Equipped with a 3-band EQ and an on-board compressor, the Ampeg SVT-4Pro is an amplifier designed for bass guitar and capable of handling 1200W RMS at 8 ohms, or 1600W RMS at 4 ohms. The unit has a tube-driven preamp, a solid-state power section, and 9-band graphic EQ. Stereo/bi-amp capabilities are also features of the SVT-4Pro.

Turn your attention to the back of this amplifier and you'll see a plethora of ins and outs: two speakON jacks for stereo/bi-amp mode, one speakON for mono bridge mode, and a multitude of 1/4" jacks for effects loops, power amp inputs, preamp outputs, footswitches, speaker outputs, and high/low bi-amp outputs. Additionally, two transformer-balanced XLR line outputs allow you to port wet and dry signal to a PA or mixer—though a flick of a switch turns wet/dry into true stereo. There are also 1/4" balanced/unbalanced outputs available for this express purpose. A small pad next to the speaker output section provides you a few sonic options: bridged mono mode, true stereo mode, and bi-amp mode, in which the highs and lows of your sound are ported into separate cabinets as governed by the amplifier's adjustable crossover and frequency-balance controls.

Lastly, a circuit breaker protects against faulty power situations.