I play my 5150 at bedroom volumes. It sounds great! It does sound a little fuzzy at lower volumes, not in a bad way, it cleans up once you crank it passed 3. I've run my Digitech RP 1000 just for the Chorus, Delay, Reverb & Noise Gate. It didn't have any adverse effect on the tone. I've also used individual pedals, MXR Stereo Chorus, MXR Phaser, MXR Flanger & Boss Noise Gate. Both set ups sound good. The 5150 amps do produce a lot of hiss so you will really want some type of noise gate to reduce the high gain tube hiss. Bottom line you will enjoy this amp! Goes great with with EVH/Axis pickups.
Ben
Ben