Features

Welcome

…to the Coustic world of power and clarity. The new 240/400/600SE amplifiers deliver the clean- est music you’ve ever heard at any power level in the 12-volt environment. Besides their sleek contoured design, the 240/400/600SE amplifiers have all the latest and most sophisticated audio features. This manual offers you a guided tour of all these exciting features. For the best sonic reproduction, please follow the installation suggestions and recommendations as closely as pos- sible. The time you spend will prove to be worthwhile when you sit back and enjoy the high fideli- ty music!

To further explore the potential of your Coustic amplifier, we recommend you match it with our full-feature high performance AM/FM CD/cassette source units, dynamic full-range speakers or subwoofers, state-of-the-art equalizers and electronic crossovers.

Whatever you need for your ultimate car audio system, look to Coustic - we have the fullest range of car audio components to meet the most critical demands.

That’s because …….COUSTIC ROCKS!

No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronically, mechanically, or otherwise, without the prior written permis- sion of Coustic or Mitek Corporation.

Please take a moment to complete and mail in the Owners’ Registration Card. (The serial num- ber of your amplifier is marked on the bottom of its metal chassis.) Please also record the serial number of your amplifier in the space provided below and keep this manual for future reference.

Serial Number: ________________________________________________________________

Date of Purchase: ______________________________________________________________

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MULTI-FUNCTION CIRCUIT DESIGN

These 2-channel amplifiers have built-in high-pass/low-pass filters. With the filter switched off, they can be configured as a quasi 3-channel amplifier.

BUILT-IN ELECTRONIC CROSSOVER WITH CONTINUOUSLY ADJUSTABLE CROSSOVER FREQUENCIES

You have a choice of selecting full-range, high-pass only or low-pass only. These filters feature 18 dB per octave high-pass and low-pass. Furthermore, the crossover frequencies are continuously variable for fine-tuning of your audio system.

OVER-CURRENT, SHORT CIRCUIT AND DC OFFSET PROTECTION

The sophisticated circuitry monitors abnormal conditions such as voltage spikes, oscillation, DC offset or short circuit. When any of these undesirable conditions exceed their respective preset limits, the circuit will shut down the audio system briefly and lights up the protection indicator to identify the problem for immediate attention. Once the problem is resolved, the amplifier will resume operation automatically.

HIGH SPEED HIGH CURRENT MOSFET SWITCHING POWER SUPPLY

High current MOSFET transistors are used in the power supply section to minimize internal heat and maximize reliability. Furthermore, the combination of the very high pulse-width-modulated (PWM) switching frequency and the extra large filter capacitance guarantees stronger and deeper transient bass response.

TRIPLE DARLINGTON HIGH CURRENT/HIGH VOLTAGE FULLY COMPLEMENTARY OUTPUT STAGE

Complementary output stage audio circuitry has long been a hallmark of "exotic" home amplifier design. Coustic is one of the very few car audio manufacturers to incorporate such elaborate audio circuitry into its power amplifiers. Triple Darlington configuration ensures the audio amplifier is always operating at its optimum conditions.

LINE OUPTUTS

The full-range line outputs can be used to feed signals to another amplifier for your future expansion or for setting up a more sophisticated system.

WIDE RANGE INPUT SENSITIVITY ADJUSTMENT

The input sensitivity level of the Coustic 240/400/600SE Series amplifiers can be easily varied from as low as 100 mV to as high as 5.0 volts by adjusting the control on the End Panel.

HIGH/LOW IMPEDANCE INPUT

If you are using a floating or common ground car radio, these amplifiers are the best fit for your system. They are compatible with floating or common ground car radio speaker outputs even without a floating ground adapter. If, in the future, you decide to change to a higher quality after market source unit with RCA pre-amp outputs (like the Coustic CD527), this same amplifier is there to give you improved frequency response and better sonic performance.

STABLE INTO 2-OHM LOADS

With the over-designed power supply section and a sophisticated power management circuitry, these amplifiers can maintain their stability even in the highly reactive low impedance environment.

ADJUSTABLE BASS BOOST

This feature allows you to enhance the bass performance of your sound system. The control is continuously variable with a maximum boost level of 18 dB.

BUILT-IN REMOTE SUBWOOFER LEVEL CONTROL PORT

This amplifier has a built-in remote subwoofer level control input port. With the optional RS remote control, the subwoofer output level can be adjusted to compensate for bass fluctuations in a moving vehicle.