[sdiy] Audio quality switch chips??

Ingo Debus igg.debus at t-online.de
Thu Sep 25 16:52:14 CEST 2014


Am 24.09.2014 um 23:29 schrieb Dan Snazelle:

> I've tried the 4053 (from plus and minus 7.5 v supplies) and was quite unimpressed with the end result. 
> 
> Even with attenuation it had a noticeable impact on the sound quality

What is the input impedance of the circuitry that follows the switch? Perhaps it is too low and the switch and the input impedance form a voltage divider. You could try and insert a high input impedance buffer.
OTOH, you might get leakage through an open switch then.

Ingo


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