This is not a expensive bass guitar preamp if you take into consideration that it comes loaded with a distortion channel, witch you can place pre or post preamp eq, compressor on the way in and also a gate, DI output etc. That being said, the sound that comes of of this thing is decent, you can really crank up the distortion. But the build quality is very poor. After owning this pedal for 4 years I have to send in to repair, it has gone completely crazy. All the switches are acting up, the led indicator lights are on the entire time, the sound is just horrible and useless, just noise and buzzing. And I have to state, that I have used this pedal for rehearsal right after I bought it all together for maybe 20-30 hours and it was stored in its original box ever since for almost three years, dry room, not some moldy damp cellar room or anything like that. After taking it out and plugging in the bass couple of days ago it is ready to visit the repair shop and I am not sure that they will be able to fix it. Right from the start when I bought it, the two switches were acting up, not turning the distortion channel on or off, but it didn't bother me much back then. Now I know that it was just a signal of things turning south for this pedal and sadly I did not send it back to thomann to get a replacement or have it fixed while it was still under warranty. I own other EHX pedals like reverbs, delays and mod pedal, all working just fine..