Ampeg SVP-BSP/ 2 channel bass pre amp. Circa 1999 Solid state distortion channel is mean and fuzzy, with gate and ultra distorted. Clean side has one tube, ultra and compression modes. It’s a really cool unit, for bass and for studio experiments. I’ve used it with keyboards and all sorts of instruments, the gate is killer. And the ability to blend the channels is amazing. Has a few dents but working really well.

All the tone-shaping capability of the SVT Pro

This tube-driven preamp features 2 channels, each with full equalization that can be switched or combined to create Billy's original dual SVT sound. Each channel has a separate transformer, balanced XLR line outputs, and discrete effects loops. Each also features 3 tone controls with sweepable mids, and ultra low/high boosts. Other features include input pad, pull gain boost, compressor, noise gate, mute function, and tuner out.