Interesting question about Vision SLR Preamp & SET 500 combo

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DecibleDude

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 Interesting to me at least. Anyway, as most of us know there's a button on the Vision designed to raise or lower the gain to make the preamp more flexible with different amps, and speaker efficiencies. I've always assumed the correct default setting in my situation would be with the button not depressed, or off in other words, because both units are AVA and presumably designed to work together. I find both settings fine, but the other day just out of curiosity I inquired of Google & Brave AI's which setting was best to use in my situation. Both said to use the button on or depressed because it gives more usable space on the volume turn , a better volume balance between channels, lower noise floor, and less strain on the components. If true, that's a lot. So my question is for AVA or anyone who knows, is this true?   

SJ David

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Re: Interesting question about Vision SLR Preamp & SET 500 combo
« Reply #1 on: Yesterday at 01:51 pm »
The reasons for using the lower gain level setting would make sense to me IF conditioned upon a situation where higher sensitivity speakers are used. Though I really don't know what is meant by claiming "less strain" on components.

jedgar

Re: Interesting question about Vision SLR Preamp & SET 500 combo
« Reply #2 on: Yesterday at 10:57 pm »
My Tannoy DC4000 speakers are quite sensitive and when I play CDs I activate the low gain.  When in high gain mode it gets too loud when volume control reaches much past the "9 o'clock" position.

When I use a bluetooth receiver, I go back to high gain selection as in high gain the v.c. goes to "11 o'clock" for normal listening.

When playing LPs, I generally select high gain and v.c. is usually around "10 o'clock" for normal playback.

My uninformed thinking is that the v.c. is a mechanism that "dials back" the signal and that this imposes something between source and ears that I should try to minimize.

In an earlier post I asked if it is possible to more finely tune (e.g. reduce the effects of) the remote control that came with the Transcendence 10 SLR preamp as I'd often like to dial in the volume more minutely.  The answer from Mithat was "nope." 

Oh well, its good to get the bones up and moving when I want Baba O'Reilly, or So What or Smells Like Teen Spirit or The Messiah just a little bit louder or quieter.

Tone Depth

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You can adjust the effective sensitivity of the Vision SLR preamp volume control by changing the signal voltage level it receives. One way to do this is by pressing in the mute button on your preamp to decrease the in-coming signal level by attenuating the voltage. I did this all of the time with my Insight+ analog preamp.

If you had a noisy preamp, turning its volume control way up would increase the background noise in the signal sent to your power amp. In that case, you'd turn off the mute circuit and adjust down the volume control, for a lower background noise in the signal sent to the power amp.