JL Audio XD300/1v2
Monoblock Class D Subwoofer Amplifier, 300 W x 1 @ 2 Ω / 200 W x 1 @ 4 Ω - 14.4V
This ultra-compact monoblock amplifier employs our high-speed NexD™ switching design to achieve unprecedented efficiency and amazing power output for its size. It is small enough to fit in the tightest space applications, including motorcycles and ATV’s (in a weather-tight compartment).
Targeted specifically for subwoofer applications, the XD300/1v2 includes a variable slope low-pass filter with continuously variable cutoff frequency selection from 50-500 Hz.
The XD300/1v2 also features the v2 Spec feature set, which consists of automatic turn-on capability (via signal sensing or DC-offset sensing), and a dual-range differential-balanced input section able to handle a wide range of input voltage levels. With the addition of an HD-RLC remote level control (sold separately), the amplifier's level can be directly controlled from the driver's seat.
This amplifier features a black powder-coat finish and a gasketed, brushed aluminum cover for the controls.
Rated Continuous (RMS) Power @ 14.4 V
@ 4 Ω | 200 W RMS x 1 |
@ 3 Ω | 250 W RMS x 1 |
@ 2 Ω | 300 W RMS x 1 |
@ 1.5 Ω | N/A |
Rated Continuous (RMS) Power @ 12.5 V
@ 4 Ω | 160 W RMS x 1 |
@ 3 Ω | 210 W RMS x 1 |
@ 2 Ω | 270 W RMS x 1 |
@ 1.5 Ω | N/A |
General Specifications
Frequency Response | 10 Hz - 1 kHz (+0, -1dB) |
S/N Ratio, referred to highest rated power | >100 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth) |
S/N Ratio, referred to 1 W | >80 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth) |
Damping Factor @ 4 Ω | >120 / 50 Hz |
Damping Factor @ 2 Ω | >60 / 50 Hz |
THD+N @ Rated Power | <1% @ 2 Ω per Ch. |
Input Voltage Range @ RCA Inputs | Switchable from 200 mV - 2 V RMS (Low) to 800 mV - 8 V RMS (High) |
Min.Copper Power / Ground Wire Gauge | 8 AWG wire |
Fuse Rating | 30 A (AFS, AGU or MaxiFuse™) |
Signal Processing
Filter Mode(s) | Low-Pass only |
Filter Slope(s) | 12/24 dB/octave |
Filter Frequency Range | 50 Hz - 500 Hz |
Detented, Calibrated Filter Freq. Potentiometer | Yes |
Filter Defeat Function | Yes |
Infrasonic Filter | none |
Bass Boost EQ | No |
Output Polarity Switch | No |
Remote Subwoofer Level Control | Optional (HD-RLC) |
Remote Bass EQ Boost Control | No |
Pass-Through Preamp Output | Buffered |
Physical Specifications

Height (H) | 2.05 in / 52 mm |
Width (W) | 6.85 in / 174 mm |
Depth (D) | 7.09 in / 180 mm |
Net Weight | 3.8 lb / 1.72 kg |
- SKU:
- XD300/1v2
- UPC:
- 699440986014
- Condition:
- New
- Availability:
- This item has been discontinued, but we still have some stock left. Purchase soon to enjoy the savings!
- Shipping:
- Free 2-Day Shipping!
JL Audio Warranty
Mobile Audio Subwoofer Drivers | JL Audio Subwoofer Drivers are warrantied against defects in materials and workmanship for One (1) Year from purchase date. |
Mobile Audio Amplifiers and Electronic Products | JL Audio Amplifiers and Electronics are warrantied against defects in materials and workmanship for Two (2) Years from purchase date. |
Mobile Audio Speaker Systems | JL Audio Speaker Systems are warrantied against defects in materials and workmanship for One (1) Year from purchase date. |
Mobile Audio Engineered Connection Systems | JL Audio Engineered Connection Systems are warrantied against defects in materials and workmanship for Two (2) Years from purchase date. |
Mobile Audio Enclosed Subwoofer Systems | JL Audio Enclosed Subwoofer Systems are warrantied against defects in materials and workmanship for Two (2) Years from purchase date. |
Stealthbox® Subwoofer Systems | JL Audio Stealthbox® Subwoofer Systems are warrantied against defects in materials and workmanship for Two (2) Years from purchase date. |
Marine Speaker Systems and Subwoofers | JL Audio Marine Speaker Systems and Subwoofers are warrantied against defects in materials and workmanship for Two (2) Years from purchase date. |
Marine Amplifiers and Electronics | JL Audio Marine Amplifiers and Electronics are warrantied against defects in materials and workmanship for Two (2) Years from purchase date. |
Marine Engineered Connection Systems | JL Audio Engineered Connection Systems are warrantied against defects in materials and workmanship for Two (2) Years from purchase date. |
SlamPak™ Powersports Audio Systems | JL Audio SlamPak™ Systems are warrantied against defects in materials and workmanship for Two (2) Years from purchase date. |
Stealthbox® Powersports Subwoofer Systems | JL Audio Stealthbox® Subwoofer Systems are warrantied against defects in materials and workmanship for Two (2) Years from purchase date. |
Number Of Channels: |
Single Channel |
UPC: |
699440986014 |
RMS Power In Watts: |
251-500 Watts |
Bundle: |
No |
Feature 1: |
The amazingly small XDv2 amplifiers are huge in audio performance, thanks to our advanced NexD™ switching technologies. These technologies allow XDv2 amplifiers to achieve efficiencies exceeding 80%, meaning far less heat and strain on your vehicle's |
Feature 2: |
This efficiency advantage, combined with state-of-the-art microelectronic components, allows us to use very compact unitary cast alloy heat sinks. |
Feature 3: |
Just like their more expensive HD siblings, XDv2's deploy our Advanced Thermal Rollback System to completely eliminate annoying thermal shut-down events. |
Feature 4: |
Beneath every XDv2's removable control cover, you will find studio-grade signal processing with fully variable crossover filters. Also included are our noise-killing, highly flexible differential-balanced inputs |
Feature 5: |
Spec feature set consists of automatic turn-on capability (via signal sensing or DC-offset sensing) and a dual-range differential-balanced input section able to handle a wide range of input voltage levels. |
Condition: |
NEW |
Manufacturer SKU: |
98601 |
Manual: |
Click Here">Click here to download |
Weight: |
5.0000 lbs |