency's will damage your ears quicker than a 130db of bass
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Funny you should say that.....
whenI play on stage (rock music) I wear in ear monitors, and they act as earplugs to some degree too.
We REGULARLY exceed 100 db, but the audience sometimes tell us they can't hear the vocals at the back of the venue.
The people in the front row MUST be hurting their hearing, surely??
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they could well be the sound is properly being absorbed by the crowd what setup you have ?
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EACH SIDE:
15" with 12" on top (pole inbetween to space) 3x 3" tweeters in top of cab.
IN THE MIDDLE: 2x 18" sub-bass woofers with separate amps
IN THE FRONT: 12" in-fills with 12"" monitors running on separate amps, we use in -ear monitors for vocals only.
All musicians have their own back-line amps, but all go through mixer on line out on rear.
Any good??
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any updates / pics?
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Hi Simon no more updates at moment will have some more this weekend
EACH SIDE:
15" with 12" on top (pole inbetween to space) 3x 3" tweeters in top of cab.
IN THE MIDDLE: 2x 18" sub-bass woofers with separate amps
IN THE FRONT: 12" in-fills with 12"" monitors running on separate amps, we use in -ear monitors for vocals only.
All musicians have their own back-line amps, but all go through mixer on line out on rear.
Any good??
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????
Confused.
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Iphone fail
was thinking about your set up maybe worth investing in some fill depending on venue size to project for people at the back?
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Mmm. suggestions?
Got a good setup size wise for an audience of 200-300, don't do much more than that unless it's a large wedding or nightclub party sort of gig.
Have done a 700+, but hired in a PA from a local supplier to save on the transport costs as on a cruise ship, brilliant sound but over £10k if I had to buy it..........
Any suggestions welcomed.
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i do get this question quite a lot this is mainly for my own enjoyment i have a varied taste in music mostly drum and bass its the bass part that ticks my boxes when listening to music
No Sh*t ! ;D
Did the Live action arena at Max power a few years back... And managed to remove myself from the topless action to have a look at the compitition sound installs....
It's almost nothing to do with quality... Just sheer level - These guys were pushing 150+db ! - Our best G2 touring rig would only get to 146db and that's considered "Awsome" in PA circles...
AND - +3db = double the energy, +10db = double the volume percieved by the ear. so you need a 3000w amp to be twice as loud as an 800w one... :o
There was a chevy van running 45KW !!!!!! and 4 21" PD subs. Cracked windscreens seemed to be an issue !
:o :o ;D :D :D :D :D :o :o
Everyone's at it.......
[media]http://www.youtube.com/watch?v=yxOV82YjoaE[/media]
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Could this be classed as a Fetish?
Something I dont 'get',this need to fill a car with gazillions of speakers--does your other half nag you or something ? ;D
eddie
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gotta see a recording of it when it is done lol
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Been a while since i logged in :)
i suppose you could class it as a festish or a addiction im sure being a drug user would be cheaper !
theres hasnt been any major updates waiting for another delivery of MDF to arrive so i can do the sides :y
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It's a great project Lozzy that I'm following with much interest. 8-) :y :y
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cheers zulu im staggard with the ammount of view this has had
i have all of my amplifiers now so total of 16 and total WRMS of 12,500 ;D
My front speakers have also arrived into the U waiting for payday to come along then that just leaves the batteries to be purchased
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waiting for payday to come along then that just leaves the batteries to be purchased
Lol, wouldn't it be cheaper to put a tow bar on and pull one of these behind you ;-)
(http://common1.csnimages.com/lf/1/hash/1310/266710/1/20+kW+Industrial+Standby+Towable+Generator.jpg)
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hi lozzy this is going to be one epic car!!!!! well done!!!! im a great lover of sound off cars .keep it up and id love to see more pics of the build eg. batteries,wiring etc
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lol simon i do have a tow bar could be an idea but my amps onlike a maximum of 18v
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Well tomorrow my Front speakers should arrive :y this one of the most expensive piece of equipment just shy of 2k but a worthy investment to keep up with my bass
I have 8 of these
(http://i25.photobucket.com/albums/c85/lozzycorsa/SPL_Show_ST25.jpg)
and 12 of these in 8 inch
(http://i25.photobucket.com/albums/c85/lozzycorsa/SV165_small.jpg)
heres what one set can do
http://www.youtube.com/watch?v=DtfaVgwuPuo&feature=related
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Well tomorrow my Front speakers should arrive :y this one of the most expensive piece of equipment just shy of 2k but a worthy investment to keep up with my bass
I have 8 of these
(http://)
heres what one set can do
http://www.youtube.com/watch?v=DtfaVgwuPuo&feature=related
Bloody hell! :o :o
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if that ound was anything to go by via , someones camcorder,then you tube then fair play. :y :y
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that is one amzing build!! what's the total cost of a system like that! my wife wouldn't be having it!, but good onya :y
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What are the compression drivers?
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Hi doog there made by hertz audio
total cost of this to date is around £6000 most of the kit is second hand too if it was all brand new you would be looking 10-12k its crazy money but you only live once and i want to enjoy as much music as possible :y
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Hiya Lozzy!
Any pic updates? Ive been reading your thread with great interest! I once had a Fiesta with 1 x 12" with 200w amp and 2 x 6x9s with 100w amp. Very small compared to yours!! ;D ;D ;D
Ollie
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Wow, that's impressive!
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HI Lozzy been away for a while as i lost the baby but back now and starting to feel a bit better, been getting reaquainted with my bass again as i have missed it so much, those hf units are very impressive and i can understand as i have replaced my tweeters a few times already, we have a young son who has been brought up with both cars and loud music and loves it and helping with set-up and testing, and always demands the stereo turned up when driving up the road, keep up the good work and any new pics of the progress on the install or enclosure assembly cheers Kack
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HI Lozzy been away for a while as i lost the baby but back now and starting to feel a bit better, been getting reaquainted with my bass again as i have missed it so much, those hf units are very impressive and i can understand as i have replaced my tweeters a few times already, we have a young son who has been brought up with both cars and loud music and loves it and helping with set-up and testing, and always demands the stereo turned up when driving up the road, keep up the good work and any new pics of the progress on the install or enclosure assembly cheers Kack
So so sorry to hear of your loss. :'( :'( Glad you are staring to feel better. Love to you and your partner :-* :-* at a truly horrible time.
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HI Lozzy been away for a while as i lost the baby but back now and starting to feel a bit better, been getting reaquainted with my bass again as i have missed it so much, those hf units are very impressive and i can understand as i have replaced my tweeters a few times already, we have a young son who has been brought up with both cars and loud music and loves it and helping with set-up and testing, and always demands the stereo turned up when driving up the road, keep up the good work and any new pics of the progress on the install or enclosure assembly cheers Kack
So so sorry to hear of your loss. :'( :'( Glad you are staring to feel better. Love to you and your partner :-* :-* at a truly horrible time.
Seconded. :( Very sad news. Our thoughts are with you.
Kevin
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Sorry to read that BB,my thoughts are with you at such a sad time
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yea not good at all :( my thoughts are with you
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looks like a very mad system (wish i could do 1) !! :D
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BB our thoughts are with you. :(
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hows the build going any more pics ! :y
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Hello Mr Hatter
this builds gone on a bit of a go slow me and my brother have been doing a bit of banger racing so the Mig had been used as a van for a while
I have now invested into a Sprinter Recovery for racing now so i can start building again
(http://i25.photobucket.com/albums/c85/lozzycorsa/3e1beb77.jpg)
i want to get it build for the later part of this year so i can qualifiy for the world finals
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did this get finished?
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How much money has this guy got?
Looked promising...
Same subs and amps i have haha, only 2 of each
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you are going to need shocks and springs off a monster truck , and a hgv mot when its done as it will be about 5 ton!
but i love it :y :y
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So We have an Update I am still alive lol theres been a slight change no longer 80 speakers but 100 now you have got to stay a head of the game
here we go :
roof is now MDF lined all the way along and bolted to the sunroof for extra strength
(http://i25.photobucket.com/albums/c85/lozzycorsa/1cb03f96.jpg)
Next Up was the supports for the subs there are now 48 subs going in to the car so theses supports will need to take about 400KG in weight so they have to be heavy duty and not move :D
test fit of the supports
(http://i25.photobucket.com/albums/c85/lozzycorsa/27864286.jpg)
i doubled them up to spread the weight a bit more
(http://i25.photobucket.com/albums/c85/lozzycorsa/a242b7a6.jpg)
and the foamed the gaps up and set the floor down
(http://i25.photobucket.com/albums/c85/lozzycorsa/a242b7a6.jpg)
Next i had last week off the 11th so I cracked on with the sides
I used carboard to cut round the archs to get a snug it then transferd it to wood
(http://i25.photobucket.com/albums/c85/lozzycorsa/a242b7a6.jpg)
the completed wooden side
(http://i25.photobucket.com/albums/c85/lozzycorsa/ca480e77.jpg)
then there was 2!
(http://i25.photobucket.com/albums/c85/lozzycorsa/06f431d3.jpg)
next the top part of the enclosure had to be built this part was pretty simple
(http://i25.photobucket.com/albums/c85/lozzycorsa/8ad01e47.jpg)
this what you will see when opening up the door :y nice and snug!
(http://i25.photobucket.com/albums/c85/lozzycorsa/3d94aa9d.jpg)
when you wind down the window this is where some more mids and tweeters will be hidden
(http://i25.photobucket.com/albums/c85/lozzycorsa/db425c16.jpg)
I then had to make the back of the sides this enclosure is huge! the omega is like a tardis
(http://i25.photobucket.com/albums/c85/lozzycorsa/c535c383.jpg)
thats as far as I am at the moment more to come in the next comming weeks :y
the sides are next to be doubled up so they are at least 2 inchs thick :D
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hi guys well after owning my omega for about 8 months now im finally starting to build my system up in my CD estate
now i know a lot of you will be saying why? well let explain a bit about me im a car audio enthusiast i love music and very passionate about it i do a little bit of mixing here and there.
there are three types of car sound system SQ SQL and SPL
SQ is were you are trying to replicate how the music was produced in the studio and to achieve a flat frequency responce
SQL this is my sort of system it has a little bit of sound quality but thats not the main focus its the L part which stands for Loud :d this sort of system is the ones that have the gut wrenching bass :D
SPL this systems are often modified beyond road use were talking bullet proof glass miles of cables concrete steel are all part of construction the main focus on this sort of system is to score the highest decibel reading possible this is done at the cars peak frequency and generally wouldn't play music
there's a little basics for you
so what do i have in store for this poor omega
well the aim of this car is be able to play most music at an obscene level across a wide range of frequency's and still be drivable.
heres the kit list
Source And signal Processors
Alpine 9887r Full speed ipod Head unit
Audio Control Epic Center Bass Restorer
Auto Leads Bass controler
3 Vibe Delta Box Line Drivers
Speaker Components
4 JBL 4Inch Coaxial - These are going in the A pillars
8 Eminence Alpha Tweeters
20 8Inch Eminence Alpha MidBass Drivers
32 JBL GT4 !0inch Subwoofers
Amplification Front Speakers
8 JBL 75.2 2 channel amplifiers 150wrms x2
2 JBL 75.4 4 channel Amplifiers 150wrms x4
Amplification Bass
4 Sundown Audio 1500AZ Mono Amplifiers around 2000wrms at 13V!
Power Supply
2 Irragi 260a alternators
Brax volt Meter
12v Stepdown for running car electrics and Front amps
adjustable regulator for charging at 16v
7 2V 580ah battery Cell to show 14volt for bass system
heres a few sample pics of the kit :D
Front amps
(http://i25.photobucket.com/albums/c85/lozzycorsa/7bb7a6e1.jpg)
and the subs :D
(http://i25.photobucket.com/albums/c85/lozzycorsa/e4f0a3ae.jpg)
the back of the car has been emptied this week end i shal be removing all the interior and the trims to start building
noisey ??
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it should be i am aiming for 155db as a peak
the kit list has grown since then il update it
Source And signal Processors
Alpine 9887r Full speed ipod Head unit
Audio Control Epic Center Bass Restorer
Auto Leads Bass controler
4 Vibe Delta Box Line Drivers
Speaker Components
8 JBL 4Inch Coaxial - These are going in the A pillars
8 Hertz SPL Show Tweeters
14 Hertz SPL Show Mid Range Drivers
Hopefully the same behind the rear windows
48 JBL GT4 10inch Subwoofers
4 JBL GT5 8 inch Coaxials
Amplification Front Speakers
10 JBL 75.2 2 channel amplifiers 150wrms x2
8 JBL 75.4 4 channel Amplifiers 150wrms x4
Amplification Bass
6 Sundown Audio 1500AZ Mono Amplifiers around 2000wrms at 13V!
Power Supply
2 250a alternators
0 AWG Cabling
4 AWG Cabling
8 AWG Cabling
Brax volt Meter
12 V AGM batterie system still to be decided
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Well A little update I have some new Shoes for the omega
irmscher GT Stars 19" wrapped in some 235 35 19 inch goodness
(http://i25.photobucket.com/albums/c85/lozzycorsa/31ad3860.jpg)
(http://i25.photobucket.com/albums/c85/lozzycorsa/42af9c2e.jpg)
(http://i25.photobucket.com/albums/c85/lozzycorsa/87ffccb7.jpg)
(http://i25.photobucket.com/albums/c85/lozzycorsa/e5edbaef.jpg)
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Like the Wheels! Didn't know that Irmscher did 'em! Are they still made?
You 've just sent me some centre caps from your eBay shop, I'd guess.
When do you think you'll be able to bang out some choons?
Nice one!
Matthew
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hi matthew yes that would be me!
these are the GT stars they are a set from a vectra C we do still have a couple of sets left in germany
im aiming for next year forst show season but my time has been very limited at present to get out there and work on the car
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nice set of wheels :y
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Just read this topic and and all i can say is WOW :y :y :y Love the wheels too. That is gonna be one mean ass kickin mig when its finished. Cant wait to see more posts and pics. Well done Lozzy ::) :y
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i have to ask, (although i may regret doing so), have you actually designed the speaker array and enclosure "properly" taking account of the acoustic properties, or is it more of an exercise is seeing how many drivers can be fitted in an omega??
and the 155dB target, how is that measured? at what distance, in which direction? or is it inside the vehicle??, is it A weighted, C weighted, or what?? is it a single measurement , or an average of several??
are there rules governing the source material and signal path?? are you allowed fancy DSP trickery to set up the signal feeds to the amps, ?
what i'm getting at is that there are many ways to maximise efficiency, and achieve specific measured SPL targets, and i'm wondering if you've got them all at your disposal .... because there are also many ways of wasting energy counter productively.....
i don't build stupidly loud in car systems..... but I do build recording studios, and consult for a number of related high end speaker manufacturers..... amongst other things.... :D
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i like being asked questions it works out my knowledge
we have a program which we use called bass box pro this allows us to model the response from the speakers then we can tweak and tune to we have a frequency response curve to our liking my aim would be to achieve a flat response from 20-50hz between 1-3 DB per frequency the enclosure I’m using is a series tuned band pass which in a car environment works very well
there will be a basic sound stage in the car with mid and highs at head height for daily listening but it has been mainly an exercise to cram as many in for sheer output in Bass Mid and High Frequency responces
how the SPL is measured i the competition format i compete in is across a frequency range 20hz 25hz 30hz 40hz and the peak frequency spl this is then averaged
this is measured at the headrest and also at the windscreen with a sensor called a termlab
Source material is set by a disc or USB produced by the competition promoter at a 0DB recording so all is fair and there no boosting of frequencies
I see what you mean about maximising efficiency I’ve had a few setups previously with Massive Voice Coiled drivers in a clit dual 3inch drivers rated at 5000Wrms each which is an insane amount of power to put in to a speaker i fed them with 2000wrms each it did get fairly loud achieved 150db at a peak each time i played it the car got a little louder
(http://i25.photobucket.com/albums/c85/lozzycorsa/IMAGE_093.jpg)
(http://i25.photobucket.com/albums/c85/lozzycorsa/PICT0093.jpg)
But there is a drawback to this ok a clit is small so it did get loud but it wasn’t as efficient as my Audi set up and the play time was alot less around half Hour! when you spend X amount on a system i would like to play as long as i like but the driver would get very hot because as the power supply drops off as the batteries flatten you start to induce clip and square waves
My audi setup this was 10 low power drivers 250wrms rated each and a 1.5inch voice coil the total power for this system was 2400wrms a fraction on my clit this peaked at 149Db 1 Db less than the clit but the advantage with this system was the play time! I could play all day and not have to worry about blowing a £1500 Speaker with there was no heat issue as the power supply was sufficient to power the system, I went to Mudded Nationals show with a local car club I had the car on a switching power supply on a genny and played from 9am till about 6PM I was very surprised that nothing let go!
my Audi System
(http://i25.photobucket.com/albums/c85/lozzycorsa/PICT0602.jpg)
I want the same from this system but on a larger scale and louder scale if im honest i will properly be just as loud with 32 woofers but 48 looks more impressive on the plus side compared to my clit there is 48 coils to share the power and dissipate the heat compared to 4 coils in my clit ;D then you also have cone area which makes achieving the target SPL a little easier I have the equivalent cone area of 15 18 inch subs if i was to do 15 18s i would need a transit van for it to work at its best lol
i think i have gone on a bit lol
but please ask me more questions i could talk about speakers all day
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As could I....
;)
I ask, because you can calculate an awful lot of clever stuff if you know how... and including the acoustic response field of the environment (in this case a car) and it's modal properties, can help you achieve higher measurement numbers through precise placement relationships...
for example, in a simple model, of an average domestic living room, it's common to have modal response variations of the space itself, of as much as ±40dB, at assorted frequencies.... .
this is caused by a phenomenon commonly called (in english, not in geeklish) Standing Waves.
(more properly called modal room response )
these can be calculated quite accurately....
what they effectively do is vary the measured SPL at different frequencies, and different spatial points around the space, by interfering with it , either destructively ( causing a low point, ) or constructively, (causing a high point) ,
it's the reason bass sounds different when you're sat in different seats in a room.... or moving around the room....
careful measurement of the acoustic of the environment to be used (in this case a specific car) , can give a clue as to how best to arrange tthe driver arrays to make most use of this phenomenon, to give pressure maxima at the required measurement points...
THEN there's the issue of inter-driver phase coherence.
if you have an array of drivers spread out over a distance, moving away from you... , say at n+ zero, 1 foot, 2foot, 3 foot,.... and you feed them all a signal at the same moment (either as a simple parallel feed to multiple amplifiers, or parallel load across one amplifier, ) then the spl at the rest point will not be as high and even spread as it could be.....
because the pressure waves from the drivers are arriving spread across time, and so interfering with each other.... , in the stated example, they'd arrive at approximately 1 millisecond intervals....
this spreads transient arrival, reducing the maximum SPL of the transient, as well as causing phase cancellation...
in that instance, the highest SPL reading would be achieved by feeding the furthest driver first, and then inserting a 1 millisecond delay before the next nearest driver, and then a 2 millisecond delay to the next one, and so on....
this way, the pressure wave maxima is constructively added to as it approaches the measurement point.
this technique is commonly used in Large venue PA systems for example, where there are satellite arrays of speakers , say halfway down the length of the hall.... to which the feed is delayed , so that they make their output propagate in sync with the arrival of sound coming from the front of the venue.... thus reinforcing it.... and not making it sound like an echo....
it is however, direction specific.... so, it can be calculated and implemented to make the system measure louder ONLY in one direction....
the point being, such an arrangement would give a higher measured SPL in the front of the vehicle.... ... from drivers arranged in the rear of the vehicle... (but conversely, would somewhat reduce the level and screw with the quality of sound at the rear of the vehicle)
then there's the questions of axial response , and wave interactions between drivers....
but i'll leave those for another time...
here's my latest set of toys.... the room at mix position has a flat frequency response from 18Hz, to 18KHz, and is only 5dB down at 5 Hz and 22KHz.
(http://i122.photobucket.com/albums/o262/MaxV6/studiomonitors.jpg)
(the lower ones are about £13k, the upper ones about £2.7K (with their subs, which you can;t see in the picture) ... so not for the faint hearted..... ;) )
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i bet they sound pretty incredibal in car audio we kill for a responce like that
a standing wave is alway going to be a problem in a car audio install its worst place for a audio refrence point of view im not to hot on calculating standing waves lol thats at the next level
but we do have cabin gain which works in our favour
i know a little more about phase in a mutiple speaker instal our rule of the thumb is no more than 3 speakers deep but 2 is better because of the loading on the speaker in a tunnel the further back you go the more the pressure increases a recent install built last year in an astro the preasure on the back subs turned them inside out! this can be reduced by bringing the port in to the enclosure to even the load out also in regards in output the 3rd row will out put less than the 1st row you can even it out with time alignment and phase switching most higher end mono amps in the car audio world
but thats about as far as my knowledge goes on phase and standing waves something i should learn more about
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Thats one hell of a set up Lozzy but i have to ask. will you be putting proper sounds through it.
For example, what about a bit of AC/DC, Led Zeplin or a bit of Floyd :) :) :)
Good luck with it
Andy
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AC/DC, Led Zeplin or a bit of Floyd
Excellent :y
Still amazed at the condition of this car , no rust ...has it been re sprayed :y
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Thats one hell of a set up Lozzy but i have to ask. will you be putting proper sounds through it.
For example, what about a bit of AC/DC, Led Zeplin or a bit of Floyd :) :) :)
Good luck with it
Andy
Yep, i agree with the music selection... ;D :y
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AC/DC, Led Zeplin or a bit of Floyd
Excellent :y
Still amazed at the condition of this car , no rust ...has it been re sprayed :y
I don't know about that mate, the bottom of the driver's door is looking a bit on the soft side. :(
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bit on the soft side. [
I was looking at the rear arches where most seem to go but these look pretty good :y ;) :y
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One of my favourite phrases of all time - transient intermodulation distortion - WOAH, that feels good!
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bit on the soft side. [
I was looking at the rear arches where most seem to go but these look pretty good :y ;) :y
it loos like in its past life it had taken a fair wack on the passengers side and new 3/4 panel has been fitted by the looks of it and the bonnet and door are a slightly different shade of silver
the drivers door is the only one that has major rust and the arches are all good! :y i looked at load of them before this one come up thankfully it fle through the last MOT with just a corroded brake line flexi to be changed
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OMG !!!! :o :o :o That last earthquake was down to you wasn't it ;D
YOU MUST BE WELL DEAF BY NOW !!! ???
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na it wasnt down to me just yet!
going deaf whats that all about you just turn it up more dont you ? ;D
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hows the build going on this, not updated it in a while now
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it is slow im thinking about handing it over to pro to finnish of what i have started as my time is pretty limited at moment
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:y :y :y bravo , it probably plays pretty well in the omega :P