Sound Storm Laboratories Amplifiers - Manual (Page 11)

Tri-Way Speaker Wiring
Tri-Mode Operational Output is a unique feature which allows a Crossover (Subwoofer) to
Be operated in MONO mode, while the main speakers are playing in STEREO.
To engage the amplifier in this mode, place the Crossover (Subwoofer) switch in the "OUT"
position. Use a 100v non-polar capacitor for a high pass crossover and a wire coil inductor
to block high frequencies from the Crossover (Subwoofer) as shown in the figure below.
Please review the table below for inductor and capacitor component values to determine
the desired crossover frequencies.
Four Channel Amplifiers:
S664, S804, S1004 and S1204 Amplifiers
To BATTERY
GROUND
To REMOTE OUTPUT
from HEAD UNIT
SUBWOOFER
LEFT SPEAKER
SUBWOOFER
LEFT SPEAKER
CH 1
SPEAKER
CH 3
SPEAKER
CH 2
SPEAKER
CH 4
SPEAKER
MINIMUM IMPEDANCE
8 OHMS!
MINIMUM IMPEDANCE
8 OHMS!
SPEAKER IMPEDANCE
4-8 OHMS!
SPEAKER IMPEDANCE
4-8 OHMS!
LOW PASS FILTER
INDUCTOR
LOW PASS FILTER
INDUCTOR
HIGH PASS FILTER
INDUCTOR
HIGH PASS FILTER
INDUCTOR
Component Values
for 6dB Passive Crossover
Frequency Inductor Capacitor
80Hz
100Hz
120Hz
152Hz 7.5mH
6.5mH
5.5mH
4mH 470uF
330uF
330uF
220uF
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