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SPEAKER CONNECTIONS
(SPA90.2 , SPA90.4 , SPA150.4)
Make the speaker connections using speaker wire that is at least 16
gauge or heavier.
As with any audio component, proper phasing of the amplifier and speakers is essential
for strong bass response. When connecting, make sure that positive (+) from the amplifier
is connected to the positive (+) of the speaker, and the same for negative (-).
***CAUTION! In the bridged mode, the amplifier must see a 4 Ohm load or higher. Any
lower than 4 ohms will cause the amplifier to overheat and possible cause permanent
damage to the amplifier!
REMOTE BASS CONTROL MODULE
(SPA1000D, SPA1300D, SPA1600D, SPA1900D Included)
Before connecting the remote, it will be necessary to find a mounting location that will be
easy to access for adjustment. Once you select your mounting location, you will need to run
the control wire from the remote to the amplifier. To avoid possibility of induced noise from
the car’s electrical system (i.e. popping noises or engine noise), run the cable from the
remote to the amplifier away from the car’s electrical wiring.
speaker output
power
fuses rem gnd+12v
protect
(-) ------ bridged ------ (+)
R (-) R (+) L (-) L (+)
ch4- ch4+ ch3- ch3+ ch2- ch2+ ch1- ch1+
speaker output
power
fuses
protect
rem gnd+12v
(-) ---- bridged ---- (+) (-) ---- bridged ---- (+)
speaker output
power
fuses rem gnd+12v
protect
(-) ------ bridged ------ (+)
R (-) R (+) L (-) L (+)
+
-
+
-
+
-
+
-
+
-
4 Ohm Speaker
4 Ohm Speaker
4 Ohm Speaker
4 Ohm Speaker
4 Ohm Speaker
4 Ohm Speaker
4 Ohm Speaker
4 Ohm Speaker
4 Ohm Speaker
ch4- ch4+ ch3- ch3+ ch2- ch2+ ch1- ch1+
speaker output
power
fuses
protect
rem gnd+12v
(-) ---- bridged ---- (+) (-) ---- bridged ---- (+)
freq
x-over
input
level
input
bass
boost
0dB 18dB
bass
boost
0dB 18dB60Hz 400Hz
freq
60Hz 400Hz
low full high
x-over
remote
low full high
ch 1 ch 3
ch 2 ch 4
min max
input
level
min max
spa90.4
classAB 4 channel amplifier
POWER
Min
Max
+
-
+
-
+
- -
+