JL AUDIO JX 250/1 monoblock amplifier

JX Amplifiers apply our no-nonsense, pure performance philosophy to a high-value package.
When you inspect a JX amplifier, you will see that nothing is spent on gimmicks, blue lights or chrome. Instead, you'll see specified oversized output transistors and rugged MOSFET power supplies that ensure ample current and thermal capacity. These beefy parts operate well under their limits to deliver stable performance and significantly more reliability than the wimpy devices commonly found in many competing products. All of these components add up to solid bass definition and cleaner, louder high frequency output that gets the most out of your speaker system.
To get your system dialed in just right, we also include flexible signal processing capabilities with fully variable crossover filters, pass-through preamp outputs and a Bass EQ. The monoblock models also include a port for an optional Remote Level Control (RBC-1, sold separately).
We know you’re going to be really happy when you see how affordable JL Audio JX amplifiers are, but our real goal is to keep you smiling with great sound in your car for many years to come. That’s why we put the good stuff under the hood.
Product Line Overview
Full-range JX models are available in two or four-channel versions and offer plenty of clean power to get superb performance from your component systems or subwoofers.
Three JX Monoblock Subwoofer Amplifiers are specifically optimized for superior sub-bass performance and are available to suit a wide range of subwoofer system applications, from 250 W all the way to a full 1000 W of power.
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.

Specifications:
Amplifier Topology: Class A/B
Power Supply: Unregulated PWM switching type
Frequency Response: 10 - 150 Hz (+0/– 1 dB)
Signal to Noise Ratio:
>87 dBA referred to highest rated power, >63 dBA
referred to 1W (20 Hz - 20 kHz noise bandwidth)
Damping Factor: >160 @ 4 ohms
THD + Noise @ Rated Power: 1 %
Rated Continuous (RMS) Power @ 14.4V:
175W RMS x 1 @ 4Ω
210W RMS x 1 @ 3Ω
250W RMS x 1 @ 2Ω
Rated Continuous (RMS) Power @ 12.5V:
130W RMS x 1 @ 4Ω
170W RMS x 1 @ 3Ω
210W RMS x 1 @ 2Ω
Recommended Fuse Value (Type): 30A (MAXI or AGU)
Minimum Copper Power/Ground Wire Gauge: 8 AWG
Dimensions (LxWxH):
10.94" x 7.68" x 2.09" (278 mm x 195 mm x 53 mm)
Net Weight: 6.0 lbs. (2.72 kg)