I just bought myself the 15 watt version since i will be using it primarily in a small room and with headphones but i loved the sound. I went shopping for amps and i ended up getting this one. In my opinion its a great amp in that price range. I'm not sure what u need it for but 120 would be really loud, my 15 alone is loud. But i suggest going and trying it out and seeing if it fits you but i'd approve.