Godlyke Inc. | 1 decade ago

http://www.maxonfx.com/

The Maxon VOP-9 Vintage Overdrive Pro pedal is the updated version of the Maxon OD820. The VOP-9 takes the same basic circuit as the OD820 and offers it up in Maxon's indestructible, industry-standard 9-Series chassis. It uses the same JRC NJM4558D op-amp for low-noise operation, and features the same negative feedback loop clipping diode as the OD820 and OD-9. Like the '820, the VOP-9 also features mechanical true bypass switching for uncolored sound in bypass and the ability to blend clean and overdriven tones together.

Combination clean booster/overdrive
Switchable 9 or 18 volt operation using internal voltage doubler
Reacts precisely to picking dynamics
True Bypass Switching
Also used by Steve Vai Wing man Dave Weiner