Originally Posted by Tuned
Getting back on point, I maintain that most of the signature Ampeg tone comes from the SVT preamp,
That is absolutely true. I have an SVT II non-pro, and if I use a different preamp and bypass the Ampeg pre, it sounds like a much cleaner, clearer tube amp. The grind of Ampeg is in the pre. Surprised me when I found this, but thats how it is. It's really great actually, because SVT II amps can be used as a slave and take on the personality of what is fed into it.