JL Audio M6 Series Marine Coaxial Loudspeakers
Models: M6-650x, M6-770x, M6-880x
With Built-In RGB LED Lighting (Optional)
Owner's Manual
ℹ️ IMPORTANT INFORMATION
- Installation requires appropriate tools and safety equipment. Professional installation is recommended.
- This product is water-resistant. Do not submerge or subject to high-pressure water spray.
- Before installation, turn off the audio system and disconnect the battery system from the audio system.
- Before cutting or drilling, check for potential obstacles behind mounting surfaces.
- Do not mount this product in an engine compartment or other area of extreme heat.
- Mount this product securely to prevent damage or injury in severe conditions.
- Wash with mild soap and rinse with freshwater only.
⚠️ WARNING: Listen to your audio system at levels appropriate for operating conditions and hearing safety.
? RGB LED Illumination
The RGB LED illumination feature requires separate 12V wiring at each speaker location.
Individual leads can be wired to achieve up to seven fixed LED colors. For adjustable LED control, an RGB lighting controller (sold separately) is required.
Consult your local waterway authority for regulations on the use of accent/speaker lighting on your vessel.
Product Overview and Specifications
Model Dimensions
The following describes the physical dimensions and mounting requirements for the M6 Series marine coaxial loudspeakers. Product images shown are for illustrative purposes only and may differ from the actual product.
- M6-650x:- Overall Diameter: 6.90 in / 175 mm
- Mounting Diameter (Cut-out): 5.00-5.25 in / 127-133 mm
- Mounting Depth: 3.00 in / 76 mm
- Tweeter Height: 0.94 in / 24 mm
 
- M6-770x:- Overall Diameter: 7.70 in / 196 mm
- Mounting Diameter (Cut-out): 6.25 in / 159 mm
- Mounting Depth: 3.32 in / 84 mm
- Tweeter Height: 1.03 in / 26 mm
 
- M6-880x:- Overall Diameter: 8.80 in / 224 mm
- Mounting Diameter (Cut-out): 7.375 in / 187 mm
- Mounting Depth: 5.00 in / 127 mm
- Tweeter Height: 1.37 in / 35 mm
 
Technical Specifications
| Model | RMS Power | Peak Power | Recommended Power | Sensitivity (1W/1m) | Frequency Response | Impedance (ZNOM) | 
|---|---|---|---|---|---|---|
| M6-650x | 75 W | 225 W | 25-150 W | 89.5 dB | 55 Hz-25 KHz ± 3 dB | 4Ω | 
| M6-770x | 100 W | 300 W | 40-200 W | 91.0 dB | 45 Hz-25 KHz ± 3 dB | 4Ω | 
| M6-880x | 125 W | 375 W | 50-250 W | 90.5 dB | 38 Hz-20 KHz ±3 dB | 4Ω | 
Mounting Hardware
The following hardware is included for mounting the speakers:
- For M6-650x & M6-770x: 12 x #8 screws (1.125 in / 29 mm length)
- For M6-880x: 12 x #8 screws (1.5 in / 38 mm length)
- 12 x Washers
? LED Wiring
To enable the optional RGB LED illumination, connect the speaker's LED leads to a 12V DC power source (10-14.4V DC) using 20 AWG / 0.50 mm² wire.
The following wire color combinations produce specific LED colors:
- Red (RD): Produces Red light.
- Green (GN): Produces Green light.
- Blue (BL): Produces Blue light.
- Red + Green (RD GN): Produces Yellow light.
- Red + Blue (RD BL): Produces Pink light.
- Green + Blue (GN BL): Produces Aqua light.
- Red + Green + Blue (RD+GN BL): Produces White light.
Power Consumption:
- M6-650x & M6-770x: 324 mA at 14.4V DC
- M6-880x: 486 mA at 14.4V DC
NON-SERVICEABLE SAFETY DEVICE
Do not alter, replace or bypass!





