Roland EQ-131 - Main Features; Important Notes; Power Supply

Thank you for purchasing the Roland EQ-131/215/231 Graphic Equalizer.
* Before using this unit, carefully read the sections entitled: “IMPORTANT SAFETY INSTRUCTIONS" (p. 2), "USING THE
UNIT SAFELY" (p. 3, 4), and "IMPORTANT NOTES" (p. 5). These sections provide important information concerning the
proper operation of the unit. Additionally, in order to feel assured that you have gained 2 good grasp of every feature
provided by your new unit, this manual should be read in its entirety. The manual should be saved and kept on hand as
a convenient reference.
Main Features ・The EQ-131 and EQ-231 are 31-band graphic equalizer which provide a wide range of detailed
equalization over the 20 Hz - 20 kHz bands.
The EQ-215 is a two-channel graphic equalizer with 15 bands spaced at 2/3 octave intervals. It
allows a wide range of detailed equalization over the 25 Hz - 16 kHz bands.
*Egualization range can be switched between +/- 6 dB and +/- 12 dB.
«An equalizer Bypass Switch is provided.
eA total level control allows you to compensate for the volume difference in equalizer and bypassed
sound.
* The Low Cut Filter and High Cut Filter can be used to cut unwanted frequency bands.
* Peak Indicators for each channel allow you to adjust levels to the optimum distortion-free settings.
* Both balanced phone jacks and XLR connectors are provided for input and output, allowing use with
a variety of equipment including channel insertion.
Copyright © 1996 ROLAND CORPORATION
All rights reserved. No part of this publication may be reproduced in any form without the written
permission of ROLAND CORPORATION.
IMPORTANT NOTES
In addition to the items listed under "IMPORTANT SAFETY INSTRUCTIONS" and "USING THE UNIT SAFELY" on pages 2 and
3, please read and observe the following:
Power Supply O «Do not use this unit on the same power circuit with any device that will generate line noise (such as
an electric motor or variable lighting system).
«Before connecting this unit to other devices, turn off the power to all units. This will help prevent
malfunctions and/or damage to speakers or other devices.
Placement «Using the unit near power amplifiers (or other equipment containing large power transformers) may
induce hum. To alleviate the problem, change the orientation of this unit; or move it farther away
from the source of interference.
Maintenance ・For everyday cleaning wipe the unit with a soft, dry cloth or one that has been slightly dampened
with water. To remove stubborn dirt, use a cloth impregnated with a mild, non-abrasive detergent.
Afterwards, be sure to wipe the unit thoroughly with a soft, dry cloth.
* Never use benzene, thinners, alcohol or solvents of any kind, to avoid the possibility of discoloration
and/or deformation.
Additional «Use a reasonable amount of care when using the unit's buttons, sliders, or other controls; and when
Precautions using its jacks and connectors. Rough handling can lead to malfunctions.
«When connecting / disconnecting all cables, grasp the connector itself—never pull on the cable. This
way you will avoid causing shorts, or damage to the cable's internal elements.
*A small amount of heat will radiate from the unit during normal operation.
*To avoid disturbing your neighbors, try to keep the unit's volume at reasonable levels. You may prefer
to use headphones, so you do not need to be concerned about those around you (especially when it
is late at night).
*When you need to transport the unit, package it in the box (including padding) that it came in, if
possible. Otherwise, you will need to use equivalent packaging materials.