SOUNDSTREAM Car Audio System RSM4.1200D Owner’s Manual

RSM4.1200D
_____ **CAR AUDIO SYSTEM__**

PLEASE READ CAREFULLY BEFORE INSTALLING OR OPERATED THIS UNIT

____WARNING ____

Make sure you choose a suitable piece to mount the unit. The position should be completely dry with
a good circulation of air, and from a mechanical point of view very stable.

System Planning

Proper system planning is the best way to maximize your amplifier performance. By planning your installation carefully you can avoid situations where the performance of the reliability of your system is compromised. Your authorized dealer has been trained to maximize your system’s sonic potential. Your dealer is a valuable resource in helping you with your system design and installation.

Speaker Requirements

Each channel of your amplifier can easily drive 40 speaker loads when used in the stereo mode. When a channel-pair is bridged,

the recommended minimum load impedance is 30 for subwoofer use, and 40 for full range operation. Although operation with lower impedances is not likely to cause immediate damage to the internal circuitry, the unit will most likely overheat, causing the thermal protection circuitry to shut down the amplifier. When the chassis cools down, normal operation will resume. Continuing to operate the amplifier under these conditions is not recommended and will reduce its life expectancy.

Most speakers designed for car audio operation are 40 impedance. Connecting two such speakers in parallel will result in a 20 impedance load as seen by the amplifier. Some subwoofer models feature a dual 40 voice coil design. Connecting these voice coils in parallel will result in a 20 nominal Impedance, which is not recommended for use with bridged channels of your amplifier.

known working speakers and repair or replace as needed
poor bass response| speakers wired wrong

polarity causing cancellation at low frequencies
crossover set incorrectly

| check speaker polarity and repair as needed reset crossovers referring to the multi-cross crossover configuration section of this manual for detailed Instructions
battery fuse blowing| impedance load to amplifier too low
short in power wire or incorrect power connections
fuse used is smaller than recommended
too much current being drawn
short in power wire or incorrect| check speaker impedance load, if below 20 stereo or 40 mono rewire speakers to achieve a higher Impedance

check power and ground connections and repair as needed
replace with proper fuse size check speaker impedance load, if below 20 stereo or 40 mono rewire speakers to achieve a higher impedance check power and ground connections and repair as needed

amplifier fuse blowing| too much current being drawn fuse used is smaller than recommended| check speaker impedance load, if below 20 stereo or 40 mono rewire speakers to achieve a higher Impedance check power and ground connections and repair as needed  replace with proper fuse size

Trouble Shooting

Symptom
no output| Possible Cause

low or no remote turn-on input use blown power wires not connected audio Input not connected or no output from source

speaker wires not connecte

| check remote turn•on voltage output at amplifier and correct as needed check power wire Integrity and reversed polarity ,repair as needed and replace fuse check power wire and ground connections and repair of replace as needed check Input connections and signal integrity, repair or replace as needed check speaker wires and repair or replace as needed
audio cycles on and of| audio Input not connected or no output from source

speaker wires not connected

thermal protection engages when amplifier heatslnk temperature exceeds 90’C

loose or poor audio input

| check Input connections and signal integrity, repair or replace as needed check speaker wires and repair or replace as needed check system with known working speaker and repair or replace speakers as needed make sure there Is proper ventilation for amplifier and Improve ventilation as needed check input connections and repair or replace as needed
distorted output

| amplifier level sensitivity set too high; exceeding maximum output capability of amplifier

Impedance load to amplifier too low

shorted speaker wires

speaker not connected to amplifier properly

| check input connections and repair or replace as needed

reset gain referring to the tuning section of the manual for detailed Instructions

check speaker Impedance load if below 2 0 stereo or 4 0 mono rewire speakers to achieve a higher impedance

check speaker wire connections and repair or replace as needed check speaker wiring and repair of replace as needed refer to the installation section of this manual for detailed instructions

**Power Connection Leads

** Notes on the power supply

Connect the + I 2V power Input lead only after all other leads have been connected. Be sure to connect the ground wire of the unit securely to a metal part of the car. A lose
the connection may cause a malfunction of the amplifier.
REMOTE: The unit is turned on by applying +12Volts to this terminal This terminal does not draw heavy current like the two power terminal so a thinner connecting wire Is acceptable. Standard 18 GAUGE is fine and the standard colour is yellow. If the radio is equipped with a power antenna control wire, it can drive this terminal. If the power antenna wire is already in use, you can still splice it. With this method, the unit will turn on automatically with the radio. Use the power supply lead with a fuse attached whose value is the same as the original fuse.  Place the fuse In the power supply lead as close as possible to the car battery.
During a full-power operation, Maximum current will run through the system. Therefore, Make sure that the leads to be connected to the + I 2v and GND terminals of the unit respectively must be larger than 10-Gauge lAWG.10).

Specifications

RSM4.1200D
75wx4@4-ohm Stereo
110wx4@2-ohm Stereo
220wx2@4-ohm Bridged
1200w MAX Power
Variable 35-250Hz 12dB High Pass Filter
Variable 35-250Hz 12dB Low Pass Filter
Total Harmonic Distortion: 0.05%@4-ohm
Frequency Response: 20- +20KHz
Signal-to-noise Ratio: 90dB
Channel Separation: 51dB
Input Sensitivity: 250mV-6V
Dimensions. 3.75Nwx1.75’hx6.751

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