Thank
Thanks for your explanation and sorry for the delay to answer (poor internet connection at home so only connect "on the go"whenever I find better connection :i will share with you(know it will ring a bell to most readers even though it looks out of scope) a most recent experience with 2 HP amps, one is my cherished Lehmann Audio black cube Pro(xlr inputs) which has a very neutral sound signature (but on the warm side) and a Beyer A20,bought from amazon and returned, which has a very mids centered sound sig.I have tried them with very different HPs because I wanted to be sure I was not misled by the sound sigs of the HPs themselves. Now I know what you mean by intimate sound stage and upfront mids, because it is EXACTLY how I would describe the Beyer amp:very detail retrieval but at the time UNFORGIVING of poor recordings,but shrills inducing in the best case scenario whereas the Lehmann has a wider soundstage, more separation power(pouvoir séparateur as we say in France) (just another way of saying "imaging" )and a warmer, more cohesive overall sound signature. To say it shortly :the Beyer will be more satisfying with only a few recordings or mid centered style of music("piano" or vocals based, some classical-not Opera- and jazz music) whereas the Lehmann will be so to all the rest kinds of music. If I got you well the Lehmann is a clone (HPamp speaking) of the Amiron and the Beyer a clone of the DT1990,am I unright?Soundstage is something not always perceived the same by people. I've always found the HD 650s soundstage larger than the HD 600's for example, and people vary on that as you may see contradictory opinions on it. But I'll explain one common way to create the illusion of a wider soundstage is a bit of an upper midrange recession, this is a trick the HD 800 pulls to even further expand the soundstage size. A forward midrange tends to make a headphone sound more intimate and less spacious. As to why the Amiron has a softer treble, after spending more time with them longer, it's because there is just no ringing in its treble whereas the DT 1990 has a small amount ringing in its treble that and the Amiron doesnt really have a spike in the treble but rather a peak which I don't find as extreme, it takes the treble mountain the T90 has and tames it. The Amiron is more v-shaped in its sound while the DT 1990 is more neutral(with a bit of brightness and more warmth than most Tesla Beyers). The Amiron is a lot warmer sounding than the old DT 990 which is a bit cold, while both may be v-shaped, it's a different curve and creates a very different presentation not to meniton how different Teslas inherently sound than the DT Beyers.
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