No, not for acoustic basses but the brand Acoustic. One of my band members had an old amp sitting in a closet so me being nosey and all, I had to check it out. It turns out (after some web research) that it is an Acoustic 150 series head from 1971! It has a whopping 110 watts rms. From what I found it is the g**tar version since it has reverb and tremolo built in. Also from what I read the guitar and bass versions were the same except for the effects. My curiosity was peaked so I had to hook it up to my TE 215 and see what it could do. I must say that other than a scratchy pot this amp had some serious tone and power! It has a full tone that isn't sterile at all. Its loud enough I could use it for practice and maybe even a gig. I admit I was very impressed with this early version of SS amplification. I can see why Jaco, The Doors, Chuck Berry and others had used Acoustic amps. I just thought I would share my enlightenment to the understanding of why some really treasure an Acoustic amp.