JL Audio JX250/1
Monoblock Class A/B Subwoofer Amplifier, 250 W x 1 @ 2 Ω / 175 W x 1 @ 4 Ω - 14.4V
This rugged and reliable Class A/B monoblock uses a robust MOSFET power supply design that delivers rock-solid bass performance at a very affordable price.
Targeted specifically for subwoofer applications, the JX250/1 includes a low-pass filter with continuously variable cutoff frequency selection from 50-200 Hz. It also features a variable bass boost at 45 Hz. with up to 12 dB of boost and an optional remote boost control. Dedicated hi-level inputs are included, in addition to conventional low-level RCA inputs, making it easy to integrate with a variety of OEM and aftermarket head units.
Rated Continuous (RMS) Power @ 14.4 V
@ 4 Ω 175 W RMS x 1
@ 3 Ω 210 W RMS x 1
@ 2 Ω 250 W RMS x 1
Rated Continuous (RMS) Power @ 12.5 V
@ 4 Ω 130 W RMS x 1
@ 3 Ω 170 W RMS x 1
@ 2 Ω 210 W RMS x 1
Frequency Response 10 Hz - 150 Hz (+0, -1dB)
S/N Ratio, referred to highest rated power >87 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)
S/N Ratio, referred to 1 W >63 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth)
Damping Factor @ 4 Ω >160 / 50 Hz
Damping Factor @ 2 Ω >80 / 50 Hz
THD+N @ Rated Power <1% @ 2 Ω per Ch.
Input Voltage Range @ RCA Inputs 200 mV - 4 V RMS
Input Voltage Range @ High-Level Inputs 2 V - 10 V RMS
Min.Copper Power / Ground Wire Gauge 8 AWG wire
Fuse Rating 30 A (AFS, AGU or MaxiFuse™)
Filter Mode(s) Low-Pass only
Filter Slope(s) 12 dB/octave
Filter Frequency Range 50 Hz - 200 Hz
Detented, Calibrated Filter Freq. Potentiometer No
Filter Defeat Function No
Infrasonic Filter none
Bass Boost EQ 0 to +12 dB @ 45 Hz
Output Polarity Switch No
Remote Subwoofer Level Control Optional (RBC-1)
Remote Bass EQ Boost Control No
Pass-Through Preamp Output Unbuffered
Height (H) 2.09 in / 53 mm
Width (W) 10.94 in / 278 mm
Depth (D) 7.68 in / 195 mm
Net Weight 3.8 lb / 1.72 kg
Class A/B Circuitry
Class A/B amplifier output stage delivers excellent fidelity with very low distortion.
This well-proven linear amplifier topology uses complementary pairs of bipolar transistors to deliver low-distortion and excellent full-bandwidth fidelity.