Description
JL Audio MX500/4 4-Channel Class D Marine Amplifier + JL Audio M3-650X-GM-I x2 Pairs 6.5″ Marine Speakers with LEDs
Amp Highlights
4-Channel Class D Full-Range Amplifier, 125 W x 4 @ 2 Ω / 70 W x 4 @ 4 Ω – 14.4V
Generating a solid 70W x 4 into 4 ohms (14.4V, 1% THD), the MX500/4 is fully bridgeable, so it can be used as a 3-channel amplifier, or as a 2-channel amplifier producing a potent 250W x 2 into 4 ohms.
Other features include independent front and rear crossovers with selectable full-range, high-pass or low-pass filter controls and a dual-range input section that accepts a wide range of input voltage levels, from line-level all the way to high-power speaker level signals.
This amplifier features a black powder-coated finish, a gasketed cover for the controls and stainless steel hardware for durability.
Amp Features
Rated Continuous (RMS) Power @ 14.4 V
| @ 4 Ω | 70 W RMS x 4 |
| @ 2 Ω | 125 W RMS x 4 |
| Bridged @ 4Ω | 250 W RMS x 2 |
Rated Continuous (RMS) Power @ 12.5 V
| @ 4 Ω | 55 W RMS x 4 |
| @ 2 Ω | 90 W RMS x 4 |
| Bridged @ 4Ω | 180 W RMS x 2 |
Amp Specifications
| Frequency Response | 20 Hz – 20 kHz (+0, -1dB) |
| S/N Ratio, referred to highest rated power | >88 dB below rated power (A-weighted, 20 Hz – 20 kHz noise bandwidth) |
| S/N Ratio, referred to 1 W | >70.5 dB (A-weighted, 20 Hz – 20 kHz noise bandwidth) |
| Damping Factor @ 4 Ω | >92 / 50 Hz |
| Damping Factor @ 2 Ω | >43 / 50 Hz |
| THD+N @ Rated Power | <1% @ 2 Ω per Ch. |
| Input Voltage Range @ RCA Inputs | Switchable from 250 mV – 4 V RMS (Low) to 750 mV – 15 V RMS (High) |
| Min.Copper Power / Ground Wire Gauge | 4 AWG wire |
| Fuse Rating | 50 A (AFS, AGU or MaxiFuse™) |
Amp Signal Processing
| Filter Mode(s) | Low-Pass or High-Pass |
| Filter Slope(s) | 12 dB/octave |
| Filter Frequency Range | 35 Hz – 300 Hz |
| Detented, Calibrated Filter Freq. Potentiometers | Yes |
| Filter Defeat Function | Yes |
| Remote Level Control | No |
| Remote Level Modes | N/A |
| Channel Input Mode Switch | Yes (2/3/4 ch.) |
| Pass-Through Preamp Output | None |
| Source Channel Selection for PreOuts | N/A |
Amp Physical Specifications
| Height (H) | 1.77 in / 45 mm |
| Width (W) | 9.33 in / 237 mm |
| Depth (D) | 4.50 in / 115 mm |
Speaker Highlights
- 6-1/2″ 2-way marine speakers (pair)
- injection-molded, mica-filled polypropylene woofer with synthetic rubber surround
- 3/4″ silk dome tweeter
- UV- and corrosion-resistant polymer baskets and grilles
- designed for free-air applications (no enclosures needed)
- for best performance, speaker needs at least 2 cubic feet of airspace
- handles up to 60 watts RMS (225 watts peak power)
- frequency response: 55-25,000 Hz
- sensitivity: 89.5 dB
- cutout diameter: 4.972
- frame diameter: 6.9
- mounting depth: 2.825
- warranty: 2 years
| Speaker Size | 6 1/2 |
| Design | 2-way |
| Tweeter Design | 3/4″ Dome |
| Tweeter Composition | Silk |
| Woofer Composition | Mica-Filled IMPP |
| Woofer Surround | Rubber |
| Parts Warranty | 2 Years |
| Labor Warranty | 2 Years |
Sold as a pair.
Speaker Features
| Continuous Power Handling (RMS) | 60 W |
| Recommended Amplifier Power (RMS) | 20 – 120 W / Ch. |
| System Efficiency | 89.5 dB @ 1 W / 1 m |
| System Nominal Impedance | 4 Ω |
| System Frequency Response | 55 Hz – 25 KHz + 3dB |
Speaker Specifications
| Frame Outer Diameter (A) | 6.90 in / 175 mm |
| Bolt Hole Circle Diameter (B) | 6.125 in / 156 mm |
| Frontal Grille Protrusion* (C) | 1.01 in / 26 mm |
| Mounting Hole Diameter (D) | 5.00 – 5.25 in / 127 – 133 mm |
| Mounting Depth (E) | 2.78 in / 71 m |
| *Frontal grille protrusion measured from mounting surface | |
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