JL Audio E6450M User Manual

Thank you for purchasing a JL Audio amplifier for
your marine sound system.
Your amplifier has been designed and manufactured to exacting
standards in order to ensure years of musical enjoyment in your
vessel. For maximum performance and extended warranty
coverage, we highly recommend that you have your new amplifier
installed by an authorized JL Audio dealer. Your authorized
dealer has the training, expertise and installation equipment to
ensure optimum performance from this product. Should you
decide to install the amplifier yourself, please take the time
to read this manual thoroughly so as to familiarize yourself
with its installation requirements and setup procedures.
If you have any questions regarding the instructions in this
manual or any aspect of your amplifier’s operation, please contact
your authorized JL Audio dealer for assistance. If you need further
assistance, please call the JL Audio Technical Support Department at
(954) 443-1100 during business hours (Eastern Time Zone).
JL AUDIO e6450M
six-channel full-range marine amplifier
owner’s manual

JL Audio E6450M Specifications

General

Brand	JL Audio
Model	E6450M
Category	Amplifier
Language	English

Summary

PROTECT YOUR HEARING!

INSTALLATION APPLICATIONS

PLANNING YOUR INSTALLATION

Cooling Efficiency Considerations

Ensures optimal heat removal from the amplifier's outer shell for performance.

Safety Considerations

Install in a dry, well-ventilated area, securely mounting to prevent movement.

Stupid Mistakes to Avoid

Warnings about drilling holes, routing wires, and mounting location.

PRODUCT DESCRIPTION

TYPICAL INSTALLATION SEQUENCE

POWER CONNECTIONS

FUSE REQUIREMENTS

TURN-ON LEAD

INPUT SECTION

AMPLIFIER CONTROLS

Input Sensitivity

Adjusts source unit output voltage to amplifier input for maximum clean output.

Filter Controls

Selects frequency ranges for speakers (LP, HP, Off) and sets cutoff frequency.

BASS BOOST CONTROLS

SPEAKER OUTPUTS

BRIDGING CONSIDERATIONS

AMPLIFIER STATUS INDICATOR LIGHTS / PROTECTION CIRCUITRY

SERVICING YOUR JL AUDIO AMPLIFIER

SYSTEM CONFIGURATIONS

BI-AMPLIFIED SYSTEMS

Systems using separate amp channels for LF and HF speakers, separately filtered.

BI-AMPLIFIED SYSTEM WITH THE e6450M

Configuring the e6450M for bi-amplification of subwoofers and component speakers.

Crossover Setup for Bi-Amplified System with one e6450M

APPENDIX A: Input Sensitivity Level Setting

APPENDIX B: Precise Frequency Selection Chart

APPENDIX C: e6450M Specifications

APPENDIX D: TROUBLE SHOOTING

MY AMPLIFIER DOESN'T TURN ON

Troubleshooting steps for an amplifier that fails to power on.

I GET A DISTORTED / ATTENUATED SOUND COMING OUT OF THE SPEAKER(S)

Diagnosing issues causing distorted or weak audio output.

MY AMPLIFIER SHUTS OFF ONCE IN A WHILE, USUALLY AT HIGHER VOLUMES

Resolving intermittent shutdowns due to voltage or thermal issues.

MY AMPLIFIER TURNS ON, BUT THERE IS NO OUTPUT

Steps to take when the amplifier powers on but produces no sound.

MY AMPLIFIER'S OUTPUT FLUCTUATES WHEN I TAP ON IT OR HIT A WAVE

Addressing connection or vibration-related output fluctuations.

HOW DO I PROPERLY SET THE INPUT SENSITIVITY ON MY AMPLIFIER

Guidance on setting input sensitivity for optimal, low-distortion performance.

LIMITED WARRANTY - AMPLIFIERS (USA)