Soundstream MC 500 Owner's Manual
MC 500
Five Hundred Watt
Multiple-Channel
Amplifier
P
.
Thank you for purchasing a Soundstream amplifier. You now own the finest high
power amplifier available, a precision component capable of audiophile-quality
performance.
CONTENTS
Wiring diagram
Design feature
Installation
Power connections
Remote power-on connection
LED power indicators
Selecting operating mode
Input connections
Output connections
Optimizing for speaker impedance
Input level adjustment
Linear Subwoofer Extension
Protection circuits
Service
Specifcations
3
4
5
6
7
a
a
9
10
11
11
12
13
13
14
Figure
I 2Channel
Opmztian
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Flgun 2
I
3.Channel
OperatIm
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DESI6U
FEATURES
The Soundstream MC500 is the ultimate amplifier for high-power automotive
applications.
The MC500 is conservatively rated at 500 watts into 4 ohms. This power can
be divided into four channels (4 x 125 watts.), three channels (2 x125 watts,
1 x
250 watts), or stereo (2 x 250 watts).
Each output device is individually
rated at 125 watts, and there are 24 discrete output devices in the MC500, for
a total of 3 kilowatts of device capability.
With such reserves and no current
limiting, the MC500 operates without strain even at maximum output. Power,
ground, and speaker connectors are rated to handle up to 80 amps and up to
6 gauge wire.
The MC 500 incorporates a unique protection system that prevents thermal
overload without the need for a fan. Should the unit approach an overheated
condition, dynamic headroom is reduced instead of a complete shutdown,
until normal operating temperature is reached. Then full output capacity is
restored.
The entire process is automatic and inaudible. In the case of a
malfunction which should cause continued overheating, secondary thermosats
will shut down the amplifier in a conventional manner.
An especially useful feature of the MC500 is the Linear Subwoofer Extension
Circuit
extends bass as much as a full octave.
(LSE),
which
c.ompensates
for the natural
rolloff
of most speakers and
LSE provides a
~linear
boost of 6
dB/octave.
starting at a point which is continuously variable over the range 35-280 Hz.
A steep 24
Only premium parts are used in the MC500, such as metal-film resistors,
plated input connectors, and
equipped with generous heat sinks.
dB/octave
filter attenuates the signal below 20 Hz.
imnersible
sealed potentiometers. The case is
Input sensitivity is adjustable to match
go!d-
any tuner/deck--the MC500 can even be used as a power booster.
-5-
-.
The MC500 features dual-monaural construction, with two fully independent soft
regulated pulse-width modulated power supplies that provide stability for
low-
impedance reactive loads (down to 2 ohms/4 channel operation) and still allow
greater than 2 dB IHF dynamic headroom.
All gain devices are biased by regu-
lated active current sources, so that even low-frequency performance is
unaffected by supply-line noise and temperature fluctuations.
INSTALLATION
Proper
optimum performance.
especially for first timers.
installation and adjustment will reward you with reliable operation and
Automotive sound system installations can be tricky,
For this reason, you may want to consider using
a professional installer who has the tools and, more importantly. the experience,
to do the job right.If you decide to install your equipment yourself, we hope
that this manual will serve as a helpful guide.
Location and mounting
The first step in installation is thorough planning. Choose the location for
your amplifiercarefully. The amplifier should be located in either the passenger compartment or the trunk, never in the engine compartment or in any outside
location exposed to dirt and moisture.
Adequate ventilation is important; allow
enough space so that air can circulate around the heat sinks.
Make sure that the installed amplifier will not interfere with normal operation
of the car.
It is best not to locate the amplifier near your antenna. because
the switching power supply can interfere with AM reception.
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