MOOER EFFECTS " LITTLE MONSTER AC"ALL TUBE 5W COMPACT AMP HEAD NEW! All-tube guitar amplifier head. Preamp Tube: 1 x 12AX7,Power Tube: 1 x EL84 Tonal response inspired by the VOX AC30* Full metal construction. Normal/Top Boost channel select,Thin/Mellow tone control,Gain and Volume controls.