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Peavey Classic VT Series - User Manual

Peavey Classic VT Series
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VT
SERIES
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Summary

General Description

Master Gain Control

Explains the master gain control's function for loudness and dynamics.

Front Panel Controls

Bright Gain Control

Explains the bright channel gain's sensitivity and Automix role.

Normal Gain Control

Describes the normal channel sensitivity and distortion.

Rate Control

Describes the phase oscillator speed and its integral switch.

Master Volume Control

Discusses the master volume for effects, distortion, and noise reduction.

Rear Panel Connections

Speaker Outputs

Describes speaker output jacks and impedance matching.

Preamp Out;Power Amp In

Details the patching system for accessories and signal flow.

Summary

General Description

Master Gain Control

Explains the master gain control's function for loudness and dynamics.

Front Panel Controls

Bright Gain Control

Explains the bright channel gain's sensitivity and Automix role.

Normal Gain Control

Describes the normal channel sensitivity and distortion.

Rate Control

Describes the phase oscillator speed and its integral switch.

Master Volume Control

Discusses the master volume for effects, distortion, and noise reduction.

Rear Panel Connections

Speaker Outputs

Describes speaker output jacks and impedance matching.

Preamp Out;Power Amp In

Details the patching system for accessories and signal flow.

Overview

The Peavey VT Series Classic is a tube-type guitar amplifier, representing a redesigned and updated version of the popular Peavey Classic series. It incorporates advanced circuitry and design innovations from larger, more powerful Peavey amplifiers, aiming to provide a versatile and high-performance experience for musicians.

Function Description:

The amplifier features two distinct preamps: a bright channel and a normal channel. The bright channel offers a single input and is voiced with more high-frequency response. The normal channel provides both a high-gain (A) and a low-gain (B) input, allowing for flexibility with different signal levels and the connection of two instruments simultaneously.

A unique "Automix" input is included, which connects to the bright channel. The bright channel's output then feeds into the normal channel through a signal processing circuit, creating a series/parallel arrangement. This allows the bright channel to overdrive the normal channel, with the bright channel's gain control moderately affecting the overdrive signal. This setup enables both a straight signal from the normal bright channel and a smooth overdrive signal from the normal channel, selectable via the supplied remote footswitch.

The VT Series Classic boasts a highly effective three-band equalization system (Bass, Middle, Treble) with a wide range of variation, allowing users to achieve diverse tonal colorations. The middle control, in particular, is noted for its ability to significantly alter the amp's voicing and match the sound of other competing units.

A standout feature is the integrated phase circuit, which offers an extremely wide range of phasing effects, from subtle colorations to deep "swooshing" sounds, and even tremolo/vibrato effects. The versatile oscillator circuit can modulate the phase effect from very slow to extremely rapid rates, encompassing conventional phasors, tremolo/vibrato circuits, and even approximating rotating speaker systems. The "Color" control determines the amount of internal feedback, setting the level of the phasing effect from subtle changes to deep effects with regeneration introduced at higher settings. The "Rate" control adjusts the speed of the phase oscillator, with a wide range from extremely slow to rapid. An integral switch on the rate control allows the phase circuitry to be completely cut out of the circuit, taking precedence over the remote footswitch. It is recommended to cut off the phasor when not in use to avoid modulating residual noise.

The amplifier also includes a deep-sounding reverb system, which follows the master volume control. The reverb drive circuitry feeds a reverb spring, and the amplified return signal is remixed with the clear signal before being applied to the power amplifier. The reverb master control determines the gain of the reverb return amplifier, providing ample reverb even at low settings. The reverb can be turned on or off by the remote footswitch when plugged into the rear panel.

A master gain control allows for overall loudness and gain adjustment, and also provides control over the dynamics of the preamp circuit. This control, in conjunction with the bright and normal gain controls, can be used to achieve harmonic distortion and sustain by setting front-end gains high and master volume low. It also affects the noise level, allowing for improved noise performance in studio environments at lower settings.

Important Technical Specifications:

  • Power Output: 50 Watts RMS @ 5% THD into 4 Ohms
  • Gain: 55 dB (EQ Flat)
  • Signal to Noise Ratio: 75 dB (Volume 12:00, Master 12:00)
  • Preamp Output: 2 Volts RMS
  • Minimum Input Voltage For Rated Output: 50 mV
  • Speaker Outputs: Standard phone jacks with both 8-Ohm and 4-Ohm taps, supporting a wide range of speaker systems.
  • Preamp Out/Power Amp In: Preamp out signal level is approximately 2 Volts RMS with a relatively low (600 Ohms) output impedance.

Usage Features:

  • Inputs: Bright input (single), Normal inputs (high gain A, low gain B), and Automix input.
  • Controls: Bright Gain, Normal Gain, Bass EQ, Middle EQ, Treble EQ, Color (phase effect level), Rate (phase speed), Master Reverb, Master Volume.
  • Remote Footswitch: Supplied for controlling Automix selection and reverb on/off. The footswitch connects via a standard "DIN" type socket on the rear panel, requiring careful alignment during connection.
  • Pilot Light: Indicates when the amplifier is switched on and receiving power.
  • Power Switch: Domestic units feature a three-position switch with two "ON" positions for optimal grounding and lowest hum/popping. Export models have a simple on/off switch.
  • Line Cord: Three-wire line cable with proper grounding facilities. Grounding adaptors should be used if proper grounded receptacles are unavailable.
  • Preamp Out/Power Amp In Jacks: These jacks allow for "in line" patching of external accessories like noise gates or delay lines. The preamp out signal is internally connected to the power amp input, but can be rerouted through external units.

Maintenance Features:

  • Fuse: Located within the fuseholder cap on the rear panel. It must be replaced with a fuse of the proper type and value to prevent damage and voiding the warranty. Repeated fuse blows indicate a need for professional service.
  • Grounding: The power switch on domestic units helps achieve proper grounding to minimize hum and shock hazard. The three-wire line cord with grounding facilities should not have its ground pin removed.
  • Remote Switch Socket: Care should be exercised when connecting and disconnecting the remote footswitch to prevent damage to the plug or socket.
  • Phasor Management: It is recommended to cut off the phase circuit (either via footswitch or the front panel rate control switch) when not in use to avoid modulating residual noise from the input preamp.

Peavey Classic VT Series Specifications

General IconGeneral
BrandPeavey
ModelClassic VT Series
CategoryAmplifier
LanguageEnglish

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