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Alpine  R-A90S-OB

R-Series 100W x 4 RMS + 250W x 2 RMS @2Ohm 6/5/4/3 Channel Power Amplifier with Staggered Power

Item #89708

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

Alpine_iLX-407

We are an Alpine authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!

What's Inside?
  • • 6-Channel amplifier
  • • (3) 30-amp ATO fuses (installed)
  • • (4) Mounting feet
  • • (4) 3/4" Screws
  • • (8) M2.5x5.5mm Machine screws
  • • 2mm Allen wrench
  • • 3mm Allen wrench
  • • Owner's manual (English/ French/ Spanish)
  • • Alpine Verification Certificate
  • • Warranty information
Alpine_R-A90S
6-CHANNEL AMP WITH 5-CHANNEL POWER

The R-A90S has a unique staggered power channel layout that has double the power on the last two channels. When looking to power a dual subwoofer configuration, the R-A90S’s 5th and 6th channels can be bridged to provide up to 500-watts at 4?. The R-A90S is matched in power and performance for the Dual 10-inch Alpine Halo S-Series Preloaded Subwoofer Enclosures with ProLink™.

AN AMP THE GROWS WITH YOU

Thanks to the unique staggered power channel layout, the R-A90S can host different levels of power on each channel, compared to traditional, multi-channel amplifiers. This allows the R-A90S to grow with you as it can 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.

 

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Alpine_R-A90S
ACCURATE SOUND REPRODUCTION

Hear the subtle details you've been missing in your music. The R-A90S maintains an extremely low phase shift throughout the music spectrum, which minimizes audible imperfections in your music and allows your music to stay faithful to the original recording. With a hi-resolution frequency response, the R-A90S can reproduce sound with incredible accuracy that stays true to the artist's intention.

ALPINE EXCLUSIVE TECHNOLOGY

Using custom Alpine internal components originally launched in Alpine's premium X-Series amplifiers, the R-A90S has dual post-filter feedback loops that correct signal distortion by making the output as close as possible to the original input for accurate sound reproduction.

 

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Alpine_R-A90S
NEXT-LEVEL SYSTEM BUILDS

For the best possible sound experience, use the built-in bandpass, high pass, or low pass filter to individually power each component in your sound system and assign frequency bands for accurate and reliable sound reproduction.

REMOTE BASS KNOB-READY

The R-A90S has input capability to add an optional RUX-KNOB.2 Remote Bass Control Knob (sold separately). The remote bass knob controls the bass in your subwoofer by adjusting the gain on your amplifier for quick bass adjustments when needed.

 

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Alpine_R-A90S
OPTIMIZED FOR ALPINE'S R-SERIES SOUND SYSTEM

Alpine's R-Series line of speakers, subwoofers, and amplifiers have a heritage of sound quality that can be heard from a block away. The R-A90S is tuned to emphasize the characteristics of the RSeries speakers and subwoofers for a legendary R-Series experience.


SPECIFICATIONS


  • Maximum Power : 900 Watts
  • Number of Channels : 6
  • Frequency Response : 10-45000 Hz
  • Amplifier Class : D
  • Fuse Rating : 90 A
  • Promo : Yes

FEATURES


Features:

  • Hi-Res Audio Compliant  
  • Remote Bass-Knob ready with the RUX-KNOB.2 (sold separately) 
  • Optimized for Alpine’s R-Series Sound System

 

Specifications:

  • Hi-Resolution Audio Compliant (40k Hz) 
  • CTA-2006 
  • Alpine’s Class D Amplifier Circuit 
  • 75W x 4 + 150W x 2 (4?, 14.4V, < 1% THD +N) 
  • 100W x 4 + 250W x 2 (2?, 14.4V, < 1% THD +N) 
  • Bridged: 200W x 2 + 500W x 1 (4?, 14.4V, < 1% THD +N) 
  • S/N > 85dB (ref. 1W into 4?) 
  • THD + N < 0.03% (ref. 10W into 4?) 
  • Frequency response: 10-45kHz (0/-3dB)  
  • Damping factor > 500 
  • UPC:
  • Weight: 10
  • Authorized Internet Dealer
Warranty: 90 Days Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for repair within 1 year from the original date of purchase with proper return authorization.

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