Pioneer Owner’s Manual Mode d’emploi BRIDGEABLE FOUR-CHANNEL POWER AMPLIFIER AMPLIFICATEUR DE PUISSANCE PONTABLE À QUATRE CANAUX GM-D8704 GM-DX874 English Français
Before you start Thank you for purchasing this PIONEER product FEDERAL COMMUNICATIONS COMMISSION SUPPLIER’S DECLARATION OFyou CONFORMITY If experience problems Product Name: Bridgeable Four-Channel Should this product fail to operate properly, Power Amplifier please contact your dealer or nearest authorModel Number: GM-D8704/GM-DX874 ized Pioneer Service Station. Responsible Party Name: PIONEER ELECTRONICS (USA) INC. SERVICE SUPPORT DIVISION Visit our Address: 2050website W.
Before you start Learn about product updates (such as firmware updates) for your product. your product toTHE receive notices about BE Register SURE TO OBSERVE FOLLOWING product updates and to safeguard purchase GUIDELINES: ourup files in volume the eventsoofhigh loss that or theft. ! details Do notin turn the you Access owner’s manuals, spare parts inforcan’t hear what’s around you. service information,discontinue and much use ! mation, Use caution or temporarily more.
Before you start Setting the unit The Always disconnect the negativeplaced terminal ! graphical symbol on theof the battery beforehand to avoid the risk of elecproduct means direct current. tric shock or short circuit during installation. Do not attempt to disassemble or modify About the protection function unit. Doing so may result in fire, electric Thisthis product has protection function. When this shock or other malfunction.
Setting the unit due to excessive output, improper use or improper connection. ! When outputting high volume sound etc., this function cuts off the output for a few seconds as a normal function, but output is restored when the volume of the head unit is turned down. ! A cut in sound output may indicate improper setting of the gain control.
Setting the unit Connecting the units Connection diagram Signal waveform when outputting at high volume using amplifier gain control 7 !Maximum gain ! Normal gain • • • • • Equal power··· 8 2 Signal waveform Amplifier gain (normal) 3 6 Signal waveform 4 Amplifier gain (maximum) 5 9 If the signal waveform is distorted due to high output, even if the amplifier gain is raised, the output power will change only slightly.
Connecting the units 7 8 9 a b c d e f g h i j k Before connecting the amplifier The ground wires must be same size as the battery wire. Connect to metal body or chassis. Car stereo with RCA output jacks (sold separately) External output If only one input plug is used, do not connect anything to RCA input jack B. Connecting wire with RCA pin plugs (sold separately) RCA input jack A RCA input jack B Amplifier with RCA input jacks (sold separately) RCA output jack Outputs the signal input to CH A.
Connecting the units ! Do not install or use this amplifier by wiring speakers rated at 2 W (or lower) in parallel to achieve a 1 W (or lower) bridged mode (Diagram B). Amplifier damage, smoke, and overheating could result from improper bridging. The amplifier surface could also become hot to the touch and minor burns could result. To properly install or use a bridged mode and achieve a 2 W load, wire two 4 W speakers in parallel with Left + and Right * (Diagram A) or use a single 2 W speaker.
Connecting the units 1 2 3 4 Two-channel output (Stereo) 1 Left Right Speaker output A Speaker output B (Mono) Connections when using the RCA input jack Connect the car stereo RCA output jack and the RCA input jack of the amplifier. ! The RCA output jack of this unit outputs the signal that comes from The RCA input jack A. 2 1 Speaker output (Right) 2 Speaker output (Left) Four-channel / Three-channel output ! Slide INPUT SELECT (input select) switch to 4CH position.
Connecting the units 4 Notes ! If speaker input wires from a headunit are connected to this amplifier, the amplifier will automatically turn on when the headunit is turned on. When the headunit is turned off, the amplifier turns off automatically. This function may not work with some headunits. In such cases, please use a system remote control wire (sold separately).
Connecting the units ! Always use the recommended battery and ground wire, which is sold separately. Connect the battery wire directly to the car battery positive (+) terminal and the ground wire to the car body. ! Recommended wires size (AWG: American Wire Gauge) is as follows. The battery wire, the ground wire and the optional direct ground wire must be same size. ! Use a wire of 8 AWG to 16 AWG wire for the speaker wire.
Connecting the units Installation Connecting the speaker output terminals Before installing the amplifier 1 Use wire cutters or a utility knife to strip the end of the speaker wires to expose about 10 mm (3/8 in.) of wire and then twist the wire. ! 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.
Installation 3 Install the amplifier with the use of supplied tapping screws (4 mm × 18 mm (5/32 in. × 3/4 in.)). Attaching the Bass boost remote control Attach with tapping screws (3 mm × 10 mm (1/8 in. × 3/8 in.)) at an easily accessible location such as under the dashboard. 1 3 2 Tapping screws (3 mm × 10 mm (1/8 in. × 3/ 8 in.)) Example of installation on the floor mat or chassis 4 5 1 Tapping-screws (4 mm × 18 mm (5/32 in. × 3/4 in.)) 2 Drill a 2.5 mm (3/32 in.) diameter hole.
Additional information Specifications CEA2006 Specifications 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 ................................................
Register your product at Enregistrez votre produit au Registre su producto en http://www.pioneerelectronics.com in Canada au Canada en Canada http://www.pioneerelectronics.ca PIONEER CORPORATION 28-8, Honkomagome 2-chome, Bunkyo-ku, Tokyo 113-0021, JAPAN PIONEER ELECTRONICS (USA) INC. P.O. Box 1540, Long Beach, California 90801-1540, U.S.A. TEL: (800) 421-1404 PIONEER EUROPE NV Haven 1087, Keetberglaan 1, B-9120 Melsele, Belgium/Belgique TEL: (0) 3/570.05.11 PIONEER ELECTRONICS ASIACENTRE PTE. LTD.
