JBL A600 Marine and Marine Amplifiers Owner’s Manual

June 1, 2024
JBL

JBL A600 Marine and Marine Amplifiers

JBL-A600-Marine-and-Marine-Amplifiers-fig-1

Product Information

Specifications:

  • Model: Marine A600 and Marine A1000 Amplifiers
  • Fuse: A600 – 30A, A1000 – 35A
  • Bass Boost: 12dB
  • Frequency Range: 32Hz – 320Hz
  • Remote Control: Included
  • Input Voltage: +12V

Product Usage Instructions

Accessing Connectors and Control Panel:

  1. Pry off the trim piece to access the input level and turn-on mode.
  2. Slide down the panel cover to reveal front and sub controls.
  3. Remove the panel cover to access all settings including HPF, LPF, phase, and frequency adjustments.

Mounting the Amp:
Note:
Make all wire connections before permanently mounting the amp.

Wiring for Power and Ground:
Make sure to connect the +12V, REM, and GND properly using the recommended fuse. Follow instructions for wiring high-level and low-level signals.

Connecting Two Marine A1000 Amplifiers for Extra Power:
Use an RCA patch cable to connect the amplifiers and set the Primary/Secondary switch accordingly.

Wiring for Input Signal:
Follow instructions for wiring low-level signals from stereo subwoofer outputs.

Wiring for Audio Output:
Instructions for connecting one subwoofer, two subwoofers, or strapping two amplifiers together to one subwoofer.

Connecting the Remote Bass Controller:
Follow guidelines for connecting and using the remote bass controller for added convenience.

FAQ

What should I do if there is no sound playing?
If using high-level signals, ensure the switches are set correctly. If no sound plays, adjust the switch settings accordingly.

WHAT’S IN THE BOX

Marine A600

JBL-A600-Marine-and-Marine-Amplifiers-fig-2

Marine A1000

JBL-A600-Marine-and-Marine-Amplifiers-fig-3

ACCESSING CONNECTORS AND CONTROL PANEL

  1. Pry off trim piece

JBL-A600-Marine-and-Marine-Amplifiers-fig-4

  1. Slide the panel cover down

JBL-A600-Marine-and-Marine-Amplifiers-fig-4

  1. Remove panel cover

JBL-A600-Marine-and-Marine-Amplifiers-fig-6

MOUNTING THE AMP

Note: It is recommended that you make all wire connections before permanently mounting the amp.

JBL-A600-Marine-and-Marine-Amplifiers-fig-7

IMPORTANT: Disconnect the negative (–) battery terminal of the accessory battery before beginning the installation.

  • Always wear protective eyewear when using tools.
  • Choose a safe mounting location. Check clearances on both sides of a planned mounting surface. Be sure that screws or wires will not puncture the vessel hull, fuel lines, or wiring harnesses, and that wire routing will not interfere with the safe boat operation. Use caution when drilling or cutting in the mounting area.
  • Choose a location that provides enough air circulation.
  • Do not mount the amplifier with the heat sink facing downward, as this interferes with cooling.
  • Mount the amplifier so that it will not be damaged by the feet of passengers or shifting cargo.

WIRING FOR POWER AND GROUND

At amplifier:

At ground location:

JBL-A600-Marine-and-Marine-Amplifiers-fig-9

WIRING FOR INPUT SIGNAL

Low-level signals

Note: when using low-level signals and remote turn-on lead, set the ” ” switch to ” ” and the ” switch to ” “.

High-level signals

JBL-A600-Marine-and-Marine-Amplifiers-fig-12

Note: when using high-level signals, set the ” ” switch to ” ” and the ” ” switch to ” “. If no sound plays, change the ” ” switch to ” “.

CONNECTING TWO MARINE A1000 AMPLIFIERS FOR EXTRA POWER

To connect two Marine A1000 amplifiers, use an RCA patch cable to connect the “PRIMARY OUT” of the primary amplifier to the “SECONDARY IN” of the secondary amplifier. Set the Primary/ Secondary switch to “PRIMARY” on the primary amplifier, and to “SECONDARY” on the secondary amplifier.

JBL-A600-Marine-and-Marine-Amplifiers-fig-13

WIRING FOR AUDIO OUTPUT

One subwoofer (4ohm/2ohm)

Two subwoofers (4ohm)

JBL-A600-Marine-and-Marine-Amplifiers-fig-15

Two amplifiers strapped together to one subwoofer (minimum 4 ohm)
NOTICE: When strapping, the panel GAIN, FREQ, PHASE and BASSBOOST controls are non-functional on the Secondary Amp. All adjustments are made on the Primary Amp.

CONNECTING THE REMOTE BASS CONTROLLER

JBL-A600-Marine-and-Marine-Amplifiers-fig-17

SETTING GAIN, CROSSOVERS, AND BASS BOOST

Setting the gain

  1. Start with GAIN control set to minimum, and the crossover control rotated midway.
  2. Choose music with substantial bass content.
  3. Turn the volume control on your receiver to ¾ of its total output.
  4. Adjust the GAIN control clockwise, listening carefully to the bass output. If you hear distortion, turn the GAIN control counterclockwise to decrease the gain.

Selecting the crossover frequency
Choose the crossover point to suit listening preferences. Turn the dials to the left to lower the crossover point and to the right to raise the crossover point. Exact crossover settings depend on your listening preferences.

Selecting the subwoofer phase
Switch the PHASE back and forth to determine which setting provides the most clean bass output.

Selecting the bass boost
Adjust the BASE-BOOST control clockwise or counterclockwise to suit your taste.

SPECIFICATIONS

  Marine A600 Marine A1000
Power output @ 4 ohms (14.4V) 350 watts RMS x 1 600 watts RMS x 1
Power output @ 4 ohms (12V) 275 watts RMS x 1 475 watts RMS x 1
Power output @ 2 ohms (14.4V) 600 watts RMS x 1 1000 watts RMS x 1
Power output @ 2 ohms (12V) 410 watts RMS x 1 690 watts RMS x 1
power output @4ohm strapping (14.4V) NA 1900 watts RMS x 1 (Two amplifiers)
Max Power 1200 watts 2000 watts
Frequency response 25-320 Hz 25-320 Hz
Crossover frequencies 32-320 Hz variable,

12 dB/octave

| 32 -320 Hz variable

12 dB/Octave

Line-level input sensitivity| 200 mVrms – 4 Vrms| 200 mVrms – 4 Vrms
High-level input sensitivity| 1 – 22 Vrms| 1 – 22 Vrms
Signal-to-noise ratio| >80 dB| >80 dB
THD+N @ rated power| <1%| <1%
Fuse rating| 30 A x 2| 35 A x 3
Dimensions (W x H x D)| 8-11/16″ x 2-1/16″ x

7-1/8″ (220 mm x

51.3 mm x 180 mm)

| 12-5/8″ x 2-1/16″ x

7-1/8″ (320 mm x

51.3 mm x 180 mm)

Weight| 2.46 kg| 3.52 kg
Recommended wire gauge| 8| 4
Maximum operation temperature| 45°C| 45°C

TROUBLESHOOTING

  • No audio and POWER INDICATOR is off.
    No voltage at BATT+ and/or REM terminals, or bad or no ground connection. Check voltages at amplifier terminals with VOM.

  • No audio and PROTECT INDICATOR flashes every 4 seconds.
    DC voltage on amplifier output. Amplifier may need service; see enclosed warranty card for service information.

  • No audio and PROTECT and POWER INDICATORS flash.
    Voltage less than 9V on BATT+ connection. Check boat charging system.

  • No audio and PROTECT INDICATOR is on.
    Amplifier is overheated. Make sure amplifier cooling is not blocked at mounting location. Or, there may be voltage greater than 16V (or less than 8.5V) on BATT+ connection. Check boat charging system.

  • Amplifier fuse keeps blowing.
    The wiring is connected incorrectly or there is a short circuit. Check wiring connections.

  • Distorted audio.
    Gain Is Not Set Properly. Check Setting. Check Wires For Shorts Or Grounds. Amplifier Or Source Unit May Be Defective.

  • Distorted audio and PROTECT INDICATOR flashes.
    Short circuit in speaker or wire. Remove speaker leads one at a time to locate shorted speaker or wire, and repair.

  • Music lacks dynamics or “punch”.
    Speakers are not connected properly. Check speaker connections for proper polarity.

  • Engine noise—whining or clicking—in system when the engine is on.
    Amplifier is picking up alternator noise. First, check ground connection on the amplifier – a loose or improper ground is one of the main causes for noise. Turn down gain. Move RCA audio cables away from power wires. Installing an alternator noise filter on power line between battery and alternator might also be necessary.

ABOUT COMPANY

  • HARMAN International Industries,
  • Incorporated 8500 Balboa Boulevard,
  • Northridge, CA 91329 USA
  • www.jbl.com

References

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