Connecting the units 2 Use wire cutters or a utility knife to strip the end of the battery wire, ground wire and system remote control wire to expose about 10 mm of the end of each of the wires, and then twist the exposed ends of the wires. Twist Connecting the speaker output terminals 1 Use wire cutters or a utility knife to strip the end of the speaker wires to expose about 10 mm of wire and then twist the wire. Twist 10 mm 3 Connect the wires to the terminal. Fix the wires securely with the terminal screws. 7 6 2 4 1 3 5 1 Battery wire 2 Power terminal 3 Ground wire 4 GND terminal 5 System remote control wire 6 System remote control terminal 7 Terminal screws 10 mm 2 Connect the speaker wires to the speaker output terminals. Fix the wires securely with the terminal screws. 1 3 2 1 Terminal screws 2 Speaker wires 3 Speaker output terminals En Installation Before installing the amplifier WARNING ! To ensure proper installation, use the supplied parts in the manner specified. If any parts other than those supplied are used, they may damage internal parts of the amplifier, or become loose causing the amplifier to shut down. ! Do not install in: — Places where it could injure the driver or passengers if the vehicle stops suddenly. — Places where it may interfere with the dri- ver, such as on the floor in front of the driver’s seat. ! Install tapping screws in such a way that the screw tip does not touch any wire. This is important to prevent wires from being cut by vibration of the car, which can result in fire. ! Make sure that wires do not get caught in the sliding mechanism of the seats or touch the legs of a person in the vehicle as short-circuit may result. ! When drilling to install the amplifier, always confirm no parts are behind the panel and protect all cables and important equipment (e.g. fuel/brake lines, wiring) from damage. Example of installation on the floor mat or chassis 1 Place the amplifier in the desired installation location. Insert the supplied tapping screws (4 mm × 18 mm) into the screw holes and push on the screws with a screwdriver so they make an imprint where the installation holes are to be located. 2 Drill 2.5 mm diameter holes at the imprints either on the carpet or directly on the chassis. 3 Install the amplifier with the use of supplied tapping screws (4 mm × 18 mm). 1 3 2 CAUTION ! To ensure proper heat dissipation of the ampli- fier, ensure the following during installation: — Allow adequate space above the amplifier for proper ventilation. — Do not cover the amplifier with a floor mat or carpet. ! Place all cables away from hot places, such as near the heater outlet. ! The optimal installation location differs de- pending on the car model. Secure the amplifier at a sufficiently rigid location. ! Check all connections and systems before final installation. ! After installing the amplifier, confirm that the spare tire, jack and tools can be easily removed. 4 5 1 Tapping-screws (4 mm × 18 mm) 2 Drill a 2.5 mm diameter hole 3 Floor mat or chassis 4 Hole-to-hole distance: 229.5 mm (GM- D8704) / 279.5 mm (GM-D9704) 5 Hole-to-hole distance: 191.5 mm En Additional information Specifications GM-D8704 Power source . 14.4 V DC (10.8 V to 15.1 V allowable) Grounding system . Negative type Current consumption . 29 A (at continuous power, 4 W) Average current consumption . 3.1 A (4 W for four channels) 4.4 A (4 W for two channels, BRIDGE) 4.4 A (2 W for four channels) Fuse . 30 A × 2 Dimensions (W × H × D) . 252 mm × 60 mm × 215 mm Weight . 2.5 kg (Leads for wiring not included) Maximum power output . 200 W × 4 (4 W) / 600 W × 2 (4 W) BRIDGE / TOTAL 1 200 W (300 W × 4) Continuous power output . 100 W × 4 (at 14.4 V, 4 W, 20 Hz to 20 kHz, ≦ 1 % THD) 150 W × 4 (at 14.4 V, 2 W, 1 kHz, ≦ 1 % THD) 125 W × 4 (at 14.4 V, 1 W, 1 kHz, ≦ 1 % THD) 300 W × 2 (at 14.4 V, 4 W BRIDGE, 1 kHz, ≦ 1 % THD) 250 W × 2 (at 14.4 V, 2 W BRIDGE, 1 kHz, ≦ 1 % THD) Load impedance . 4 W (1 W to 8 W allowable) Frequency response . 10 Hz to 50 kHz (+0 dB, –3 dB) Signal-to-noise ratio . 95 dB (IEC-A network) Distortion . 0.05 % (10 W, 1 kHz) Low pass filter: Cut off frequency . 40 Hz to 500 Hz Cut off slope . –12 dB/oct High pass filter: Cut off frequency . 40 Hz to 500 Hz Cut off slope . –12 dB/oct Gain control: RCA . 200 mV to 6.5 V Speaker . 0.8 V to 16 V Maximum input level / impedance: RCA . 6.5 V / 25 kW Speaker . 16 V / 12 kW GM-D9704 Power source . 14.4 V DC (10.8 V to 15.1 V allowable) Grounding system . Negative type Current consumption . 39 A (at continuous power, 4 W) Average current consumption . 4.0 A (4 W for four channels) 5.7 A (4 W for two channels, BRIDGE) 5.7 A (2 W for four channels) Fuse . 40 A × 2 Dimensions (W × H × D) . 302 mm × 60 mm × 215 mm Weight . 2.9 kg (Leads for wiring not included) Maximum power output . 260 W × 4 (4 W) / 800 W × 2 (4 W) BRIDGE / TOTAL 1 600 W (400 W × 4) Continuous power output . 130 W × 4 (at 14.4 V, 4 W, 20 Hz to 20 kHz, ≦ 1 % THD) 200 W × 4 (at 14.4 V, 2 W, 1 kHz, ≦ 1 % THD) 130 W × 4 (at 14.4 V, 1 W, 1 kHz, ≦ 1 % THD) 400 W × 2 (at 14.4 V, 4 W BRIDGE, 1 kHz, ≦ 1 % THD) 260 W × 2 (at 14.4 V, 2 W BRIDGE, 1 kHz, ≦ 1 % THD) Load impedance . 4 W (1 W to 8 W allowable) Frequency response . 10 Hz to 50 kHz (+0 dB, –3 dB) Signal-to-noise ratio . 95 dB (IEC-A network) Distortion . 0.05 % (10 W, 1 kHz) Low pass filter: Cut off frequency . 40 Hz to 500 Hz Cut off slope . –12 dB/oct High pass filter: Cut off frequency . 40 Hz to 500 Hz Cut off slope . –12 dB/oct Gain control: RCA . 200 mV to 6.5 V Speaker . 0.8 V to 16 V Maximum input level / impedance: RCA . 6.5 V / 25 kW Speaker . 16 V / 12 kW Notes ! Specifications and the design are subject to modifications without notice. ! The average current consumption is nearly the maximum current consumption by this unit when an audio signal is input. Use this value when working out total current con- sumption by multiple power amplifiers. En
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