Originally Posted by sacd lover
I still believe discrete designs are MUCH better. I have yet to hear an op amp design that sounds remotely as good as a discrete amp. I have one of those generously hyped op amp portables in my possession right now and the flaws are obvious. Whatever the op amp is in this amp the sound quality is nowhere near as good as the discrete Gilmore Lite ..... thats the same price. The treble is VERY smeared and the whole soundstage is compressed in a little ball in the center of my head. The cymbals sound like they are coming out of the center vocalists back pocket.
This amp is harsh out of a buttery smooth modded cd-25 source into senn 600's or the akg 701's. My ears hurt after an hour. I cant imagine what this would sound like out of a bright and/ or unrefined source.
If I am going solid state ..... for headphone use ..... I want a discrete class A design.
Sorry to disagree one more time on this subject, but I have heard (and in some cases owned) a quite considerable amount of amps, discrete amps, and tube amps, mostly all of them top notch, including the most expensive models of all manufacturers, and even while all of them sound very good, and I even like some of them, I still have an op-amp based amp as my favorite, tweaked or whatever, but still there....
Headroom amps, Corda amps, and Ray amps, are mainly OP-amp based and they sound as good as any competitor, tube or discrete based if not better, not sure what you are talking about or what OP-Amp based amps have you heard, but this is an old myth, that nowadays does not hold a candle in the audio dark tunnel anymore.....
BTW I do not want ot bash anybody's work, but not sure who did this PPA, but mine has no traces at all of the smeared highs you mention above, all the opposite, and I'm using a fairly bright considered headphone, and avery fast OPamp....OTOH in some cases I heard that smear in some tube amps, and in some solid state amps, and I have heard also noise, hums, and other things that bothers me a lot more....