20Input Sensitivity 100 k Ohms, 20 mvPreamp Tubes 3 x 12AX7Rated Output Power 1000 Watts Mono-Bridged @ 4 Ohms750 Watts Mono-Bridged @ 8 Ohms2 x 500 Watts @ 2 Ohms2 x 350 Watts @ 4 Ohms2 x 200 Watts @ 8 OhmsTotal Harmonic Distortion less than 0.5%Signal to Noise Ratio approx. 78 dBEqualizerPassive Tone Controls Bass, MID, and TREBLEGraphic EQ ±12 dB, center detent@ 30 Hz, 64 Hz, 125 Hz, 250 Hz, 500 Hz, 1 kHz,2 kHz, 3 kHz, 5 kHz, 8 kHzGraphic EQ Level ±12 dB, center detentBRIGHT Switch +6 dB @ 2kHzBASS Switch +2.5 dB @ 50HzCOMPRESSION RATIO 10:1FOOTSWITCH Jacks MUTE+OVERDRIVE: Tip = Mute, Ring = EQEQ+EFX: Tip = EQ, Ring = EFXSend Output Level 0 dBmReturn Input Level 0 dBmDimensions 19” x 18” x 5.25”482 mm x 460 mm x 132 mmWeight 40 lbs18 kgsSpecifications