The Marshall AVT20 20W 1x10 2-Channel Combo Amp with Reverb is amazingly loud for its small size. Ideal for for use in the home studio and dressing room, for backstage warmups and low-level rehearsals. The tube-based quality of its clean and overdrive modes will redefine your expectations of a low-powered, compact combo. It also features a CD input, speaker-emulated DI output, and a headphone jack that mutes the speaker. Like all the AVTs, its preamp section is based on a 12AX7 and delivers great tone. 10" speaker. 20W.