Ampeg SVT-4 PRO - User Manual

Owner’s Manual
SVT-4 PRO
Bass Guitar Amplifier

Summary

Owners Manual

Important Safety Instructions

Introduction

Features

Details the key features and capabilities of the Ampeg SVT-4 PRO amplifier.

Hook-up Diagrams

Mono Bridged Configuration

Illustrates connecting the amplifier in mono bridged mode for maximum output power.

Dual Mono Configuration

Shows how to connect two sets of cabinets using the amplifier's dual mono operation.

Stereo Configuration with Effects

Details connecting the amplifier for stereo operation with an external effects processor.

Bi-amp: Full Range; Lows

Explains bi-amping setup for full range and low-frequency cabinets.

Bi-amp: Highs; Lows

Describes bi-amping setup for high-frequency and low-frequency cabinets.

Bi-amp with Second Amp

Illustrates bi-amping configuration using the amplifier and a second external amplifier.

The Front Panel

Front Panel Controls: Input, Gain, and Tone

Details input, tuner out, mute, pad, gain, compression, and tone switches.

Front Panel Controls: EQ, Master, and Limit

Covers bass, midrange, treble, bright, graphic EQ, effects bypass, limit, and master controls.

Front Panel: Crossover, EQ Level, and Power

Explains crossover, graphic EQ level, indicators, and power switch functions.

The Rear Panel

Rear Panel: Power and Speaker Connections

Details circuit breaker, AC power input, and speaker output jacks.

Rear Panel: Amp Inputs, Footswitches, and Bi-amp Outputs

Covers power amp inputs, footswitch jacks, and bi-amp output connections.

Rear Panel: Line Outputs and Effects Loop

Describes transformer balanced line outputs, effects loop connections, and tuner out.

Suggested Settings

Setting 1 - Classic Ampeg

Provides a starting point for the classic Ampeg sound.

Setting 2 - Funky Thing

Offers settings for a funky, groovy bass tone.

Setting 3 - Ethereal Fretless

Suggests settings for an ethereal, fretless bass sound.

Setting 4 - “Jaco”

Presents settings inspired by Jaco Pastorius's tone.

Setting 5 - R&B Groove

Provides settings for an R&B-style bass groove.

Setting 6 - Downright Upright Done Right

Offers settings for an upright bass sound simulation.

Personal Settings

Rack Mounting

Troubleshooting

Block Diagram

Technical Specifications

Service Information

Ampeg SVT-4 PRO Specifications

Output Power

output power rating mono-bridged at 4 ohms	1600 Watts
output power rating mono-bridged at 8 ohms	1200 Watts
output power rating 2 x at 2 ohms	900 Watts
output power rating 2 x at 4 ohms	625 Watts
output power rating 2 x at 8 ohms	350 Watts

Tone Control Range

bass control range	±12dB @ 50Hz
midrange control range	±15dB @ selected frequency
treble control range	+14dB / -19dB @ 5kHz

Graphic EQ

graphic eq level	±10dB
graphic eq range 33Hz	±15dB
graphic eq range 80Hz	±8dB
graphic eq range 150Hz	±8dB
graphic eq range 300Hz	±8dB
graphic eq range 600Hz	±8dB
graphic eq range 900Hz	±8dB
graphic eq range 2kHz	±8dB
graphic eq range 5kHz	±9dB
graphic eq range 8kHz	±10dB

Switches

bright switch	+6dB @2kHz
ultra high switch	+6dB @ 5kHz
ultra low switch	+2.5dB @ 50Hz -12dB @ 560Hz +1.5dB @ 5kHz

General Specifications

signal to noise ratio	75dB typical
compression ratio	10:1
tube complement	12AX7 (3)

Power Requirements

domestic power requirements	120VAC, 60Hz, 1.4kVA
export power requirements 100/115VAC	50/60Hz, 1.4kVA
export power requirements 230VAC	50/60Hz, 1.4kVA

Size and Weight

width	19/17.4”
height with feet	5.6”
depth	15.5”
weight	39.5 lbs