This 600W combo amplifier features our precise, musical 7-Band preamp with a 15" specially designed Celestion® loudspeaker and a high frequency horn. The cabinet is tuned to 42Hz and features an unobstructed bottom slot for great tight bass response, and the horn has a switch for Off, Lo and Hi for control of the high audio frequencies. The extra speaker output can be connected to an extension cabinet for even more volume stage presence. 7-Band range offers four footswitchable features: Pre Shape for that classic Trace Elliot sound; 7-band classic Trace Elliot Graphic Equalizer; Compressor with self-adjusting, program-dependent Attack/Release times; and Output Mute that mutes all outputs except Tuner Out. Other features included are a series effects loop, an electronically balanced XLR DI output, and a selectable pre/post preamp.