[sdiy] Any noise avantage to parallel 2164 VCAs?

[Mattias Rickardsson]

Definitely, use them in parallel. The VCAs are easily the noisiest
bottlenecks of your circuits and using two in parallel should lower it
around 3 dB.

I don't see how it wouldn't be worth the circuitry - what is it, an
additional C and two additional R?

Also, make sure to use the new improved SSI2164 for even better SNR and/or
THD potential.

/mr

On Sun, 17 Jun 2018 at 13:49, Tom Wiltshire <tom at electricdruid.net> wrote:

> Hi all,
>
> A quick query, if I may: Is there any noise advantage to using two 2164
> VCAs in parallel?
>
> I’ve got a circuit that uses two VCAs, so there are two others spare on
> the chip. And then it occurred to me that there might be a minor gain by
> using them in parallel pairs. It’s a case of “well, they’re there so we
> might as well use them” if there’s no reason not to.
>  Or would it be better to simply disable the unused sections?
>
> Thanks,
> Tom
>
> ==================
>        Electric Druid
> Synth & Stompbox DIY
> ==================
>
>
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