Boss Audio PH1500M User Manual in English - Page 11

Power and Speaker Wiring 2-Channel Amplifiers Tri-Mode PH2.500, PH2.600, PH2.800, PH2.1000, PH2.1300, and PH2.1500 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 Component values for 6dB Passive Crossover FREQUENCY INDUCTOR CAPACITOR 80 Hz 100 Hz 120 Hz 150 Hz 7.5mH 6.5mH 5.5mH 4mH 470uF 330uF 330uF 220uF L R SPEAKER CONNECTIONS BRIDGED MODE FUSES +12V GND REMOTE POWER CONNECTIONS High pass filter crossover MINIMUM SPEAKER IMPEDANCE 4 OHMS LEFT Speaker RIGHT Speaker High pass filter crossover Low pass filter inductor Subwoofer SPEAKER IMPEDANCE 8 OHMS Chassis ground point to REMOTE TURN-ON terminal of head unit FUSE Battery PHANTOM MOSFET Amplifier User's Manual - page 11