Are any of these people in the UK ?

Anyone ?

Quote: By the way, some people have reportedly gotten ultra-reference transparency using DSL line drivers - opamps with slew rates in excess of 470V/uS, bandwidth of 350MHz (gain = 10), and settling time of 145nS. Any amps with this on board ? Can u put one in a meta42 ? Is it...

Does a crossfeed circuit affect the quality of the output ?

Quote: No, accurate is when you put in 20-20000 Hz in, you get 20-20000 Hz out, with no rolloff or humps or dips. Transparency is a different thing entirely. It has more to do with having a fast slew rate than anything else. Slew rate is a measure of how fast an amplifier can "swing"...

Hello kelly, Most important thing is accuracy/transparency (they are the same thing, right?). Power is less important.

Could anyone tell me what is the cheapest accurate reference quality headphone amp (single channel). I'm looking for under $200.