JL Audio
JL Audio XD300/1v2
Best compact monoblock for space-constrained subwoofer installations.
The JL Audio XD300/1v2 is an ultra-compact monoblock amplifier designed to efficiently power your subwoofers. Its high-speed NexD™ switching technology delivers substantial power in a small footprint, ideal for tight installations in vehicles like motorcycles or ATVs. This amplifier features automatic turn-on, a versatile differential-balanced input, and a variable low-pass filter (50-500 Hz). It boasts a durable black powder-coat finish with a brushed aluminum control cover. Please note, this model has been discontinued by the manufacturer, but offers excellent performance for its size.
$529.99
Owner Satisfaction
4.8
/ 5
Category Rank
168
/ 1684
#168 in Power Amplifiers
Price vs Category Average
-94%
Below average
Amplifier Class
Class D
/ Class D
Who it's for
- Drivers with limited space for audio equipment
- Owners of vehicles with sensitive electrical systems
- Audiophiles seeking precise and controlled bass performance
Who should skip it
- Professional installers needing advanced signal processing tools
- Budget-conscious buyers comparing cost per watt
- Bass enthusiasts requiring high-output power for large subwoofers
Performance breakdown
Space Efficiency
Ultra-compact footprint fits easily into motorcycles, ATVs, and tight vehicle panels.
Power Density
NexD switching technology packs impressive subwoofer drive into a tiny chassis.
Signal Clarity
High signal-to-noise ratio ensures clean, distortion-free bass reproduction for your system.
Installation Versatility
Differential-balanced inputs and automatic turn-on simplify integration with factory audio units.
Build Durability
Rugged powder-coat finish protects internal components against harsh environmental conditions.
Tuning Precision
Variable low-pass filter offers essential control for dialing in subwoofer response.
Key Specs
Amplifier Class
Class D
Rated Continuous (RMS) Power @ 14.4 V
200 W RMS x 1 @ 4 Ω, 250 W RMS x 1 @ 3 Ω, 300 W RMS x 1 @ 2 Ω
Frequency Response
10 Hz - 1 kHz (+0, -1dB)
Signal-to-Noise Ratio
>100 dB below rated power (A-weighted)
Total Harmonic Distortion
<1% @ 2 Ω per Ch.
Filter Mode(s)
Low-Pass only
Filter Slope(s)
12/24 dB/octave
Filter Frequency Range
50 Hz - 500 Hz
Features
- Ultra-compact design for tight spaces
- High-efficiency NexD™ switching technology
- Automatic turn-on via signal or DC-offset
- Variable low-pass filter (50-500 Hz)
- Dual-range differential-balanced inputs
- Durable black powder-coat finish
- Optional remote level control compatible
What customers say
The JL Audio XD300/1v2 earns high praise as a top compact amplifier, primarily for its impressive power density and sound quality. Users consistently highlight the ability to achieve 300 watts RMS from its small chassis, which simplifies installation in tight spaces. The amplifier delivers clean, accurate bass reproduction without distortion, even when driven hard. Reliability is another key strength, with many reporting years of stable, cool operation. While the initial cost is noted as premium, most customers agree that the combination of superior performance, dependable build quality, and space saving design makes the investment worthwhile for excellent audio results.
Know before you buy
The XD300/1v2 is a monoblock amplifier designed specifically to power a single subwoofer or a pair of subwoofers wired to a 2, 3, or 4-ohm load. It provides 300 watts of RMS power at 2 ohms, making it an excellent choice for compact, high-performance subwoofer enclosures.
Yes, its ultra-compact footprint and efficient Class D NexD switching technology make it ideal for vehicles with limited space. However, please note that while it is durable, it is not specifically rated as waterproof, so you should ensure it is mounted in a protected, dry location.
The amplifier features an automatic turn-on circuit that detects either a standard remote turn-on signal or a DC-offset from your factory head unit's speaker wires. This allows you to integrate the amp into systems that lack a dedicated remote turn-on lead.
You should use a minimum of 8 AWG copper wire for both the power and ground connections to ensure the amplifier receives consistent current. Using high-quality copper wire is essential for maintaining the efficiency and performance of this Class D design.
Yes, it is compatible with the JL Audio HD-RLC remote level control, which is sold separately. This allows you to adjust the subwoofer volume directly from your driver's seat.
No, this is a dedicated monoblock subwoofer amplifier. It only features a variable low-pass filter (50-500 Hz), which is designed to keep high-frequency signals out of your subwoofer.
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