SVT-4PRO offers an expansive palette of tonal options. The Frequency control allows you to select the center frequency for the Midrange control, giving you five distinct voicing options for the Midrange. And if that’s not enough, you can use the 9-Band Graphic EQ to fine-tune your sound—or use it to set up a footswitchable “second channel” with a volume boost for your bass solo.

SVT-4PRO is designed for the player who wants SVT tone and performance (with a few modern enhancements) in a convenient, high-powered, rackmount design. With a huge diverse group of artist endorsements, including Tony Levin (Peter Gabriel/King Crimson), Cliff Williams (AC/DC), Pablo Stennett (Ziggy Marley) and far too many others to list here, the SVT-4PRO is a clear favorite among professionals. In the world of high performance bass amps, the Ampeg SVT-4PRO has what it takes to really define your sound.

- 300 watts x 2; 900 watts mono-bridged @ 8 Ohms
- 490 watts x 2; 1,200 watts mono-bridged @ 4 Ohms
- 600 watts x 2 @ 2 ohms
- Defeatable Optocoupler limiters
- 1/4" and Neutrik® speakON® outputs
- Bi-ampable with stereo/bridgeable power amps and variable 24dB/octave crossover
- Onboard compressor with variable ratio (1:1–10:1)
- 9-band graphic EQ
- 39.6 lb (17.9 kg)

Type : Hybrid
Number of Channels : 1
Total Power : RMS: 1600W @ 4 ohms Mono-Bridged, 2 x 900W ; Continuous: 1200W @ 4 ohms Mono-Bridged, 2 x 600W
Compression : Yes
EQ : 3-band (5-position Midrange), 9-band Graphic
Preamp Tubes : 3 x 12AX7
Inputs : 1 x 1/4", 2 x 1/4" (power amp)
Outputs : 3 x speakON, 4 x 1/4" (speaker), 4 x 1/4" (line, preamp), 1 x 1/4" (tuner), 2 x 1/4" (bi-amp), 2 x XLR
Effects Loop : Yes
Footswitch I/O : 2 x 1/4" (effects, graphic EQ/mute)
Footswitch Included : No
Cooling System : Internal Fan, Heatsink, Side/Rear Air Vents
Power Source : Standard IEC AC cable
Height : 5.6"
Width : 19"
Depth : 15.5"