JL Audio MX280/4

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

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™)

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