Tri-Mode 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.

Two Channel Amplifiers:

D400.2, D650.2 and D1000.2 Amplifiers

LOW PASS FILTER INDUCTOR

HIGH PASS FILTER CAPACITORS

MINIMUM IMPEDANCE

8 OHMS!

Component Values

for 6dB Passive Crossover

Frequency	Inductor	Capacitor
80Hz	7.5mH	470uF
100Hz	6.5mH	330uF
120Hz	5.5mH	330uF
152Hz	4mH	220uF

SUBWOOFER

GROUND

To REMOTE OUTPUT from HEAD UNIT

To BATTERY

LEFT

SPEAKER

RIGHT

SPEAKER

SPEAKER IMPEDANCE

4-8 OHMS!