impact LK 705 Owner's Manual page 4

5 Channel Amplifiers LK 705
Speaker wiring
Bridged
CH 1 CH 2
Sub
CH 3 CH 4
+
Sub woofer Speaker
Ch1 Ch2 Ch3
SPEAKER SPEAKER SPEAKER
Bridged speaker wiring
Bridged
CH 1 CH 2
Sub
CH 3 CH 4
+
Sub woofer Speaker
Ch1-2 Ch3-4
SPEAKER SPEAKER
Connect the NEGATIVE SPEAKER TERMINAL to the
RIGHT CHANNEL NEGATIVE AMPLIFIER TERMINAL.
Connect the POSITIVE SPEAKER TERMINAL to the
LEFT CHANNEL POSITIVE AMPLIFIER TERMINAL.
-6-
Batt Rem Gnd
Fuses
Power
GROUND
To REMOTE TURN-ON
from HEAD UNIT
To BATTERY
Ch4
SPEAKER
Batt Rem
Gnd
Fuses
Power
GROUND
To REMOTE TURN-ON
from HEAD UNIT
To BATTERY
SPEAKER
IMPEDAN CE
4 - 8 OHMS!
Tri-mode speaker wiring
Tri-Mode Speaker Wiring Two Channel Amplifier
Tri-Mode Operation is a unique feature which allows a two channel amplifier to drive a sub-woofer operated
in MONO mode, while simultaneously driving full range speakers in STEREO.
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 subwofer, as shown in the figure below. Pls review the table below
for inductor and capacitor component value, to determine the desired
crossover frequencies
+
LOW PASS
FILTER (INDUCTOR)
Bridged
CH 1 CH 2
Sub
CH 3 CH 4
+
Sub woofer Speaker
Ch1 Ch2
SPEAKER SPEAKER
SPEAKER
IMPEDAN CE
4 - 8 OHMS!
Component Values
for 6dB Passive Crossover
Frequency Inductor Capacitor
80Hz 7.5mH 470uF
100Hz 6.5mH 330uF
120Hz 5.5mH 330uF
150Hz 4mH 220uF
Connect the NEGATIVE SPEAKER TERMINAL to the
RIGHT CHANNEL NEGATIVE AMPLIFIER TERMINAL.
Connect the POSITIVE SPEAKER TERMINAL to the
LEFT CHANNEL POSITIVE AMPLIFIER TERMINAL.
SUBWOO FER MINIMUM
IMPEDAN CE 8 OHMS!
Batt Rem
Gnd
Fuses
Power
GROUND
To REMOTE TURN-ON
from HEAD UNIT
To BATTERY
Ch3 Ch4
SPEAKER SPEAKER
-7-