Description
JL Audio MX280/4 4-channel Marine Amplifier + JL Audio 6.5″ M3-650X-S-GW-I x2 Pairs Marine Speaker
MX280/4 Amplifier Specifications
Rated Continuous (RMS) Power @ 14.4 V
| @ 4 Ω | 50 W RMS x 4 |
| @ 2 Ω | 70 W RMS x 4 |
| Bridged @ 4Ω | 140 W RMS x 2 |
Rated Continuous (RMS) Power @ 12.5 V
| @ 4 Ω | 36 W RMS x 4 |
| @ 2 Ω | 52 W RMS x 4 |
| Bridged @ 4Ω | 100 W RMS x 2 |
General Specifications
| Frequency Response | 20 Hz – 20 kHz (+0, -1dB) |
| S/N Ratio, referred to highest rated power | >89.5 dB below rated power (A-weighted, 20 Hz – 20 kHz noise bandwidth) |
| S/N Ratio, referred to 1 W | >68 dB (A-weighted, 20 Hz – 20 kHz noise bandwidth) |
| Damping Factor @ 4 Ω | >60 / 50 Hz |
| Damping Factor @ 2 Ω | >30 / 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 | 8 AWG wire |
| Fuse Rating | 35 A (AFS, AGU or MaxiFuse™) |
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 |
Physical Specifications
| Height (H) | 1.77 in / 45 mm |
| Width (W) | 8.66 in / 220 mm |
| Depth (D) | 3.09 in / 78.5 mm |
| Net Weight | 3.18 lb / 1.44 kg |
M3-650X-S-GW-I Speaker Specifications
General Specifications
| 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 ± 3 dB |
Coaxial Physical Specifications 
| Frame Outer Diameter (A) | 6.90 in / 175 mm |
| Bolt Hole Circle Diameter (B) | 6.125 in / 155.5 mm |
| Motor Outer Diameter (C) | 3.85 in / 98 mm |
| Frontal Grille Protrusion* (D) | 0.973 in / 25 mm |
| Mounting Hole Diameter (E) | 5.00 – 5.25 in / 127 – 133 mm |
| Mounting Depth (F) | 2.74 in / 69.5 m |
| *Frontal grille protrusion measured from mounting surface | |
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