Main Features - Roland CPM-300 Owner's Manual

OWNER'S MANUAL
Before using this unit, carefully read the sections entitled: "IMPORTANT SAFETY INSTRUCTIONS" (p. 2),
"USING THE UNIT SAFELY" (p. 3), and "IMPORTANT NOTES" (p. 4). These sections provide important infor-
mation concerning the proper operation of the unit. Additionally, in order to feel assured that you have gained a
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

Lightweight, Compact, and Energy-Efficient
Employing the latest developments in high-efficiency amplifier technology, the CPM-300 packs a powerful 150 watts
per channel (into 4 ohms), yet weighs a mere 6.0 kilograms, consumes only half the energy, and generates just
one-third the heat of previous powered mixers (in actual operation, compared with previous Roland products). The
compact design means you can easily find space to set it up, and it travels a lot easier. The handles make this piece
of gear easy to carry, too. The CPM-300 is ideal as a simple PA for a variety of events, and since it is air-cooled, it
stays quiet.
Packed with Features, Yet Simple to Operate
The CPM-300 provides six mono and two stereo channels for a total of ten input channels. With its widely-
adjustable input circuits, the SENS knobs allow you to adjust the input sensitivity with the twist of just one control.
This allows the CPM-300 to accept a wide range of inputs, from mics to CD players to electronic instruments, all
with a simple adjustment.
Easy Elimination of Irritating Feedback
The CPM-300 features a digitally processed "Anti-Feedback" function. Feedback is automatically detected and elim-
inated the instant it begins.
The high-quality internal effects include four types of digital reverb.
A few simple steps let you perform with these superior effect sounds, from karaoke-style echo to concert hall reverb
sound, with ease.
Limiter Included in Power Amp Section
The mixer's amplifier is equipped with a limiter circuit, providing protection against the clipping that can cause distor-
tion and blown speakers.
Protection Circuits for Added Reliability
With a PC Limiter Circuit which guards against shorting in the output, a Thermal Protection Circuit, a speaker-saving
DC Detection Circuit, a Muting Circuit that cuts the "shock noise" that occurs when the power is switched on, and
more, the CPM-300 features a variety of protection circuits to ensure dependable operation.
ECOS (Efficiency Control Operation System) is a new high-efficiency amplifier technology developed by Roland. With this technology, amplifier
power consumption is only 1/2 that of previous amps, while generating only 1/3 of the heat, all with no sacrifice in sound quality. As a result, the
heat dissipation and power sections are smaller, making the amplifier lighter and more compact than previous models.
Copyright  1998 ROLAND CORPORATION
All rights reserved. No part of this publication may be reproduced in any form without the written permission of ROLAND CORPORATION.
New ECOS High-Efficiency Amplifier Technology
01677301 '99-10-C2-21N