Boss Evolution EV1500M User Manual page 11

Power and Speaker Wiring
Tri-Mode
Tri-mode operation allows you to connect this amplifier to a pair of main speakers plus
a subwoofer on one pair of output channels. The main speakers will operate in STEREO
while the subwoofer simultaneously operates in MONO.
To set up the amplifier to run in this mode, put the crossover switches in the FULL position.
Insert high pass filter capacitors and a low pass filter inductor into the wiring as shown
below. Be sure to check the table at the bottom of this page to determine the correct
capacitor and inductor values for the crossover frequency you wish to achieve.
Tri-Mode
CONNECTIONS
to REMOTE TURN-ON
terminal of head unit
GROUND REMOTE
POWER
E V O L U T I O N
Chassis
ground
point
FUSE
Battery
MINIMUM
SPEAKER
IMPEDANCE
4 OHMS
EV2.1000, EV2.1200, EV2.1600,
EV2.2000, EV2.2600, and EV2.3000
Component values for
6dB Passive Crossover
FREQUENCY INDUCTOR CAPACITOR
80 Hz
100 Hz
120 Hz
150 Hz
BATT +
FUSES
High pass filter
crossover
LEFT
Speaker
High pass filter
crossover
RIGHT
Speaker
Low pass
filter inductor
Subwoofer
EVOLUTION MOSFET Amplifier User's Manual - page 11
2-Channel Amplifiers 2-Channel Amplifiers
7.5mH 470uF
6.5mH 330uF
5.5mH 330uF
4mH 220uF
L R
SPEAKER
CONNECTIONS
BRIDGED MODE
SPEAKER
IMPEDANCE
8 OHMS