[sdiy] best opamps for line level to synth level preamps

Ken Stone sasami at hotkey.net.au
Sun Jul 24 23:55:21 CEST 2005


>I rather suspect you just destroyed another audiophile myth. ;-)
>I bet many of those who claim "this opamp sounds better" never did a 
>direct A/B comparison like you describe.

I have one comparison case that did apparently make a difference. The MC3403
sounded better in a phaser than the TL074. I guess it is a circuit
configuration issue. The design originally used the 4136 (excuse me if I got
that wrong), and the 3403 was listed as a more compatible replacement.

By and large, a lot of op-amps can be swapped with no comparable difference,
UNLESS the circuit exploits a particular "feature" of the op-amp originally
chosen. 

Ken
_______________________________________________________________________
Ken Stone   sasami at hotkey.net.au or sasami at cgs.synth.net
Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>




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