20
INSTALLATION AND MOUNTING
1. AMPLIFIER LOCATION
The REFERENCE amplifiers employ highly efficient circuitry and a unique
Chassisink
TM
design to maintain lower operating temperatures. Additional
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
Set the Coherent Stereo
TM
/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 13 - 16). 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
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.
INSTALLATION STEP 4
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 the previous
5
drive virtually any load—all the way down to 1/2 ohm stereo (1 ohm
mono).
•
Dual Discrete Class A Drive Stages - Over six times the drive
current of most amplifiers in the Reference500s and 700s, and over
twelve times in the Reference1000s! More drive current maintains
the amplifiers' performance into low impedance loads.
•
Drive Delay
TM
Muted Turn-on/off Circuit - A unique circuit which
completely eliminates any amplifier-related turn-on/off noises.
•
Flexible Dual Input Level Sensitivity accepts 2 voltage ranges;
from 200 mV to 2.0 V and from 500 mV to 5.0 V, permitting
maximum output from the amplifier with virtually any source unit.
•
Differential Balanced Input Design for added immunity to noise
caused by component and vehicle electrical system interaction when
using Unbalanced RCA inputs.
•
True Balanced Input for professional-quality performance and noise
cancellation. The 6-pin din plug carries (+) and (-) Signal information
for Left and Right channels, audio ground, and ±15 Vdc to operate
the Soundstream BLT Balanced Line Transmitter.
•
AIRBASS™ Upgradable - This feature allows RF remote control
level adjustment while the low pass filter on the amplifiers' internal
crossover is being used.
•
LSE.Q (Reference1000s) - Fully adjustable subwoofer equalization
circuit providing frequency and level "Q" adjustment for optimum
subwoofer performance. A frequency tracking subsonic filter protects
woofers from potentially harmful low frequency information and
maximizes output in a usable range.