[sdiy] The sound of various Op-Amps

[Scott Juskiw]

I've found the OP275 chips to be quite nice in audio paths. I default 
to using TL-072 when breadboarding but then I'll pop in an OP275 to 
see if it makes a difference. In high gain circuits, the OP275 sounds 
much more transparent than a TL-072. It's hard to describe, but the 
OP275 seems to have a crisper output, with more "air" than a TL-072.

At 8:51 PM -0400 2003/09/18, Michael Boracci wrote:
>Dear fellow Synthesists,
>     Since joining this list recently, I have viewed some really great web
>pages which are maintained by some really excellent engineers and synth
>builders. I have noticed that a lot of modules and general audio circuits
>are designed around the TL-08X series of Op-Amps, of which I am quite fond.
>I am aware that there are better op amps available in terms of slew rate,
>CMRR, THD, etc., however is there anything that can be said for the "color"
>or "sound" of the many Op-Amps that we have at our disposal?  I have used
>either the TL-08x series, or some of the newer Analog devices stuff for my
>builds and they seem to sound great. I would hate to get like those
>audiophiles with their "incredible air and warmth of my new pure solid
>silver banana jacks", but it would be nice to know which Op-Amps are
>regarded as "sounding good" at least for the purposes of creating music.
>Perhaps functionality under given design criteria is the primary concern and
>the sound color is secondary. Any advice would be appreciated as I am
>embarking on a modular build up and I would like to start out on the good
>foot.
>
>Thanks,
>Michael