gt-5 is a single end class a tube guitar amplifier, it is only 5w with one 6.5 inches speaker. this guitar amplifier makes small-room sessions lots of fun! higher-gain preamp circuit has been added to take the overdrive tone beyond that of the original, and a choice of high- or low-gain inputs included. with a switch able pentode/triode, you get the only amp in its class to deliver true tonal range from instantaneous punch to deliciously greasy overdrive and with precise control over output volume. single end class a pentode/triode sw(3/5 w) embedded attenuator for bedroom practice(l-pad) color: black and tweed coving(selectable) oem and odm welcome, kits are provided. please use kldguitar in google and contact with us so we can reply you in time.