400W RMS XDv2 Series Class-D 4-Channel Amplifier
• 75 watts x 4 channel @ 4 ohms
• 100 watts x 4 channel @ 2 ohms
• Bridged: 200 watts x 2 channel @ 4 ohms
• Total RMS Power: 400 watts
• Class D 2 ohms Stable 4-Channel Amplifier
• 75 watts x 4 channel @ 4 ohms
• 100 watts x 4 channel @ 2 ohms
• Bridged: 200 watts x 2 channel @ 4 ohms
• Total RMS Power: 400 watts
• Class D 2 ohms Stable 4-Channel Amplifier
This potent 4-Channel amplifier employs JL Audio's high-speed NexD™ switching design to achieve unprecedented efficiency and amazing power output in an ultra-compact chassis. Don't let the small size fool you, though... this amplifier is capable of serious power, delivering a full 400W of continuous total power into a 2 ohm load (14.4V, 1% THD). Targeted specifically for an audiophile-grade four satellite system, the XD400/4v2 includes a variable mode low-pass/high-pass filter with a 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), you can control the volume of one or both channel pairs of the XD400/4v2 from the front of the vehicle. This amplifier features a black powder-coat finish and a gasketed, brushed aluminum cover for the controls.
JL Audio's signature Advanced Thermal Rollback protection system eliminates annoying thermal shutdown events to keep the music playing, even under the most demanding conditions. Should the amplifier reach an unsafe operating temperature, a special circuit rolls back peak power output, without changing gain, until the amplifier cools down to a safe operating temperature. The red "Thermal" LED will light to indicate this condition has been reached. Once the amplifier cools down, the circuit restores full peak power output and the red "Thermal" indicator reverts to its normal state. The operation of Advanced Rollback Protection is inaudible in most cases.
From the same minds that gave us the technology found in the 'Slash' amplifiers, JL Audio has taken the simple fixed PWM design approach and enhanced it with a very high switching frequency. Full-range NexD™ amplifiers and channels feature a variable, ultra-high speed version of the NexD™ technology (switching at well over 400 kHz). In these designs, a self-oscillating modulator with "feed-forward" sends information about the instantaneous power supply voltage to the modulator, combining this with the input signal to cancel out any distortion due to supply voltage fluctuation. This reduces distortion prior to applying feedback, simplifying the overall feedback loop design.
Check out the JL Audio XD400/4v2 Owner's Manual
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(newest, current model)
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(previous model, replaced by JL Audio XDM400/4)
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(previous model, replaced by JL Audio XD400/4v2)
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Internal Product ID:
81602
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Great Sounding Amp
I love the quality of the sound that comes from this amp. I just wished I had the clipping light on this unit as it does on the RD400/4. The only reason I went with the XD400/4 over the RD400/4 is the signal to noise (dB) on the XD amp.
The XD series also comes with a 2 year warranty as opposed to a 1 year warranty on the RD series amps
47
found this helpful.Awesome little amp
Needed an amp to fit where the stock Monsoon amp was in a 4th gen f-body. This amp fit on the original amp bracket without any problem. Hooked up to two pairs of jl audio c2-650x coaxials it's the prefect amount of power.
Verified purchase
43
found this helpful.Surprisingly powerful.
I’m impressed. I was running 3 separate amps to power 4 pair of JL speakers in my doors and one pair in the dash. I replaced them with this amp. Much cleaner looking and sounding. My subs are stronger because I’m drawing less power. My other amps were running warm and shutting down so I like that this has a cool down mode. Easy to hook up and install. The best terminals of any amp. Just ordered one more for my dash and will drive extra tweeters off the other channel. Never hurt to flash JL too.
Verified purchase
41
found this helpful.clean clean & clear
geese may i just inform you that this amp does not stop the sound quality it delivers is simply outstanding, thank you Sonic for making my music experience pleasurable.
Verified purchase
41
found this helpful.Amazing sound
Matched with JL audio c2 speakers this amp provides great crisp sound. The roll back feature is a cool feature that the amp will never shut off due to heat.
Verified purchase
38
found this helpful.Two words... Sound Quality!
I was using a JP 4 channel amplifier prior to installing this. There was this annoying whining sounds when the volume was down. I checked all my grounds and even added a ground to make sure I was good. Sound never went away. I actually tried the class D JP 4 channel and the class AB JP 4 channel amplifiers, they both had that sound. I decided to stop being cheap and get an Amplifier from a reputable company. This amp provides all the power I need to my infinity kappa component sets . Sound is clean, clear, and crisp. Also, that annoying whining sound is gone. It's crazy how quality equipment just performs cheaper equipment in areas other that power. Power is cheap these days but quality of components is not. I was a JL guy back in the 90s but gave some of the cheaper products a shot. Ill put my money of the quality stuff... JL being one of them. Hopefully this review helps someone.
Verified purchase
30
found this helpful.Great súper amp !!!
Verified purchase
18
found this helpful.Great value for JL audio and love the compact design!
Verified purchase
7
found this helpful.
Flush Mount & Universal via RCA. Works with any amp, controls your bass output
The XLOC44X helps you easily integrate with your factory or aftermarket system
16.4 ft. of 4-Channel X-Series RCA Cable with Dual Twisted Pair Hyper-Flex Technology
5 Meters (16.4 ft.) 4-Channel RCA Audio Interconnect Cable with Dual Twisted Pair Hyper-Flex Technology
Great for isolating a second batter making it dedicated to the stereo system
Great for isolating a second batter making it dedicated to the stereo system
Does not create a voltage drop to the second battery like conventional isolators
Spade Terminals • 8 Gauge • 1 Red & 1 Black • Nickel Plated
0.25 Meter (0.86 ft) Hyper-Flex RCA cable w/ Serpentine-Cut Nickel Plated Connectors
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