Sony DSX-GS900 Operating Instructions - Page 13

Subwoofer Easy 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 Installing the microphone To capture your voice during handsfree calling, you need to install the microphone . 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 Parallel Connection When making the speaker parallel connection for a high volume playback, be sure to: - Set [SPKR LOAD] in [GENERAL] to [2 OHM]. 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 a subwoofer by connecting the right and left rear speaker leads, be sure to set [SPKR LOAD] in [GENERAL] to [2 OHM].  To exert the speaker's potential, make the power connection to the battery directly (page 12).  Clip (not supplied)    Cautions  It is extremely dangerous if the cord becomes wound around the steering column or gearstick. Be sure to keep it and other parts from interfering with your driving operations.  If airbags or any other shock-absorbing equipment is in your car, contact the store where you purchased this unit, or the car dealer, before installation. Notes  When mounting on the dashboard, remove the visor clip carefully from the microphone , then attach the flat-mount base  to the microphone .  Before attaching the double-sided tape , clean the surface of the dashboard with a dry cloth. 13GB