A few months back an friend of mine wanted to restore some Cassette Tapes of his Rock Bands recordings from the 80's, he had already given the tapes to so called Digital Remastering expert who made a complete dogs dinner out of it, the CD's sounded lifeless.
Ive still got some gear kicking around in the cupboard which I dont use any more, so I decided to have a bash from the original Cassettes. A Teac C2 Reference Cassette Deck, fed into a slight boost from DBX subharmonic synthesizer (regenerates the Bass and adds it at one octave below) and then fed to a DBX 3 Band Dynamic Range Expander (splits the Low, Mid and High and independently dynamically expands each section before mixing back together), no changes to the EQ, dumped the result into a DAT Audio and PCM Video Recorder, Job done.
We were both amazed at the quality of the results, zero tape hiss, good heavy clean Bass and very dynamic Mid and Vocals and bright crystal clear top end.
He was well pleased, and all done using active analogue equipment, not a hint of digital trickery anywhere, so theres still life in the older gear today.