Peavey XR-500

GENERAL DESCRIPTION
The new XR-500 represents our latest effort to combine professional features previously found only in separate mixer/equalizer/power
amp components into a single compact ar,o ’ugaea package. The design of the XR-500 utilizes ihe latest advances n semiconductor
technology and the overall circuitry has been designee: and optimized by use of the latest computer aided design techniques Tms unit’s
Improved specifications nave been made posable by a thorough and complete cesicn effort resulting in ail new circuitry from the input jack
through lo the speaker output.
The XR-500 features five mdependenl input channels and includes a separate pfe” monitor ser\J acbve shelving type high and tow
equalization, and a "posl‘ effects sand on each chance! Master level contrc.’s arc provided for 'ho mao. rrcoilo’ and reverb return \ lull
seven-bare graphic equalizer has been built into the system and utilizes Ihe most contemporary active filter circuitry available Additional
flexibility is provided by the XR-500‘s patch panel, enabling this versalile unit lo be usee in cxxiiunclian with an exlremey v/idu range o'
auxiliary equipment
The newly engineered 130-Walt power amplifier features our exclusive DD~^ {' Distortion Dotociion Techniquca") compression
Circuitry that electronically senses tne onset of clipping and automa? cany activates the comrressicn circuit 10 maximize headroom, and
prevent clipp nc and distortion m the power amp The use of this DOT* compression circuit efleciiveiy increases the apparent headrcom
available. Ihus maximizing every precious Watt of power available This compresscn feature alicv/s the XR-500 to quite eheclively compete
with un ts having conscerably more RMS power
The power amp of ihe XR-500 utilizes lour high-voltage, high-speed TO-3 powpr devices bolted to a massive heatsink The internal
power supply consists ol a very large pov/er (mains) transformer featuring a grain oriented silicon steel core and a high degree of magnetic
shielding to mmmizo extraneous hum fields Siiicor rectifiers cornectec in 3 ful wave pudge feed powe* to large elect'olytic Mter banks and
provide considerably more music pov/er than the 130-Watt RMS power rating would indicate
■ Overall, ihe XR-500 brings protessima performance together m an exiremesy versatile and compact package, ofiering features and
specifications formerly available only with separate componerts in a single pccable package.
WARNING: To prevent electrical shock or lire hazard, do
not expose this appliance to rain or moisture.

Peavey XR-500 Specifications

General

Type	Powered Mixer
Equalization	3-band EQ per channel
Weight	27 lbs (12.2 kg)
Input Impedance	10k Ohms
Output Impedance	4 Ohms
Effects	Reverb
Inputs	XLR and 1/4" on each channel
Outputs	Main, Monitor
Frequency Response	20 Hz - 20 kHz

Summary

XR-500 General Description

XR-500 Features Overview

Overview of the XR-500's independent channels, equalization, and effects.

DDT Compression Circuitry

Explains the exclusive DDT compression circuitry for headroom and distortion prevention.

Power Amplifier Design

Details the power amp's TO-3 devices, heatsink, and power supply design.

Front Panel Input and Channel Controls

Input Jacks (A) and (B)

Describes the dual input jacks for flexible microphone matching and overload protection.

Channel Gain Control (C)

Adjusts input preamplifier gain for optimum dynamic range and low noise.

Channel Monitor Control (D)

Independent level adjustment for the monitor mix, feeding the monitor buss.

Channel Equalization Controls

Active shelving EQ for 15 dB boost/cut, affecting tonal balance and feedback control.

Channel Low EQ Control (E)

Boosts or cuts low frequencies; clockwise for boost, counter-clockwise for cut.

Channel High EQ Control (F)

Boosts or cuts high frequencies; clockwise for boost, counter-clockwise for cut.

Channel Effects Control (G)

Adjusts signal level to the effects bus for internal reverb and external effects output.

Master Section Overview

Controls master level, monitor, reverb return, and graphic EQ for system management.

Rear Panel Connections and Components

Auxiliary Input (M)

Provides access to the main mixing buss for external devices.

Effects Output (N)

Delivers output signal from the effects buss to drive line-level devices.

Monitor Output (O)

Provides a signal for an external monitor system.

Main Output (P)

Delivers output from the main mixing buss.

Graphic Input (Q)

Allows patching into the internal graphic equalizer/power amp.

Fuse (U) Location

Location and importance of the fuse for equipment protection and warranty.

Master Controls and Special Features

Master Level Control (H)

Adjusts the main mixing buss gain, affecting main output and amp input.

Master Monitor Level Control (I)

Controls the gain of the monitor mixing buss, determining monitor output level.

Master Reverb Return Control (J)

Adjusts the amount of delayed signal mixed back into the main mix buss.

Graphic Equalizer (K) Operation

Details using the master graphic EQ for room equalization, feedback control, and tone shaping.

Excessive Boost Warning

Warns about potential power amplifier overload from excessive EQ boosts.

Feedback Control Procedure

Provides a procedure for using the graphic equalizer to suppress feedback.

Pilot LED (R) Indicator

Indicates when the electrical supply is switched on and delivering power.

DDT Compression with LED (S)

Explains the DDT compression and its LED indicator for maximizing amp performance.

XR-500 Patch Panel

Designed for using auxiliary accessories, mixers, and power amps.

Footswitch Jack (L)

Input jack for an optional remote reverb cutoff pedal.

Rear Panel Switches and Connections

Power Switch (V) Operation

Explains the three-position power switch and selecting the correct position for low hum.

Line Cord (T) Safety

Importance of the three-wire line cord with proper grounding for safety and noise reduction.

Speaker Outputs (W)

Details the 1/4" speaker output jacks, their parallel wiring, and impedance considerations.

Line Cord Retainer (X)

Features on the rear panel for storing the mains cable during travel.

Safety Warnings and Specifications

Hearing Protection Warning

Emphasizes protecting hearing from high noise levels to prevent permanent loss.

General Precautions

Lists important cautions regarding water, heat, ventilation, and servicing.

Electrical Safety Precautions

Details precautions related to power cords, grounding, and potential shock hazards.

XR-500 Specifications Summary

Provides detailed technical specifications for channels, inputs, outputs, and power.