Sony DSX-M80 Operating Instructions - Page 18

• During full-power operation, a current of more than 15 A will run through the system. Therefore, make sure that the wires to be connected to the +12 V and GND terminals of this unit are at least 14-Gauge (AWG14) or have a sectional area of more than 2 mm² (3/32 in). When making the speaker parallel connection, use wires with more than 12-Gauge (AWG12) or wires that have a sectional area of more than 3.5 mm² (5/32 in). Less than 450 mm (18 in) Subwoofer direct connection You can use a subwoofer without a power amplifier when it is connected to a rear speaker lead. To enable the connection, set [SUBW MODE] in [SUBW DIRECT] to [1] to [3]. Front speaker Fuse (15 A) * +12 V boat battery If you have any questions or problems concerning the connection, consult the dealer for details. Memory hold connection When the yellow power supply lead is connected, power will always be supplied to the memory circuit even when the ignition switch is turned off. Connecting the speakers • Before connecting the speakers, turn the unit off. • Use speakers with a 2 Ω impedance or 4 Ω to 8 Ω impedance, and with adequate power handling capacities to avoid damage. Subwoofer Note Use a subwoofer with a 2 Ω impedance or 4 Ω to 8 Ω impedance, and with adequate power handling capacities to avoid damage. Speaker connection for high volume playback For high volume playback, you can connect front speaker in parallel. For this connection: - Set [SPEAKER LOAD] in [GENERAL] to [2 OHM]. - Connect the subwoofers to right and left rear speaker leads or use a dual voice coil subwoofer with 4 Ω to 8 Ω impedance. FL FR RR RL Front speaker (4 Ω to 8 Ω) Rear speaker (4 Ω to 8 Ω) Subwoofer (4 Ω to 8 Ω, dual voice coil type) Notes • When using a subwoofer with dual voice coil, or using subwoofer(s) by connecting to the right and left rear speaker leads, be sure to set [SPEAKER LOAD] in [GENERAL] to [2 OHM]. • To exert the speaker's potential, make the power connection to the battery directly (page 17). 18GB