Dual Tri-Mode Speaker Wiring
To engage the amplifier in this mode, place the Crossover (Subwoofer)
switch in the "FULL" position. Use a 100v non-polar capacitor for a high
pass crossover and a wire coil inductor to block high frequencies from
the Subwoofer, as shown in the figure below. Please review the table
below for inductor and capacitor component values to determine the
desired crossover frequencies.
Component Values
for 6dB Passive Crossover
Component Values
for 6dB Passive Crossover
Frequency Inductor Capacitor
80Hz 7.5mH 470uF
100Hz 6.5mH 330uF
120Hz 5.5mH 330uF
150Hz 4mH 220uF
++
++
SUBWOOFER
SPEAKER IMPEDANCE
4 - 8 OHMS!
SPEAKER
IMPEDANCE
4 - 8 OHMS!
++
++
CH 1
SPEAKER
CH 2
SPEAKER
SUBWOOFER MINIMUM
IMPEDANCE 8 OHMS!
HIGH PASS
FILTER (CAPACITORS)
LOW PASS
FILTER (INDUCTOR)
++
++
HIGH PASS
FILTER (CAPACITORS)
LOW PASS
FILTER (INDUCTOR)
CH 3
SPEAKER
CH 4
SPEAKER
SUBWOOFER
SUBWOOFER MINIMUM
IMPEDANCE 8 OHMS!
Tri-Mode Operation is a unique feature which allows two channel of
an amplifier to drive a subwoofer operated in MONO mode, while
simultaneously driving full range speakers in STEREO.
To REMOTE TURN-ON
from HEAD UNIT
Before you drill or cut any holes, investigate your car's layout very carefully. Take care when
you work near the gas tank, fuel lines, hydraulic lines and electrical wiring.
Do not operate the amplifier when it is not mounted. Attach all audio system components
securely within the automobile to prevent damage, especially in case of an accident.
Precautions
Do not mount this amplifier so that the wire connections are unprotected or in a pinched
condition, or likely to be damaged by nearby objects.
Before making or breaking power connections in your system, disconnect the vehicle battery.
Confirm that your head unit or other equipment is turned off while connecting the input jacks
and speaker terminals.
If you need to replace the power fuse, replace it only with a fuse identical to that supplied with the system.
Using a fuse of different type or rating may result in damage to your system which isn't covered by the
manufacturer's warranty.
Confirm that all terminal strip connections are secure and tight.
Check both in-line and built-in fuses. Both the "+12V" and the "REMOTE" terminals
must have +12V referenced to chassis ground.
Check the "BALANCE" control on the head unit (or other source) to verify that it
is set to its midpoint.
If you are using the Low Level RCA Inputs, reverse the input plugs at the amplifier
(switches the R with the L). If the channel which is silent switches to other side,
the problem is either in the head unit/other source or the connecting tables.
If the noise is a "whine" whose pitch follows the engine speed, confirm that the
amplifier and any other signal sources ( head unit, etc.) are properly grounded.
If the noise is a "clicking" or "popping" noise whose rate follows the engine speed, this
usually means that the vehicle is equipped with resistor spark plugs and wires, or that
the ignition is in need of service.
Troubleshooting
Before removing your amplifier, refer to the list below and follow the suggested
procedures. Always test the speakers and their wires first.
No Output
Confirm that the audio signal source (car radio, equalizer, etc.) is connected and is
supplying output signal. To check if the amplifier is supplying signal, unplug the RCA
cables from the signal source (but leave them plugged into the amp). Gently tap the
center pin of each of the disconnected RCA plugs with your finger. This should
produce a noise (feedback) in your speakers.
Only one
channel
works
Confirm that all speaker strip connections are secure and tight.
Weak Output
Readjust the Input Sensitivity Control to better suit the input signal.
Noise in the
Audio
Check the routing of the speaker and input wires to make sure they are not adjacent to
wires which interconnect lights and other accessories.
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