So for the last couple of years my home practice amps has been a Blackstar HT1 Metal and a Marshall DSL20HR through a 112 equipped with a Celestion Greenback G12M. Lovely amps and even on not earth shaking volume I could get some nice tones out of it. However, for late night practicing both are simply to loud. So I bought a second hand THR10X yesterday, at half price, in mint condition to solve all this. I must say, I am very impressed. First of all, it works like a normal amp. Just plug and play. No fussing around with computers or a million different settings. Just plug in, turn it on, and turn the knobs. Game on! the THR10X is born with some awesome metal amps built in. On the Brown I setting (my favorite so far) it very much replicates the gain stages of a Plexi. It cleans up with the SG’s volume just like my old Plexi Marshall, and with the gain setting at about 12-1 o'clock it roars like it too. Just smaller and at whisper volumes. Though the Yamaha get loud enough. While loud, I doubt it would be loud enough to stand up to any decent drummer. However... The thing is - it reacts like a tube amp, plain and simple. The sound of this little green guy is nothing short of amazing. That thing takes pedal very well. If you add a distortion or overdrive pedal to further boost the signal going to the THR10X, you'll get even heavier distortion. However, the clean channel plus a RAT = instant doom. To cut a long story short: The Yamaha THR10X is pretty much pedal to the metal on its five basic amp models, and is quite possibly the most impressive practice amp I have ever played through. I would have better bought it years ago.