So.... you had the Herbert... you sold it... and you dont even know what the +/- is ??? !!!
Wooahh, that is really hard to believe man !!! ... it's one of the greatest thing of the Herbert... with the MidCut...
I use the channel 2 + mode with M.C. for my beast rythym tones (for Melodic Death metal, so the power it's a must), and the channel 3 for leads... Channel 2 - is also AMAZING, but sadly I can control it with a midi pedalboard, so I dont use to use it to much, (I should be next to the head amp, and switch it on Stage by hand, which would be something really SAD, so I simply pass on that... at least on live).
But yeahh, it's AMAZING, you have all the tones in the world with this amp...
If you allow me to ask, I think you sold it too soon (not saying the VH4 is worst, or better), but really think that...

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sean106ESP":3k532hs5 said:
Jaymz82":3k532hs5 said:
Thats the little switch for Channel 2 for more (+) or less (-) gain.
So does it make a dramatic difference in the gain of the channel? I don't have it, as I sold it, but the buyer is asking.