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Kenwood Excelon XR401-4 Reference Series 4-channel car amplifier
Clean power can transform a mediocre sound system into a great one. Kenwood's Excelon Reference Series XR401-4 4-channel amplifier will add clarity and punch to your sound, as it powers each of your front and rear speakers with 75 watts RMS. If you're adding bass first, you can use the amp in 2-channel mode to drive a couple of subwoofers with up to 200 watts RMS each. Then later you can switch the amp over to your main speakers when you get a sub amp. The XR401-4 can fit in many different places in your car because of its incredibly low profile — it's under 1-1/2" tall.
High-resolution music
This Excelon Reference Series amplifier has ultra-high-frequency response up to 40,000 Hz, reproducing sounds that help define audio tone and space even though beyond the range of hearing. Fix this amp up with a nice set of Kenwood high-res Reference Series speakers, and you can enjoy the extended detail and powerful musical imaging of your high-res FLAC or DSD files.
Designed for optimum efficiency
Kenwood packed this amp with space-saving features. Class D technology reduces the size of the power supply, while the internal heatsink is tilted to reduce height without compromising the amp's cooling system. Recessed power and speaker wire terminals help to further reduce the amp's footprint, protect the connections, and give your installation a neat, professional look.
Specialized Circuit Design
The noise reduction system employs a special layout that separates the analog circuit, digital amplifier circuit and power supply circuit. This keeps interference between the circuits to a minimum, decreasing noise and thereby achieving high performance and sound quality.
CTA-2006 Compliant
CTA-2006 is a system of testing and measurement methods for mobile audio amplifiers. This voluntary standard advocates a uniform method for measuring an amplifier's RMS power output and signal-to-noise ratio. The criteria for measuring power uses a DC input voltage of 14.4 volts and the RMS power output is measured into a 4-ohm load, with 1% or less Total Harmonic Distortion plus noise (THD+N), and over a frequency range of 20 Hz to 20 kHz, when applicable. Signal-to-Noise ratio is measured in weighted absolute decibels (dBA) at a reference of 1 watt into 4 ohms. CTA-2006 allows consumers to compare car amplifiers and receivers on an equal basis. Using CTA-2006 criteria, the Kenwood XR401-4 is rated at 75 watts RMS x 4 with a 76 dBA signal to noise ratio.
Sam
Reviewed in the United States on September 17, 2023
I have this amp powering 3 component speakers up front and 2 way speakers in the rear of my '98 Jag, coupled with a Kenwood Excelon 2 channel amp for my 10" pioneer shallow mount subwoofer absolutely amazing! All speakers except for subwoofer are Infinity Kappas. I'm hearing sounds I never heard before like the guitarist sliding his fingers along the strings.
Jamal
Reviewed in the United States on January 6, 2023
No regrets about itBest amplifier
Stressed
Reviewed in the United States on June 27, 2022
Be warned, this amp gets extremely hot and Ned’s to be in a well ventilated area and may need to have a fan installed running across it. Gets hot enough to burn unprotected skin. Hasn’t overheated and shut down, yet, but it is in a well ventilated area. Just added a fan to it.
Todd Moses
Reviewed in the United States on March 18, 2022
I got this for four 6x9's KFC . It sounds crystal clear,easy to adjust , easy to install.
Steve Broadhead
Reviewed in Canada on July 12, 2021
Looks good despite being under my drivers seat. Quality connection ports.Have 4 x 6.5" 150w capable speakers and two spliced component tweeters. Sounds great.Amp is 75w x 4 and sounds loud at anything over 22 on the volume dial. 30 is too loud (still clear).Speakers are Sound stage, head is Kenwood KDC-X704 Excelon.
jaegearman
Reviewed in the United States on May 19, 2020
I was super extremely impressed I have this amp bridged powering a pair JL audio ZR800 mid bass. Super clean and very low noise. This is coming from a Mosconi AS200.4.
y.alasoussi
Reviewed in the United States on October 29, 2020
Power punchy sill kenwood but there are much bater amps .
Willy B
Reviewed in the United States on January 21, 2020
Very clean sound, compact size and adequate power. I would like to know what the true output, kenwood does not provide amp certificate. I bet it is over the rated amount.
Reynaldo Silva
Reviewed in the United States on November 12, 2019
It met my expectations very well. Very compact and powerful. Brand already established, excellent equipment.
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