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Kenwood Excelon XR-4S

4-channel car amplifier — 120 watts RMS x 4 at 4 ohms (New Stock)

Item # 113XR4S

You can add a dose of potent power to your system, thanks to the special design of the Kenwood Excelon XR-4S amplifier.

Find what Fits your car

You can add a dose of potent power to your system, thanks to the special design of the Kenwood Excelon XR-4S amplifier.

Discontinued item

Item # 113XR4S

About the Kenwood Excelon XR-4S

You can add a dose of potent power to your system, thanks to the special design of the Kenwood Excelon XR-4S amplifier. Its dual power supplies and efficient Class D design let this amp deliver massive amounts of power to your speakers from a compact chassis that'll fit in more places than traditional amps can.

You can add a dose of potent power to your system, thanks to the special design of the Kenwood Excelon XR-4S amplifier. Its dual power supplies and efficient Class D design let this amp deliver massive amounts of power to your speakers from a compact chassis that'll fit in more places than traditional amps can.

The XR-4S offers impressive versatility when it comes to setting up your system. You can use it in 4-channel mode to drive your front and rear speakers, with 120 watts RMS per channel. You can also set it to bi-amp mode when you're powering a component speaker system, and drive the tweeters with the front channels and the midrange speakers with the rear channels.

Got a sub? You can bridge the rear channels to drive a subwoofer, while the front channels power your full-range speakers. The built-in high- and low-pass filters let you tailor the amp's output so you can dial in the best possible performance for the speakers in your vehicle.

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Product highlights:

  • 4-channel amplifier
  • 120 watts RMS x 4 at 4 ohms (150 watts RMS x 4 at 2 ohms)
  • 300 watts RMS x 2 bridged output at 4 ohms (4-ohm stable in bridged mode)
  • CEA-2006 compliant
  • variable high- and low-pass filters (50-200 Hz; 2.5K-10k Hz, 12 dB/octave)
  • Class-D amplifier design
  • frequency response: 20-20k Hz
  • preamp inputs
  • fuse rating: 30A x 2
  • 4-gauge power and ground leads recommended — wiring and hardware not included with amplifier
  • 9-1/4"W x 2-1/16"H x 7-9/16"D
  • warranty: 2 years
  • Our 60-day money-back guarantee
  • MFR # XR-4S

What's in the box:

  • 4-Channel Excelon amplifier
  • Two 30-amp ATO fuses (installed)
  • 4 Self-tapping screws
  • Rubber terminal cover
  • 4mm Allen wrench
  • 2.5mm Allen wrench
  • Instruction Manual (English/ French/ Spanish)
  • Warranty Card

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More details on the Kenwood Excelon XR-4S

Mark G.

Product Research

Features
Controls
Connections

Features

CEA 2006 Compliant: The XR-4S's power ratings are measured according to the strict standards dictated by the Consumer Electronics Association (CEA). These standards allow you to accurately compare the rated power output of all CEA 2006-compliant amplifiers. Manufacturers who adhere to the standards can display the CEA 2006 logo on their products and packaging. The amplifier features the following power specifications:

  • 4-Ohm RMS Power Rating: 120 watts x 4-channels into 4-ohms, measured from 20-20 kHz, at 14.4 volts, with no more than 1% THD+noise
  • Bridged RMS Power Rating: 300 watts x 2-channels into 4-ohms at 1 kHz with 1% THD
  • 2-Ohm RMS Power Rating: 150 watts x 4-channels into 2-ohms at 1 kHz with 1% THD
  • Max Power Output: 1200 watts (300 watts x 4-channels) Peak

Class D Amplifier: Class D amps are very efficient and their small size offers installation flexibility. Class-D amplifiers overcome the inefficiencies of traditional Class-A or AB amplifiers. Class-D amplifiers transform very little power into heat, so a higher percentage of the power supply is transformed into the load. This results in a very compact amp which needs less input power to produce very high output power.

Dual Power Supply: This design provides one power supply for positive current and one power supply for negative current. The result is a cleaner voltage source, fewer failures due to short circuit, less power loss due to variances in transformer tolerances, and less transformer noise even when the positive and negative loads are unstable.

Cooling Fan: There is a cooling fan and vents on each side of the amplifier to help dissipate heat and ensure cool, reliable operation. Make sure not to block these vents or the fan when you install the amplifier.

Protection circuitry: The XR-4S features protection circuits that will turn the amp off in case of the following events:

  • Speaker wire short-circuits
  • Speaker output contacts ground
  • Amp overheats
  • Unit malfunctions and DC is sent to speaker output

Controls

Input Sensitivity: The XR-4S features two gain controls, one for each 2-channel section of the amplifier (A and B). The input sensitivity of each is adjustable from 0.2 volts to 5.0 volts.

Input Select: Set the input select to AB when using both line inputs; set to A when using only one set of inputs to feed all four amplifier channels.

Filter Switch: The A and B sections of the amplifier have individual switches to set the crossover to low-pass, off (full range), or high-pass.

Frequency Range: The A and B sections of the amplifier have individual switches to set the crossover frequency range to high (2.5 kHz to 10 kHz) or low (50 Hz to 200 Hz).

Filter Frequency: The continuously variable crossover frequency range changes depending on the setting of the Frequency Range switch; 50 Hz to 200 Hz in the low position, 2.5 kHz to 10 kHz in the high position. The filter frequency is individually adjustable for the A and B sides of the amplifier.

Connections

Power And Ground Terminals: The amplifier features Allen head set-screw Power and Ground terminals that will accommodate up to 4 gauge wire. 6 gauge minimum is recommended.

Remote Turn-On Terminal: The remote turn-on is an Allen head set-screw terminal that will accommodate up to 8 gauge wire.

Speaker Terminals: The four speaker terminals are Allen head set-screw terminals that will accommodate up to 8 gauge wire. 12 gauge minimum is recommended.

RCA Inputs: The amplifier features two pair of gold-plated RCA input connections.

Fuse: The amplifier contains two 30-amp fuses.

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