User manual JBL MA6004

[. . . ] We recommend listening at low or moderate levels while operating your boat. JBL accepts no liability for hearing loss, bodily injury or property damage resulting from the use or misuse of this product. IMPORTANT To get the best performance from your JBL marine amplifiers, we strongly recommend that installation be entrusted to a qualified professional. Although these instructions explain how to install these amplifiers in a general sense, they do not show specific installation methods that may be required for your particular application. [. . . ] Although these JBL marine amps are designed for use on a boat, they will not withstand submersion. If the amplifier is to be installed in an enclosed space, make sure there is sufficient air circulation for the amplifier to cool itself. Make sure that the amplifier is mounted securely using nuts and bolts or the supplied mounting screws. 2 INSTALLATION POWER CONNECTIONS The amplifier requires a reliable connection to the boat's electrical system in order to perform optimally. Please adhere to the following instructions carefully: Ground Connection Connect the amplifier's Ground (GND) terminal to the battery's negative terminal, using a ring terminal. Power Connection Connect a wire (see chart at right for appropriate gauge) directly to the positive battery terminal, and install an appropriate fuse holder within 18" of the battery terminal. Route the wire to the amplifier's location, and connect it to the amplifier's Positive (+12V) terminal. Be sure to use appropriate grommets whenever routing wires through a bulkhead or other obstruction. Failure to adequately protect the positive wire from potential damage may result in a fire. When you are done routing and connecting this wire, you may install the fuse at the battery. Remote Connection Connect the amplifier's Remote (REM) terminal to the source unit's Remote TurnOn lead using a minimum of 18-gauge wire. NOTE: If your source unit does not have a remote turn-on connection, connect the amplifier's (REM) terminal to a wire that provides +12V when the boat's accessories are on or when the key is switched on. NC +12V AMP REM NO Speaker Connections Refer to the application guides on the pages that follow. Wire Gauge Chart Amplifier Maximum Minimum Model Current Draw Wire Gauge MA6002 22A #8 AWG MA6004 40A #8 AWG These recommendations assume 10' ­ 12' wire runs. If your amplifier will be mounted farther than 12' from the boat's battery, use a larger gauge. Figure 1. Terminal connection end plate for MA6002. 3 APPLICATIONS ­ MA6004 The MA6004 can be set up for stereo 4-channel, 3-channel or bridged 2-channel operation, as shown in Figures 4 through 6. NOTE: For simplicity, Figures 4 through 6 do not show power, remote and input connections. Minimum speaker impedance for bridged operation is 4 ohms. Front Left Front Right Figure 4. MA6004 amplifier in 4-channel (stereo) operation to drive front and rear full-range speakers. Rear Left Rear Right Front Left Front Right Rear Left Rear Right Front Left Front Right Figure 5. MA6004 is set up for 3-channel operation to drive a set of full-range speakers and a subwoofer. Figure 6. MA6004 used in bridged 2-channel mode to drive a set of components or subwoofers. [. . . ] NOTE: After the source unit is on, blue LEDs (on the top panel) will light, indicating the amplifier is on. If not, check the wiring, especially the remote connection from the source unit. Also refer to the "Troubleshooting" guide. TROUBLESHOOTING SYMPTOM No audio (POWER LEDs are off) No audio (POWER LEDs are on) LIKELY CAUSE No voltage at BATT+ or REM terminals, or bad or no ground connection Amplifier is overheated SOLUTION Check voltages at amplifier terminals with VOM Make sure amplifier cooling is not blocked at mounting location; verify speaker-system impedance is within specified limits Check boat's battery charging system Check boat's charging system Amplifier may need service; see enclosed warranty card for service information Check INPUT LEVEL setting; or check speaker wires for shorts or grounds Remove speaker leads one at a time to locate shorted speaker or wire, then repair Check speaker connections for proper polarity No audio (POWER LEDs flash) Voltage more than 16V or less than 8. 5V on BATT+ connection Voltage less than 9V on BATT+ connection DC voltage on amplifier output Distorted audio Distorted audio and POWER LEDs flash Music lacks "punch" Input sensitivity is not set properly, or amplifier or source unit is defective Short circuit in speaker or wire Speakers are not connected properly 6 SPECIFICATIONS MA6004 · 60W RMS x 4 channels at 4 ohms and 1% THD + N · Signal-to-noise ratio: 80dBA (reference 1W into 4 ohms) · 80W RMS x 4 channels at 2 ohms, 14. 4V supply and 1% THD + N · 160W RMS x 2 channels at 4 ohms, 14. 4V supply and 1% THD + N · Dynamic power: 145W at 2 ohms · Effective damping factor: 6. 395 at 4 ohms · Frequency response: 10Hz ­ 27kHz (­3dB) · Maximum input signal: 6V · Maximum sensitivity: 100mV · Output regulation: ­ 0. 03dB at 4 ohms · Dimensions (L x W x H): 13-1/4" x 10-1/4" x 2-3/16" (337mm x 261mm x 56mm) · Fuses: 25A x 2 MA6002 · 60W RMS x 2 channels at 4 ohms and 1% THD + N · Signal-to-noise ratio: 84dBA (reference 1W into 4 ohms) · 80W RMS x 2 channels at 2 ohms, 14. 4V supply and 1% THD + N · 160W RMS x 1 channel at 4 ohms, 14. 4V supply and 1% THD + N · Dynamic power: 160W at 2 ohms · Effective damping factor: 6. 395 at 4 ohms · Frequency response: 10Hz ­ 27kHz (­3dB) · Maximum input signal: 6V · Maximum sensitivity: 100mV · Output regulation: ­ 0. 03dB at 4 ohms · Dimensions (L x W x H): 9" x 10-1/4" x 2-3/16" (229mm x 261mm x 56mm) · Fuses: 25A x 1 A valid serial number is required for warranty coverage. Features, specifications and appearance are subject to change without notice. 7 Declaration of Conformity JBL Consumer Products 250 Crossways Park Drive Woodbury, NY 11797 USA www. jbl. com © 2006 Harman International Industries, Incorporated. [. . . ]