Originally Posted by kiteki
Have you tried any other discretes than from Audio-gd? I know qusp mentioned that the AD797 inventor is releasing a DIY discrete.
Yes, when I said that Sun is my favorite, I did mean to imply that I tried Earth and Moon as well. These three plus OPA2134 and LME49710 were the first opamps that I ever rolled. Earth was my favorite... but then I tried ADA4627-1B and never looked back... and then I began to rediscover my opamp collection with extra psu bypassing, so that is when I revisited the Audio-gd opamps. I ultimately sold Earth and Moon and kept Sun.
No matter what I did to Moon, I never liked its weird sound. Versus OPA2134, LME49710, and a few LT and other TI chips, I liked Earth a little better as it sounded more "right". 4627, 797, OPA827, and several other TI and Intersil chips all make Earth sound muddy, overly colored, and unnatural by comparison. But I compared the latter bunch versus Earth with all of them having extra psu bypassing. It seems to me that without the extra bypass caps, Earth may smoke those others in sound depending on the circuit. Well, many of those chips aren't great candidates for blind rolling anyway. =p
Sun can seem to have a strangely roller-coaster-like FR without upgraded psu bypass caps, really bizarre.
Oh, then there's the matter of the A-gd opamps having fatiguing treble when they are new and not burnt in. =/