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X-Series amplifiers are built on a new Alpine-proprietary circuit design that achieves class-leading power density and reliability while performing at the top of its class. By simplifying the circuit topology, Alpine is able to ensure the cleanest possibl

Alpine® 5-Channel Power Amplifier

Remote Bass (RUX-KNOB or RUX-KNOB.2) Compatible

Alpine’s top engineers from all over the world gathered in Alpine headquarters to deeply research and evaluate sound systems from both the aftermarket and high-end OE manufacturers. Many systems today have incredible dynamic range and reach sufficient volume levels, but lacked the reality of instruments and spatial imaging. As a result, Alpine ID was born, a sound philosophy that continues to inspire us to create a new level of sonic performance.

Or Alpine ID for short, is the new Alpine global sound culture with an evolutionary approach for solving what’s missing in most car audio systems these days: great spatial imaging and depth of sound stage. It centers on developing matched sound systems with core components that work together to achieve greater realism in the sound stage while maintaining great dynamic range and accuracy.

Keeping The Heat Down While Faithfully Reproducing Music

At the core of the X-Series Amplifier’s chassis is a solid cast aluminum heat sink which keeps the amplifier cool when performing at its peak power levels. Excess heat is removed from the amplifier through the newly designed heat sink profile which both improves airflow and increases surface cooling area. The fan-less channels located on both sides of the amp allow for convection flow of air; hot air naturally rises out from the top of the amplifier, which causes a vacuum that sucks in cool air from below. This smart design allows for continuous thermal control for an uninterrupted listening experience.

X-Series Amplifiers come with their very own birth sheet which reveals each amplifier’s true power rating.

High Performance While Retaining Class-Leading Power Density

X-Series amplifiers are built on a new Alpine-proprietary circuit design that achieves class-leading power density and reliability while performing at the top of its class. By simplifying the circuit topology, Alpine is able to ensure the cleanest possible signal path. While the simplicity of the circuit contributes to a great sounding signal, we added an exclusive dual feedback loop that corrects signal distortion. This clever design results in a frequency response that not only meets the Hi-Rez audio standard of 40kHz but even extends up to 60kHz. The amp maintains a very low phase shift throughout the music spectrum which allows your music stay faithful to the original recording with realism that puts you in the center of the performance.

X-Series amplifiers are built on a new Alpine-proprietary circuit design that achieves class-leading power density and reliability while performing at the top of its class. By simplifying the circuit topology, Alpine is able to ensure the cleanest possible signal path. While the simplicity of the circuit contributes to a great sounding signal, we added an exclusive dual feedback loop that corrects signal distortion.

Kenwood's Excelon Reference Series XR901-5 amp can power your entire audio system while taking up an astonishingly small amount of space — it's smaller than a 2" stack of computer paper.

Kenwood Class D 5 Channel Power Amplifier

Rich and Immersive  High-Resolution Audio

High-Resolution Audio is high-quality sound that exceeds CD standard. High-resolution audio captures and beautifully expresses all the details of your favorite music. Through ultra-high and low frequencies, immerse yourself in a rich and high-quality sonic experience.

Special capacitors and inductors have been carefully selected for the digital amplifier’s LC filter, which is essential for achieving highresolution audio. These high-performance parts reduce noise and distortion and ensure excellent sound quality.

By using a down-firing subwoofer and superior technologies, the audio system generates high-quality sound and powerful bass, while still being compact.

The feedback value of the current XR Amplifier has been optimized to improve the S/N ratio. As a result, the noise level has been reduced by up to 40%.

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.

The wired remote control allows you to adjust the volume of a subwoofer when connected to the head unit.

Operating Voltage: 14.4V (11 - 16 V allowable)

Dimensions (W x H x D): 260 x 51 x 169 mm (10-1/4 x 2 x 6-5/8)

Kenwood's Excelon X802-5 five-channel amplifier delivers 50 watts RMS to each of your front and rear speakers, while sending up to 500 watts RMS to a subwoofer.

Size (inch) (W) 9-3/4" x (H) 2-1/16" x (D) 6-5/8"

Prevents magnetic flux from radiating from the subwoofer's coil, resulting in reduced noise and enhanced sound quality.

Detachable sliding terminal cover offers a sleek design and easier installation.

All terminals and connections are on one side for easier installation and a cleaner look.

Speaker Level Input Harness is included to connect to speaker wires from factory installed receivers.

The optional KCA-RC01A wired remote level control allows you to easily adjust the subwoofer volume.

Max Power

RMS Power Output (4 Ohms)

RMS Power Output (2 Ohms)

RMS Power Output Bridged

Dimensions

Weight

S-Series amplifiers are your sound system’s workhorse. With unmatched reliability and budget-friendly prices, these amplifiers are the better choice in performance value.

Alpine® S-Series 5-Channel Power Amplifier

CTA-2006-B Power Rating:  40W RMS x 4 + 200W RMS x 1 (4ohm, 14.4V = 1% THD+N); 60W RMS x 4 + 300W RMS x 1 (2ohm, 14.4V = 1% THD+N)

Bridged: 120W RMS x 2 (4ohm, 14.4V = 1% THD+N)

S/N ratio: >83dB (CH1-5 [ref: 1W into 4 ohm]), >98dB (CH1-4)/104dB (CH5) (ref: rated power into 4 ohm)

Damping Factor: CH 1/2/3/4 > 100, Ch 5 > 750

Remote bass knob compatible (requires RUX-KNOB.2, sold separately)

Perfect for beginners and enthusiasts alike, the S-Series amplifiers have the technology to improve your music experience yet are still friendly on your wallet. Used in conjunction with our advanced S-Series speakers and subwoofers, they create a complete sound system that takes your in-vehicle music experience to the next level.

The S-Series amplifiers are designed to fit anywhere. The S-A55V 5-Channel model measures at 11.25” W x 8” H x 2.25” D and can be mounted under seats or behind panels. It proves to be the all-in-one solution for a multi-amp system, so you can enjoy big power output in a limited installation space.

The S-Series amplifiers contain technology that was previously only available in our premium line up of amplifiers, the R- and X-Series models. The S-Series models are based on Alpine’s intelligent amplifier platform that ensures superior sound reproduction and precision imaging. With an improved heat sink, and protection circuit design that eliminates thermal shut-down, your music will keep playing no matter where your drive takes you.

Primed for Performance, the R2-750X5 amplifier is a 750 watt, full-range class-D, capable of operating at 4Ohms or 2Ohms stereo, and 4Ohms bridged/mono with a subwoofer channel that can be run at 4O or 2O. This amplifier is extremely efficient because of 

Rockford Fosgate® Prime 750 Watt 5-Channel Amplifier

The Prime Series were developed for car audio fanatics that want a reliable amplifier – with all the power and performance you’ve come to expect from Rockford Fosgate – at an economical price. Rockford Fosgate amplifiers are renowned world-wide for being “under rated,” easily surpassing all specifications, and most importantly, generating more power than their ratings. The latest generation of Prime Series amplifiers are also designed to be easy to setup and configure, making them perfect for use with factory audio or custom aftermarket systems.

Balanced Differential Inputs with RCA Pass Through Outputs

Auto-Sense bypass switch for vehicles with RAP (Retained Accessory Power)

Front, Rear and Sub Variable Input Gain adjustment level

Fully Adjustable 12 dB/octave High and Low pass Butterworth Crossovers

Power ratings on Rockford Fosgate amplifiers conform to CEA-2006 industry standards. These guidelines mean your amplifier's output power ratings are REAL POWER numbers, not inflated marketing ratings.

A full-range version of the Class-D topology which is a high efficiency amplifier design that reduces current consumption from the charging system.

C.L.E.A.N. (Calibrated Level Eliminates Audible Noise) is a patented circuit with in/out clip LEDs to help match a source to amp and optimize output.

Maximum Efficiency Heat Sink Application (4th Generation)

MEHSA4 reduces MOSFET temperatures, lowers distortion, increases durability and prolongs the output device life span.

Differential inputs eliminate noise picked up by signal cables.

NOMAD is a "real time" analog computer that protects your amplifier from shorting speaker wires and dangerously low speaker impedances.

During demanding musical conditions, the amplifier can dynamically reduce demand to prevent stress on the output devices.

This product fulfills all essential safety and environmental requirements as defined in the European Directives (768/2008 EC).

Primed for Performance, the R2-750X5 amplifier is a 750 watt, full-range class-D, capable of operating at 4Ohms or 2Ohms stereo, and 4Ohms bridged/mono with a subwoofer channel that can be run at 4O or 2O. This amplifier is extremely efficient because of its class D technology which reduces demand on the vehicles electrical system. The amp also features C.L.E.A.N. circuitry to help you adjust your gain settings, a P.O.W.E.R. Supply that generates more power as voltage increases, and integrated Punch EQ that corrects for acoustic deficiencies while delivering up to 3X the bass.

Experience your music in Hi-Res with the versatile R-A90S 6-Channel Amplifier for hair-raising details that puts you in the center of the performance.

Alpine® R-A90S R-Series 6/5/4/3 Channel Power Amplifier

Remote Bass-Knob ready with the RUX-KNOB.2 (sold separately)

Optimized for Alpine’s R-Series Sound System

75W x 4 + 150W x 2 (4Ω, 14.4V, < 1% THD +N)

100W x 4 + 250W x 2 (2Ω, 14.4V, < 1% THD +N)

Bridged: 200W x 2 + 500W x 1 (4Ω, 14.4V, < 1% THD +N)

The R-A90S features a staggered power channel layout that allows each channel to host different levels of power, compared to traditional, multi-channel amplifiers. This allows the R-A90S to effectively function as both a 3-way active amplifier and a 5-channel amplifier by delivering the power you need to the channels where you need it the most. Now you can use one amplifier to either power an active 3-way sound system or use it to power your speakers and subwoofer without the bulk of an additional amplifier.

Hear the subtle details you’ve been missing in your music with the R-A90S. With the highest power output in its category, the R-A90S drives power to your sound system to create a big dynamic music range for the listener, reproducing high-frequency sounds up to 45k Hz, making the R-A90S Hi-Res Audio Compliant.

5+ Channel Amps

Alpine® 5-Channel Power Amplifier

$899.95

Alpine® R-A90S R-Series 6/5/4/3 Channel Power Amplifier

$599.95

Alpine® S-Series 5-Channel Power Amplifier

$429.95

Kenwood Class D 5 Channel Power Amplifier

$650.00

Kenwood Class D 5 Channel Power Amplifier

$450.00

Rockford Fosgate® Prime 750 Watt 5-Channel Amplifier

$489.95

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