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[Marks DTM Calib]

I just built my own....based around a good opamp biased to work in class A mode with a quasi complimentary transistor output.

Works quite well

if I understand that I'm alien..

someone translate please :-/

Simples.

I use a good opamp to work as the driver for the pwoer stage.

This opamp has the output loaded such that it is forced to work as a class A amp (the optimum amp design).

The output of this then drives 2 transistors of the same type (both N-Type) arranged as a quasi complimentary pair.

This give the drive to run the headphones.

[cem_devecioglu]

I just built my own....based around a good opamp biased to work in class A mode with a quasi complimentary transistor output.

Works quite well

if I understand that I'm alien..

someone translate please :-/

Simples.

I use a good opamp to work as the driver for the pwoer stage.

This opamp has the output loaded such that it is forced to work as a class A amp (the optimum amp design).

The output of this then drives 2 transistors of the same type (both N-Type) arranged as a quasi complimentary pair.

This give the drive to run the headphones.

  Thanks Mr DTM

[Mr Skrunts]

I just built my own....based around a good opamp biased to work in class A mode with a quasi complimentary transistor output.

Works quite well

if I understand that I'm alien..

someone translate please :-/

Simples.

I use a good opamp to work as the driver for the pwoer stage.

This opamp has the output loaded such that it is forced to work as a class A amp (the optimum amp design).

The output of this then drives 2 transistors of the same type (both N-Type) arranged as a quasi complimentary pair.

This give the drive to run the headphones.

  Thanks Mr DTM

Now tell the truth cem, you are still non the wiser.

[Kevin Wood]

Is there anyone on here that can recommend a decent headphone amp. 
Im getting pissed off with all my devices being unable to drive my headphones properly.

Doug

A bit more info. about what you need would be good. What devices are you using as a source, and what headphones? Do you need something portable that you can take jogging with your Ipod or something mains powered for listening at home?

What are the problems you are currently having? Just poor volume level?

Stand alone headphone amplifiers are a great idea if you spend a bit of time listening with headphones as, at the low power levels involved, you can make a much less compromised amplifier than if you also require it to drive speakers, where a class A amplifier of any useful power level will double as an effective room heater and wallet emptier!

Kevin

[cem_devecioglu]

I just built my own....based around a good opamp biased to work in class A mode with a quasi complimentary transistor output.

Works quite well

if I understand that I'm alien..

someone translate please :-/

Simples.

I use a good opamp to work as the driver for the pwoer stage.

This opamp has the output loaded such that it is forced to work as a class A amp (the optimum amp design).

The output of this then drives 2 transistors of the same type (both N-Type) arranged as a quasi complimentary pair.

This give the drive to run the headphones.

  Thanks Mr DTM

Now tell the truth cem, you are still non the wiser.