Pioneer GR-551 User Manual

Operating
Instructions
GRAPHIC EQUALIZER
R-551
Thank. you.for buying this. Pioneer product.
Please read through these operating instructions so you will
know how to. operate your mode! properly: After you have +
finished reading the.instructions, put them away in a safe
place for future reférence.
In some countries or regions, the shape of the power plug
and power outlet may sometimes differ from that shown in
the: explanatory. drawings. However, the method of con-
PEST
necting and operating the unit is the same.
WARNING :710 Prevent FIRE OR SHOCK HAZ-
ARD, DO. NOT EXPOSE THIS APPLIANCE TO RAIN OR
MOISTURE.
IMPORTANT NOTICE
[For U.S. and Canadian models]
The serial number for this equipment is located on the rear
panel..Please.write.this.serial number.on. your enclosed .war-
ranty card and keep it ina secure area. This is for your
security. :
[For.Canadian model]
CAUTION:10: Prevent ELecTRIC SHOCK DO
NOT USE THIS (POLARIZED) PLUG WITH AN EXTENSION
CORD, RECEPTACLE OR OTHER OUTLET UNLESS: THE
BLADES. CAN BE FULLY INSERTED TO PREVENT BLADE
EXPOSURE.
ATTENTION: pour prevenin tes cHocs
ELECTRIQUES NE PAS UTILISER CETTE FICHE POLARISEE
AVEC UN PROLONGATEUR UNE PRISE DE COURANT OU
UNE AUTRE SORTIE DE COURANT, SAUF SI LES LAMES
PEUVENT ETRE INSEREES A FOND SANS EN LAISSER
AUCUNE PARTIE A DECOUVERT.
Ae
LINE VOLTAGE. SELECTOR SWITCH
Only: multi-voltage models are: ‘provided’ with’ this.
switch. U.S., Canadian, European, U.K., and Australian
models. are not provided with’ this ‘switch.
Mains. voltages in Saudi..Arabia:.are.127V and: 220V:
only. Never use this model! with 110V setting in Saudi
Arabia.
The line voltage selector switch ison the’ rear: panel. Before
your-model-is.shipped from the factory, this switch is setto
the power requirements of the destination. Check ghat it is set
properly before plugging the power cord into the KC outlet. if
the voltage is not properly set or if you move:to an area where
the voltage requirements differ, adjust the selector switch ag
follows.
eo
'Use
a
medium-sized
(flat-blade):
screwdriver..(nsert
the:
tip
of
the
screwdriver
into
the
groove
of
the
selector
switch
and
turn
it
so
that
the
power
voltage
marking
of
your area points: to the arrow:
VOLTAGE SELECTOR
Medium-sized screwdriver
@ PIONEER’
The future of sound and vision.
ie

Pioneer GR-551 Specifications

General

Brand	Pioneer
Model	GR-551
Category	Recording Equipment
Language	English

Summary

General Information and Safety

Important Warnings

Critical warnings to prevent fire, shock hazards, and ensure proper usage with polarized plugs.

Line Voltage Selector Guide

Guide for setting the line voltage selector switch on multi-voltage models for correct operation.

Safety Instructions

Operational Safety Guidelines

Essential guidelines for safe operation, installation, and environmental considerations.

Electrical Safety and Servicing

Instructions on electrical safety, polarization, cleaning, and when to seek qualified service.

Antenna Grounding

Details on grounding outdoor antennas for protection against voltage surges and static charges.

United Kingdom Plug Usage

Warning regarding plug compatibility and wiring for UK models.

Rear Panel Facilities

System Connections I

System Connections II

Front Panel Facilities

Equalizer and Tape Monitor Switches

Explains the function and operation of the Equalizer and Tape Monitor switches.

Power Switch Operation

Details on the power switch, standby mode, and disconnecting the power cord.

Equalizer Controls

Description of the equalizer controls for different frequency bands and their adjustment.

Using the Equalizer Controls

Compensating Playback Frequency Response

Adjusting equalizer controls to flatten the frequency response of phono cartridges or speakers.

Improving Listening Room Acoustics

Adjusting equalizer controls to compensate for room acoustics and furniture effects.

Advanced Equalizer Techniques

Coloring Sound Reproduction

Adjusting controls to boost or attenuate specific frequency bands for desired instrument/vocal emphasis.

Recording Techniques

Methods for noise reduction during recording/playback and creating tapes compatible with playback equipment.

When Playing Records

When Recording Broadcasts

When Playing Back Tapes

When Editing Tapes

Troubleshooting

Functioning of Switches

Specifications