TVC Gain effects


A lot of TVCs, like my AudioZone, can produce gain, usually 6dB. The AZ does this with a switch (I think the Bent just engages gain automatically once you're above unity.)

Does anyone know what the effects, if any, on output Z and frequencey response are of engaging gain?

I tend to prefer the unit with the +6dB setting engaged, even at lower volumes.
paulfolbrecht

Showing 3 responses by paulfolbrecht

Thanks! I did find this information on the S&B page as well.

I guess it is better to use a volume setting closer to unity gain (-8 or -12dB usually) with the 6dB switch off then to keep it on with a lower setting.

With a source Zout of around 30 and amp Zin of 100K, you might say I have "impedance differential" to spare, but still..

Some say that they prefer the trannies with the extra gain, which is probably a little strange.
Would that go for any S&B tranny implementation, then? Hard to see why it wouldn't.

Does anyone have any guesses as to what could cause such an improvement with gain? Other than that the induced response variations end up correcting for some other problem in the chain?!
My source is 2V and amps' sens. 1.1V. I'd "thought" that the +6 setting sounded better to me, too, but then I learned that I was wrong on paper. :-}