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160SE
User Manual
11 pgs271.72 Kb0

Coustic 160SE User Manual

Owner’s Manual
for 160SE
Two Channel Power Amplifier
www.coustic.com
Welcome … to the Coustic world of power and clarity. The new 160SE amplifier delivers the cleanest music
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 permis­sion of Coustic or Mitek Corporation.
Please take a moment to complete and mail in the Owners’ Registration Card. (The serial num­ber 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: ______________________________________________________________
FEATURES
MULTI-FUNCTION CIRCUIT DESIGN This amplifier has built-in high-pass/low-pass filters. With the filter switched off, it can be configured as a quasi 3-channel amplifier.
BUILT-IN ELECTRONIC CROSSOVER 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.
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 HEXFET SWITCHING POWER SUPPLY High current HEXFET 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.
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.
LINE OUTPUTS 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 this amplifier 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, this amplifier is the best fit for your system. It is 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.
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CONTROLS, INDICAT ORS, AND TERMINALS
FRONT PANEL
Figure 1: Front Panel Terminals and Controls
1. FILTER MODE SELECT SWITCH (MODE) "HPF": Slide switch to this position if the amplifier is used as a mid/tweeter amplifier. "OFF": Slide switch to this position if the amplifier is used as a full-range amplifier. "LPF": Slide switch to this position if the amplifier is used as a subwoofer amplifier.
2. HIGH-PASS / LOW-PASS FREQUENCY SELECTOR (FREQ) Select high-pass or low-pass crossover frequency: 80 or 120Hz.
3. INPUT SENSITIVITY LEVEL CONTROL (SENS) The input sensitivity level can be varied from 5.0 volts to 100 mV depending on the output voltage of the source unit (refer to sub-section titled INPUT SENSITIVITY ADJUSTMENT).
4. HIGH IMPEDANCE INPUT (RCA) To be connected to RCA pre-amp outputs from a source unit (i.e., radio, tape deck or CD player).
5. LOW IMPEDANCE INPUT (SPKR LEVEL) To be connected to speaker outputs from a source unit (i.e. radio, tape deck or CD player) when RCA outputs are not available.
6. LINE LEVEL OUTPUT This output can be used to connect to another amplifier for system expansion. Note: This line level output is full range.
REAR PANEL
Figure 2: Rear Panel Terminals and Indicators
7. POWER AND PROTECT INDICATOR (PWR/PRT) Green light indicates that the amplifier is "ON". Red light indicates either a high current, short circuit or DC offset is detected at the speaker outputs. The amplifier will revert to normal operation once the problem is rectified. This indicator also lights up at a high operating temperature. Under this condition, the ampli­fier will automatically shut down. As soon as the temperature falls to a safe level, the amplifi­er will automatically resume operation.
8. POWER INPUT TERMINAL (B+) To be connected to the positive terminal of the vehicle’s battery or other constant +12 V source.
9. GROUND INPUT TERMINAL (GND) To be wired to the vehicle’s chassis for ground.
10. REMOTE TURN-ON INPUT TERMINAL (REM) To be connected to the remote control wire or power antenna lead of the source unit for remote ON/OFF.
11. FUSE RECEPTACLE
12. LEFT/RIGHT SPEAKER OUTPUT TERMINAL For connection to the speaker system.
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SPKR LEVEL INPUT OUTPUT
R
L
SENS
MIN MAX
MODE
HPF OFF LPF
FREQ
80 120
12
+ L - + R -
BRIDGE
GRD REM B+
710 89 11
PWR / PRT
FUSE
SYSTEM CONFIGURATION
By purchasing the 160SE power amplifier, you are already one step closer to experiencing the purest and most natural sound quality in the automobile environment. To take full advantage of the potential of this amplifier, before installation, we strongly recommend that you acquaint your­self with all its available features and then spend some time in designing a system most suitable for you, consider the components you have now and those that you plan on adding or upgrading in the future.
BUILT-IN ELECTRONIC CROSSOVERS An electronic crossover has many advantages over passive crossovers - lower cost, simplified yet more flexible system design, lower distortion and higher gain structure. The 160SE power amplifier is equipped with built-in 18 dB per octave electronic crossovers that can be configured for full-range, high-pass or low-pass applications. The line output is designed to provide addition­al expansion capability to your sound system.
BI-AMPLIFICATION A bi-amplified system normally consists of an active crossover and two amplifiers. The active crossover divides the audio frequency spectrum into two ranges: frequencies below the crossover point are directed to the amplifier driving the subwoofer(s), while all frequencies above the crossover point are directed to the amplifier driving the mid-range/tweeters. Because of the versatility of the Coustic amplifiers, you are quite free to build whatever mobile audio system you want or to plan a long term expansion scheme for your car’s audio system. For example, with the low impedance input, you can use the amplifier as a full-range amplifier to upgrade your existing factory sound system to drive the front full-range speakers. Or you can make a "parallel" connection on the amplifier to run both the front and rear speakers. The full-range line output can be used to drive an additional amplifier driving the rear full-range speakers.
You can also configure the amplifier as a mid/tweeter amplifier. If you need more power, you can bridge the amplifier as a mono subwoofer amplifier.
3 CHANNEL CONFIGURATION The Multi-Function Circuit enables the amplifier to be configured as a 1-channel, bridged, mono amplifier driving a single speaker, 2-channel, stereo amplifier driving a pair of speakers, or quasi 3-channel amplifier. The bridged mono mode is commonly used for subwoofer amplification. The amplifier provides more power in the bridged mono mode than it does in stereo mode. With the assistance of passive crossovers and in its quasi 3-channel mode, the amplifier can be configured as a 2-way amplifier driving a pair of left- and right-channel, full-range mid-tweeters and a mono woofer. Care must be taken to choose capacitors and inductors of correct value; otherwise damage could be done to the speakers and/or the amplifier. For approximate passive crossover components value, please refer to Coustic’s website, http//:www.coustic.com.
SPEAKER IMPEDANCE Although extremely low impedance speaker loads will not damage the amplifier, for stereo mode, we recommend speaker loads of 2, 4 or 8 ohms; for bridged mono mode 4 or 8 ohms. (Note: In bridged mono mode, the amplifier sees only half of the speaker impedance.) NOTE: Remember that we are not defying the laws of Physics! IF you decide to connect ANY Coustic amplifier into a bridged mono load BELOW 4 ohms, Physics dictates that current draw doubles! Be ready!
POWER CABLES Power cables are as important as battery capacity. Use only high quality power cables of gauge size AWG 8 or bigger for installation. YOU CAN NEVER HAVE TOO BIG OF A POWER/GROUND WIRE!
CIRCUIT BREAKER/FUSES It is also advisable to install a circuit breaker/fuse close to the battery. This would effectively lower the risk of the power cable catching fire should a short circuit occur in the audio system. A circuit breaker or fuse with 50% of the main batteries amp hour rating is recommended. Going larger in circuit breaker or fuse value means that you have NO protection. DO NOT over fuse! Fuses on the amplifier DO NOT protect the amplifier, they protect the car.
SPECIAL PRECAUTIONS & ACCESSORIES Quality equipment and proper system design and installation are the ingredients for the ultimate car audio system. With your wise decision to purchase this Coustic amplifier, you are already one big step closer to realizing your dream. The next step is simple - have an experienced pro­fessional Coustic dealer install your audio system. However, if you prefer to install the system yourself, we have the following commendations for your reference:
Caution: Improper installation will void the product warranty and Coustic is not responsible for any consequential damage to the amplifier and/or other audio components and/or electrical com­ponents of the vehicle.
TERMINALS, LUGS AND CONNECTORS High current terminals, lugs and/or connectors are also required to ensure a safe and sure elec­trical connection and conduction.
NEGATIVE GROUNDING SYSTEM The 160SE power amplifier is designed for use with a 12-Volt negative ground system. Installing this amplifier in a vehicle with a POSITIVE ground system will result in severe damage to the amplifier, other audio components and/or the vehicle’s electrical components. If your vehicle hap­pens to run on a positive ground system, please consult your Coustic dealer.
WARNING: These power amplifiers are very powerful. We strongly recommend
installation in the following manner:
(1) by professional mobile audio installers;and (2) incorporating all of the above special precautions and accessories.
Failure to comply with either one or both of the above conditions will render the warranty void and Coustic is not responsible for any consequential damage to the amplifier, other audio compo­nents and/or electrical components of the vehicle.
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