Ampeg SVT-4 Pro
Bass Amp Head Ampeg SVT-4 ProBass Amp Head Ampeg SVT-4 Pro (2)

Ampeg SVT-4 Pro

(5 Ratings)
  • Technology: Hybrid
  • Power to 2 ohms: 2 x 600 W
  • Power at 4 ohms: 2 x 490 W, 1200 W bridged mode
  • Power at 8 ohms: 2 x 300 W, 900 W bridged
  • Power Range: 501 - 1000 W
  • Channels: 1
  • Bi - Amping: Possible
  • EQ: Bass/mids/treble
  • Graphic - EQ: 9-Band
  • Connections: ¼" Jack & Speakon
  • Inserts: Parallel
  • Pre Amp Valves: 4x 12AX7, 1x 12AU7
  • Impedance: 2/4/8 ohms
  • Enclosure: 19", 4U
  • Dimensions W/H/D: 48,3 x 3U x 39,4 (cm)
  • Weight: 18,2 kg
  • Country of Origin: Made in China
  • Special Features: Compressor

Ampeg SVT-4 Pro · Bass Amp Head

Ampeg SVT4PRO Bass Amplifier Head with Tube Preamp

The sound is in your head. You´ve played countless instruments in search of the ultimate soul mate. Now you need an amp that will project your sound to the audience. That´s where the Pro Series heads come in. The majority of Ampeg Pro Series heads feature multi-tube preamps (not a single 12AX7 like many competitors), 5-position mid frequency selection, and Neutrik Speak-On connectors that lock and provide better conductivity. A Mute button lets you change instruments in the middle of a set without the annoying "pop," and a Tuner Out jack that stays active even with Mute button on. Pro Series heads are built for long haul. The units remain cool with variable speed fans that turn as the temperature dictates. DC supplied filaments ensure noise-free tube performance. And the 1/8 in. thick extruded aluminum front panels not only allow safe racking, the contoured fronts have an awesome look. The 1200-watt SVT-4PRO is the industry´s highest powered bass amp. Your creative mind now has the products to deliver the goods.

Input Peak LED
Dual 1/4 in. Inputs
-15 dB Pad
Variable 0 - 7:1 Compressor
Bright Switch
9-Band Graphic EQ
Defeatable Optocoupler Limiters
Internal 24 dB/Octave Crossover
Linkwitz-Riley State Variable Filters
50-1KHz Variable Crossover Point
High/Low Balance Control
Tuner Out Jack
Mute Function
1/4 in. Biamp High and Low Outputs
AC Convenience Outlet
15-Amp Circuit Breaker

Technical Description:
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

Ampeg Pro
Ampeg Pro

The Ampeg founders, Everett Hull und Stanley Michael that started a business called Michaels-Hull Electronic Labs in 1946. They produced and distributed a bass pick up that had been developed by Hull. It was called Amplified Peg, short Ampeg. The Patent laid the foundation for a successful company that has always been good for a new innovation and is seen as a worldwide stage standard. In 1949 Michael left the company and Hull chose the name for the company as it is today Ampeg. He gained six US patents for amplifiers. The most notable Ampeg equipment is the SVT series (Super Valve Technology); it’s been in production since 1969 and has up to 300 watts of power.

Ampeg do of course have more to offer than the classical SVT/8x10” configuration. interestingly the transistor amps achieve the same impressive mid range sound characteristics.


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Axel Pralat
Dept. Guitars/Basses
Tel.: +49 5451 909-130

Order Hotline
+49 5451 909-189


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