Ampeg GVT Circuit - Anything Special?

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vipor3D
Posts: 80
Joined: Wed Jan 05, 2022 4:48 pm

Ampeg GVT Circuit - Anything Special?

Post by vipor3D »

Recently I've been intrigued by the early 2010s Ampeg GVT amps from a lot of videos I've stumbled across as well as reviews. It seems to have a full sound and wide range of tones probably coming from the Baxandall EQ. Several people say it has a unique sound, but is there anything special/unique about this circuit? I've built a few kits and projects, but circuit analysis is a bit beyond my skill level. Hoping someone here more experienced can chime in. Ultimately my curiosity stems from the thought of cloning the amp or making a pre-amp style pedal from the circuit. But wondering if it's different/unique enough to be worth the effort?
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nworbetan
Posts: 162
Joined: Sat Jul 15, 2017 11:34 pm

Re: Ampeg GVT Circuit - Anything Special?

Post by nworbetan »

The first tone control section looks at least a little bit interesting. The parallel fixed mid boost and scoop sections with a blend pot isn't something I remember seeing anywhere before. Most of the design is pretty plain though. There's no negative feedback in the power section, which isn't unique but maybe worth making a note of?
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