Classic Analog Bass Preamp : Simple solution to and expensive problem.

It does exactly what you hope it would do. It sounds almost like an Ampeg. Of course they wouldn't put a full SVT inside a stompbox and sell it at a fraction of the price but it's certainly close enough to get a decent stage sound. All the controls work well to dial in the desired tone, the ultra hi/lo switches are a nice touch too. There is a little background hum when the pedal is on but that's easily covered with a noise gate and it can't be heard while playing.

As always you get what you pay for, if you want a true authentic Ampeg sound then go get an Ampeg amp, but if you're happy to settle for something close for significantly less cost this is your solution.