AMPEG SVT-IV PRO/SVT-4PRO Description
- 1600W @ 4 ohms mono (1200W @ 8 ohms mono, 2 X 900W @ 2 ohms stereo, 2 X 625W @ 4 ohms stereo, or 2 X 350W @ 9 ohms stereo), two-space rack-mount bass head-unit, hybrid chassis, preamp: 3 X 12AX7, power: tube driven MOSFET, single channel, front black control panel (1997-99) or black and gray control panel (1999-present), ten black knobs (g, compression, b, m, five-position mid-range freq. selector, t, line out level, MV, crossover freq., crossover balance), nine-band graphic EQ with level slider control, mute switch, input pad switch, ultra high switch, ultra low switch, bright switch, graphic EQ on/off switch, effects bypass switch, limit defeat switch, power switch, rear panel: convenience outlet, bi-amp high and low outputs, two XLR balanced line outs and two unbalanced 1/4 in. line outs (one per channel each) with stereo/mono and pre/post EQ switches, effects loop with two returns (one per channel), tuner out, four 1/4 in. speaker jacks, and two sets of red/black speaker connectors, stereo/mono power amp switch, two power amp inputs and two preamp outputs (one per channel each), two footswitch jacks, black casing, 19 in. wide, 3.5 in. tall, 15.5 in. deep, 42 lbs., mfg. 1997-present.
While this has essentially been the same model since it was introduced in 1997, the badging on the front changed from SVT-IV Pro to SVT-4 Pro in circa 1999.