The 7-band EQ on the TNT118 1x18 inch 350W Bass Combo Amp lets you reach any tone you can imagine. 600W RMS @ 2 ohms and 350W RMS @ 4 ohms drive a 18" Blue Marvel speaker and horn-loaded tweeter. Features include an active/passive input select switch, pre- and post-gain controls, and a bright boost switch. Other controls include a contour EQ switch, high and low shelving-type tone controls, 7-band graphic EQ with in/out switch and a footswitch-controlled EQ effects loop. DDT speaker protection circuit with defeat switch. Status LED indicates power on (green) and DT active/clip (red). Low noise, electronically balanced XLR output—pre EQ. Ground lift switch for XLR output. Thermal, over-current, and DC crowbar protection circuits. External speaker and headphone jacks. "pa speaker china"