Just checked my bass, and I gotta readjust my 50% bass boost claim.
Didn't realize it went quite that far around. It's more like 25-30%.
And about the VTC...counterclockwise is the way you turn the VTC to roll off the highs, so fully clockwise is "off". That's where it almost always stays for me. Could easily live without it altogether, but nice to have it just in case.
That makes a bit more sense. I can't imagine using more than 25% bass boost on that pre in any situation.
As most, I run my Sadowsky pre with just a touch of bass boost (10 to 20%), and use the VTC on occasion to roll off the very top of the high end (for example, if I'm doing a more 'straight ahead' gig, or playing out of a particularly articulate rig.
Even though I love a bright, somewhat sizzly tone, I've never used the treble boost, since these basses have SO much going on up top.
In the zillions of posts I've read on VTC use (or not), it seems to me there is a high correlation between use and type of amplification. Those with, for example, more vintage rigs (tube amps and cabs with no tweeters), or even rigs that tend to mimic that tone (Aguilar, some of the Mesa hybrids) do not seem to value the VTC. This is because, IMO, their rigs don't particularly have a pronounced top end. Those of us who use more transparent, full range rigs that have the capability of a lot of high end zing tend to appreciate the VTC in some situations in small amounts to 'soften' the lower treble attack and upper treble zing.
Without string and rig context, the VTC question is rather meaningless IMO.

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