Description
Included in this kit
This bundle includes a JL Audio M3-770ETXv3-Sb-S-Gm - M3 7.7" Marine Tower Speakers (pair) - Satin Black & Gunmetal Sport Grilles, and a JL Audio MHD600/4:4 Ch. Class D Full-Range Marine Amplifier 600 W.
1x JL Audio M3-770ETXv3-Sb-S-Gm - M3 7.7" Marine Tower Speakers (pair) - Satin Black & Gunmetal Sport Grilles - (M3-770ETXv3-Sb-S-Gm)
JL Audio M3-770ETXv3-Sb-S-Gm - M3 7.7" Marine Tower Speakers (pair) - Satin Black & Gunmetal Sport Grilles
7.7-inch enclosed tower system with 0.75-inch (19 mm) marine silk dome tweeters, 70W, 4 ohms
Clamps sold separately - Click HERE to find the perfect size for your application.
M3 Marine Tower Speakers - Big Speaker Sound and Stunning Looks
• Oversized 7.7-inch coaxials deliver stronger output and better power handling than smaller speakers.
High-Performance Coaxial Drivers
High-Performance M3-Series 7.7-inch coaxial speakers for moderate power, standard output applications.
Top-Quality, Salt-Water-Grade Materials
• Pipe mounting fixtures (fixed and swivel) are available for the most popular pipe diameters.
• Deck/Surface mount fixture with ratchet-adjustable pitch is also available.
• The speaker and rear decorative JL Audio logo cap can be adjusted to compensate for different mounting roll angles.
Choose Your Look
• Available in two grille styles: “Classic” or “Sport”, both in Gloss White. Sport models are also available in a sleek, all Gunmetal finish.
• Allows you to match the look of the speakers to the theme of the boat interior.
General Specifications
| System Nominal Impedance | 4 Ω |
| System Frequency Response | 55 Hz - 25 KHz ± 3 dB |
| System Efficiency | 90.5 dB @ 1 W / 1 m |
| Continuous Power Handling (RMS) | 70 W |
| Peak Music Power | 225 W |
| Recommended Amplifier Power (RMS) | 25 - 150 W / Ch. |
Physical Specifications
| Enclosure Diameter (A) | 7.70 in / 196 mm |
| Enclosure Depth (B) | 12.52 in / 318 mm |
| Height including Mounting Clamp Receiver* (C) | 8.56 in / 217 mm |
| Mounting Clamp Receiver / Enclosure Offset (D) | 0.86 in / 22 mm |
Pipe Clamps
Most Commonly Used Clamps - These are sold separately and not included in this product on it's own.
Want to view all the ETXv3 mounting adapters?Click HERE to find the perfect mount for your application.
Need help determining the correct Pipe-Mounting Clamp for your installation?
Download the Pipe-Mounting Clamp Ruler.
Fixed Clamps
Swivel Clamps
Boat Specific Clamps & Specialty
1x JL Audio MHD600/4:4 Ch. Class D Full-Range Marine Amplifier 600 W - (MHD600/4)
JL Audio MHD600/4
4-Channel Class D Marine Full-Range Amplifier, 150 W x 4 @ 1.5-4 Ω
This compact, multi-channel powerhouse employs our Single-Cycle Control switching design and R.I.P.S. technology to deliver 150 W x 4 or 300 W x 2. Tight power supply regulation keeps distortion down and maximizes sound quality.
When using the MHD750/1 to drive a subwoofer system, the MHD600/4 is the ideal satellite amplifier, delivering huge dynamics with pristine resolution. It can also be deployed, on its own, as a very capable 3-channel system amplifier with 150W x 2 to the satellites and 300W x 1 to a subwoofer system.
This marine amplifier features white and gray powder-coat finishes, a gasketed cover for the controls and stainless steel hardware for durability in the marine environment.
Rated Continuous (RMS) Power @ 14.4 V
| @ 4 Ω | 150 W RMS x 4 |
| @ 3 Ω | 150 W RMS x 4 |
| @ 2 Ω | 150 W RMS x 4 |
| @ 1.5 Ω | 150 W RMS x 4 |
| Bridged @ 8 Ω | 300 W RMS x 2 |
| Bridged @ 4 Ω | 300 W RMS x 2 |
Rated Continuous (RMS) Power @ 12.5 V
| @ 4 Ω | 150 W RMS x 4 |
| @ 3 Ω | 150 W RMS x 4 |
| @ 2 Ω | 150 W RMS x 4 |
| @ 1.5 Ω | 150 W RMS x 4 |
| Bridged @ 8 Ω | 300 W RMS x 2 |
| Bridged @ 4 Ω | 300 W RMS x 2 |
General Specifications
| Frequency Response | 6 Hz - 30 kHz (+0, -1dB) |
| S/N Ratio, referred to highest rated power | >110 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth) |
| S/N Ratio, referred to 1 W | >88.2 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth) |
| Damping Factor @ 4 Ω | >300 / 50 Hz |
| Damping Factor @ 2 Ω | >150 / 50 Hz |
| THD+N @ Rated Power | <0.03% @ 4 Ω per Ch. |
| Input Voltage Range @ RCA Inputs | Switchable from 200 mV - 2 V RMS to 800 mV - 8 V RMS |
| Min.Copper Power / Ground Wire Gauge | 4 AWG wire |
| Fuse Rating | 50 A (AFS, AGU or MaxiFuse™) |
Physical Specifications
| Height (H) | 1.93 in / 49 mm |
| Width (W) | 10.74 in / 273 mm |
| Depth (D) | 8.29 in / 211 mm |
| Net Weight | 6.6 lb / 2.99 kg |
Signal Processing
| Filter Mode(s) | Low-Pass or High-Pass |
| Filter Slope(s) | 12/24 dB/octave |
| Filter Frequency Range | 50 Hz - 500 Hz |
| Detented, Calibrated Filter Freq. Potentiometers | Yes |
| Filter Defeat Function | Yes |
| Remote Level Control | Optional (HD-RLC) |
| Remote Level Modes | 2 or All Channels |
| Channel Input Mode Switch | Yes (2/4 ch.) |
| Pass-Through Preamp Output | Buffered |
| Source Channel Selection for PreOuts | Yes |