The Ultimate Bass Amp Head
Honestly, the Ampeg SVT-4PRO Bass Amplifier is probably the last bass head you'll ever need. If you're a gear freak, by all means feel free to buy a few more -- but this Ampeg really does deliver some of the greatest power, tone, and flexibility you can get.
Impressive Tube Complement
The Ampeg SVT-4PRO wants to impress you. So it starts with 3 x 12AX7 tubes in the preamp to generate a rich and powerful tone right from the get-go. Then, your sound grows in amplitude through the power of the MOSFET amplifier inside.
Tuner Output, and Other Thoughtful Details
The input section offers a single 1/4-inch input with a Tuner Output right beside it for quick and handy tuning on-the-fly. There is also a handy Mute switch right on the front, so you can change instruments without subjecting everyone's ears to the ol' pop and hum.
Astonishing EQ and Tone Control
Ampeg has outfitted this bad boy with a Control section, a remarkable 9-band graphic EQ for fine-tuning your tone. An additional 3-band frequency adjustment has a separate 5-position frequency target knob for the Midrange, giving you 5 times as much control over this critical dimension of your sound! There are also Gain and Compression knobs, and a Control for the Crossover point -- so you can put the SVT-4PRO's dual power amps to work, sending high and low frequency ranges to two separate cabs.
Enough I/O to Make Your Head Spin
The SVT-4PRO's rear panel offers one of the most sophisticated I/O sections on any bass amp available today. It starts with 3 x 1/4-inch input FX Loop, allowing you to run your loop in Stereo or Mono modes. There is a second Tuner Out on the rear. The Transformer Balanced Line Out section has both dedicated XLR and 1/4-inch outputs for Stereo or Mono use, along with a switch to bypass the onboard EQ when you want.
The SVT-4PRO's Speaker Output section includes 2 x Neutrik SpeakOn locking connectors for excellent conductivity. There is also a Mono Bridge Bi-Amp output, along with 4 x 1/4-inch outputs running at a 4 ohm optimal impedance. Power amps A and B, delivering 490 watts apiece, each have independent 1/4-inch inputs and outputs. When's the last time you saw such ridiculously comprehensive I/O on a bass amp?
Excellent Construction Throughout
On top of it all, the Ampeg SVT-4PRO is built for serious endurance. It incorporates super-high-quality components, including quiet variable-speed fans to keep it running cool. The front panels are cut from 1/8-inch thick aluminum, to look cool and withstand use and abuse -- whether you're using your SVT-4PRO a rack or as a standalone unit.
Check out our overview of the Ampeg SVT-4PRO Bass Amplifier Head:
- 3 x 12AX7 preamp tubes
- Stereo or Mono FX Loop
- 9-band graphic EQ
- 2 x Neutrik Speak-On connectors
- 4 x 1/4-inch 4 ohm outputs
- Input Peak LED
- -15 dB pad
- Variable 0 - 7:1 compressor
- Bright switch
- Defeatable Optocoupler limiters
- Internal 24 dB/Octave crossover
- High/Low balance control
- Tuner Output
- Mute Switch
- 1/4-inch Biamp High and Low Outputs
- AC convenience outlet
- 15-amp circuit breaker
Forget those other bass heads -- commit yourself to great tone forever with an Ampeg SVT-4PRO.
zZounds is an authorized dealer of Ampeg products.
- Dimensions: 19 x 5.25 x 15.5 in.
- Weight: 42 lbs.
- Balanced Line Out: Yes x 2 (Transformer)
- Driver Tubes
- Effects Loop: Yes x 2
- Graphic EQ: 9-band
- Mid Tone Control: 5 pos
- Power Amp (Tube or MOSFET): MF
- Preamp (Tube or Solid State): T (3 x 12AX7)
- RMS Power Output (2 ohms): 600 x 2
- RMS Power Output (4 ohms): 490 x 2/1200
- RMS Power Output (8 ohms): 300 x 2/900
- Tone Controls: 3-band
- Ultra Low/High Boosts: Yes
- Weight, Dimensions, and Manufacturer Part Numbers
Manufacturer Part Number (MPN):