JL Audio XD400/4v2
4-Channel Class D Full-Range Amplifier, 100 W x 4 @ 2 Ω / 75 W x 4 @ 4 Ω - 14.4V
This tiny amplifier packs a serious full-range punch, delivering a staggering 100 watts to each of its four channels into 2 ohms (14.4V, 1% THD). The breakthrough that makes this much power possible in such a small chassis is our NexD™ ultra-high-speed switching design, which allows for full bandwidth Class D operation with extremely low distortion and outstanding efficiency.
Use the XD400/4v2 in combination with our XD600/1 monoblock to build a 1000 W amplification system to power four satellites and a subwoofer... and fit the whole thing under a seat. Or, use the XD400/4v2 by itself to power two satellites, plus a subwoofer. With XD's, the possibilities are endless.
The XD400/4v2 includes a 12 dB / octave filter for each channel bank, which can be configured as a low-pass or high-pass filter and offers continuously variable cutoff frequency selection from 50-500 Hz.
The XD400/4v2 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 | 75 W RMS x 4 |
| @ 2 Ω | 100 W RMS x 4 |
| Bridged @ 4Ω | 200 W RMS x 2 |
Rated Continuous (RMS) Power @ 12.5 V
| @ 4 Ω | 60 W RMS x 4 |
| @ 2 Ω | 90 W RMS x 4 |
| Bridged @ 4Ω | 180 W RMS x 2 |
General Specifications
| Frequency Response | 12 Hz - 22 kHz (+0, -1dB) |
| S/N Ratio, referred to highest rated power | >104 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth) |
| S/N Ratio, referred to 1 W | >84 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth) |
| Damping Factor @ 4 Ω | >150 / 50 Hz |
| Damping Factor @ 2 Ω | >75 / 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 | 4 AWG wire |
| Fuse Rating | 40 A (AFS, AGU or MaxiFuse™) |
Signal Processing
| Filter Mode(s) | Low-Pass or High-Pass |
| Filter Slope(s) | 12 dB/octave |
| Filter Frequency Range | 50 Hz - 500 Hz |
| Detented, Calibrated Filter Freq. Potentiometers | Yes |
| Filter Defeat Function | Yes |
| Remote Level Control | Optional (HD-RLC) |
| Remote Level Modes | 2 or All channels |
| Channel Input Mode Switch | Yes (2/4 ch.) |
| Pass-Through Preamp Output | Buffered |
| Source Channel Selection for PreOuts | Yes |
Physical Specifications
| Height (H) | 2.05 in / 52 mm |
| Width (W) | 8.52 in / 216 mm |
| Depth (D) | 7.09 in / 180 mm |
| Net Weight | 4.75 lb / 2.15 kg |
- SKU:
- XD400/4v2
- UPC:
- 699440986021
- Condition:
- New
- Availability:
- In stock and ready to ship!
- 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: |
4 Channel |
UPC: |
699440986021 |
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: |
98602 |
Manual: |
Click Here">Click here to download |
Weight: |
5.5000 lbs |
1 Review Hide Reviews Show Reviews
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Finally loving the sound system in my new car!
Purchased this XD400 to replace an Alpine amp that sounded a little "off" and harsh from day one. Installing this amp breathed the life back in my music! Sound quality is second to none (except maybe the higher class JL amps). This is the second XD400 amp I've used. Yes, JL Audio is a little pricey, but I wasted 500 bucks on the other amp, so I think I will just stick with JL Audio from now on and save myself some money in the long run. I would recommend this amp and every other JL Audio product I've tried. Creative's customer service and prices also keep me coming back.
