Installation And Mounting; Wiring Diagram - Soundstream Reference Series 644S Installation Manual

(Continued from page 11)
event of blown power supply fuses, the "Fault" indicator on the top panel will
light. The fuses are accessible via a plastic plug on the bottom of the
amplifier. See the chart below to determine the fuse value. Never replace
REFERENCE644s Amplifier Fuse Values
Amplifier Amplifier Fuse
REFERENCE644s (2) 30 amp automotive
REMOTE TURN-ON
Connect the "Remote" to the turn-on lead from the source unit. When +12
volts is received, the amplifier will turn on.
SIGNAL CABLE
Use a high-quality cable that will be easy to install and has minimal signal loss
to guarantee optimum performance.
ideal when using the Unbalanced RCA inputs. While using the Balanced DIN
input, use the cable supplied with the BLT.
SPEAKER CABLE
The REFERENCE amps will accept up to 8 gauge speaker cable. Use a high
quality, flexible, multi-strand cable for best performance and longevity.

WIRING DIAGRAM

Battery Fuse /
Circuit Breaker
80 amp
Soundstream's DL1 and SL1 are
12
INSTALLATION STEP 4

INSTALLATION AND MOUNTING

1. AMPLIFIER LOCATION
The REFERENCE644s amplifier employs highly efficient circuitry and a unique
TM
Chassisink design to maintain lower operating temperatures.
cooling may be required if the amplifier is located in a tightly confined area or
when driving especially low impedance loads at extremely high levels.
When mounting the amplifier, it should be securely mounted to either a panel
in the vehicle or an amp board or rack that is securely mounted to the vehicle.
The mounting location should be either in the passenger compartment or in the
trunk of the vehicle, away from moisture, stray or moving objects, and major
electrical components. To provide adequate ventilation, mount the amplifier so
that there are at least two inches of freely circulating air above and to the sides
of it.
2. SWITCHES
TM
Set the Coherent Stereo /Mixed-Mono/Bridged Mono and Amplifier crossover
switches on the bottom of the amplifier to the appropriate positions before
bolting down the amplifier (see pages 16 - 21). Be sure to replace the hole
plugs.
3. MOUNTING THE AMPLIFIER
a. Using the amplifier as a template, mark the mounting surface.
b. Remove the amplifier and drill the holes.
c. Mount the amplifier to the surface using the provided hardware.
4. WIRING
a. Run and connect the audio signal and remote turn-on cables to the
amplifier from the source unit.
b. Carefully run the positive cable from the amplifier to a fuse or circuit
breaker within 18" of the battery.
c. Connect the fuse or circuit breaker to the battery. Leave the circuit breaker
off or the fuse out until everything is bolted down.
d. Secure the ground cable to a solid chassis ground on the vehicle. It may
NOTE: There may be a sizable spark when connecting the power and ground
lead to the amplifier for the first time. Please see the comment on page 11 for
be necessary to sand paint down to raw metal for a good connection.
e. Double check each and every connection!
f. Re-connect the fuse or circuit breaker.
Additional
13