Ampeg SVP-PRO manual Rear Panel, System Block Diagram

Models: SVP-PRO

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SVP-PRO Bass Preamp

The Rear Panel

MADE IN THE U.S.A. BY

SLM ELECTRONICSAC LINE IN115V 230V 1400 FERGUSON AVENUE

ST. LOUIS, MO 63133

MODEL # SVP PRO

SERIAL #

FOOT

SWITCH

PREAMP OUT

EFFECTS

RETURN

SEND

TUNER

OUT

TRANSFORMER BAL. OUT

PRE

POST

21

22

23

24

25

26

27

28

29

21.AC LINE IN: Firmly insert the female end of the AC power cord into this socket. The grounded power cord should only be plugged into a grounded power outlet that meets all applicable electrical codes and is compatible with the voltage, power and fre- quency requirements stated on the rear panel. Do not attempt to defeat the safe- ty ground connection.

22.AC LINE SELECTOR: Use this switch to match the unit to the AC line voltage.

23.FOOTSWITCH: Use this jack to con- nect a two-button footswitch to the preamp for remote control of the Mute and Graphic EQ. (Tip controls Mute, ring controls the Graphic EQ.) The front panel switches remain active when a footswitch is con- nected. The front panel Graphic EQ switch (#13) must be depressed for the footswitch to control the Graphic EQ.

24.PREAMP OUTS: Use these jacks to connect the signal from the preamp to your power amplifier, mixing console or house PA system.

25.EFFECTS LOOP RETURN: Use this jack to connect the signal from an external effects processor to the preamp by means of a shielded signal cable.

26.EFFECTS LOOP SEND: Use this jack to connect the signal from the preamp to the input of an external effects processor by means of a shielded signal cable.

27.TUNER OUT: Use this jack to connect the preamp to an external tuner. The signal at this jack is a direct output from the instru- ment. This is the only signal which remains active when the Mute switch (#2) is depressed.

28.PRE/POST: Use this switch to deter- mine whether the signal at the Transformer Balanced Out jack (#29) is pre-EQ (switch in the out position) or post-EQ (switch depressed).

29.TRANSFORMER BALANCED OUT: Use this XLR jack to connect the preamp to an external power amplifier, mixing console or house PA system. The signal at this jack is pre- or post-EQ depending on the setting of the Pre/Post switch (#28).

System Block Diagram

 

 

 

 

 

 

 

 

 

BUFFER

 

 

 

 

 

 

 

 

 

 

 

TUNER

 

 

 

PEAK

 

 

 

 

 

OUT

 

 

 

 

 

 

 

 

 

 

 

 

LED

 

 

INPUT

 

 

 

 

 

 

 

 

 

-15dB PAD

GAIN

 

 

DRIVE

 

MID

 

 

 

 

 

ULTRA

 

FREQUENCY

 

 

 

BRIGHT

ULTRA

BASS TREBLE

 

 

 

 

LO

 

 

 

 

 

 

 

 

HI

 

 

 

 

 

 

 

MUTE

 

 

 

 

 

 

PRE/POST

TRANSFORMER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BALANCED

 

 

 

 

 

 

 

 

 

OUT

 

 

EQ ON

 

 

EFFECTS

EFFECTS

 

 

 

PREAMP

 

 

 

 

 

 

 

 

 

 

 

SEND

RETURN

 

 

 

OUT

 

GRAPHIC

 

 

 

 

 

 

 

 

 

EQ

 

 

 

 

 

 

 

BUFFER

 

 

 

 

 

 

 

 

MASTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PREAMP

 

 

 

 

 

 

 

 

 

OUT

 

 

 

LEVEL

 

 

 

 

 

 

 

MUTE

 

 

 

 

 

 

 

 

 

SWITCHING

FOOTSWITCH

 

 

 

 

 

 

 

CIRCUIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GRAPHIC

 

 

 

 

 

 

 

 

EQ

 

 

 

 

 

 

 

5

 

 

 

 

 

 

 

 

 

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Ampeg SVP-PRO manual Rear Panel, System Block Diagram

SVP-PRO specifications

The Ampeg SVP-PRO is a renowned preamplifier that stands out in the world of bass amplification. Designed with the professional bassist in mind, it exemplifies versatility and high performance, making it a favorite among musicians and audio engineers alike.

One of the main features of the SVP-PRO is its tube preamp design. Integrating a 12AX7 vacuum tube, this preamp provides a warm, rich tone that is highly sought after in live and studio environments. The tube can significantly enhance the harmonic characteristics of the sound, resulting in a vintage texture that many purists admire.

The SVP-PRO offers an extensive range of tone-shaping controls that allow for comprehensive sound customization. Featuring a 3-band EQ section, musicians can easily manipulate the low, mid, and high frequencies to suit their individual playing style. Furthermore, an Ultra Low and Ultra High switch enhances the low-end response and brightens the top end, providing flexibility for various musical genres, from jazz to rock.

Another notable feature is the onboard Compressor. This dynamic control helps to smooth out the dynamics of the performance, ensuring that both soft and loud notes maintain clarity without sacrificing sustain or punch. The compressor is easy to dial in, offering a gentle compression that can be adjusted from subtle to more pronounced effects.

Connectivity is another strong point of the SVP-PRO. The preamp is equipped with balanced XLR outputs, enabling seamless integration into professional recording and sound systems. It also features a 1/4” output for connecting to amplifiers or effects chains. The inclusion of an effects loop allows for the incorporation of external processors, further expanding its sonic capabilities.

Durability is essential for any professional gear, and the SVP-PRO is constructed with ruggedness in mind. The sturdy chassis is designed for both studio and stage use, ensuring that it can withstand the rigors of touring musicians while still delivering exceptional audio performance.

In summary, the Ampeg SVP-PRO is a versatile and powerful preamp that combines classic tube warmth with modern usability. Its extensive tone-shaping features, built-in compression, and robust construction make it an essential tool for bassists seeking a reliable and high-quality sound both on stage and in the studio. Whether you’re a seasoned professional or an aspiring player, the SVP-PRO provides the tools needed to shape your unique sound.