Crate GTD15R Guitar Practice Amp with Reverb Frederic A. Strobel or 4 ohms Half power switch Import and backup phrases or 4 ohms Half power switch drops the output to 50W 4 x EL34 power amp tubes 5 x 12AX7 preamp tubes 3 band EQ on each channel Global Presence 2 Master Volume controls Global Master Volume Boost with switch and level control 12 way Punch attack control on Crunch channel Pre gain Boost switch on both channels Built in MSDI microphone simulated direct XLR output Line out with level control Active effects loop with send and return level control Tube bias adjustments on back panel 4 button footswitch included Made in the U and is small enough to travel as carry on luggage with musicians who take their own self contained in ear system with them on the road We have a 5 star rating from 1000+ happy customers across our three locations What you see is what you will get so please check out the pictures