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R-A90S Alpine R-Series 6/5/4/3 Channel Power Amplifier with Staggered Power 6ch Car Audio Amplifier Hi-Res Certified

R-A90S Alpine R-Series 6/5/4/3 Channel Power Amplifier with Staggered Power 6ch Car Audio Amplifier Hi-Res Certified

by Alpine
Sold out
$650.00
$650.00 - $650.00
$650.00
$599.95
$599.95 - $599.95
$599.95
🚚 Order within the next 2 hours, 15 minutes for delivery by 25 Feb, 2025.
Availability:
Out of stock

R-A90S

R-Series 6-Channel Amplifier

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.

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 4Ω. 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. 


Product highlights:

  • 6-channel car amplifier
    • 75 watts RMS x 4 + 150 watts RMS x 2 at 4 ohms
    • 100 watts RMS x 4 + 250 watts RMS x 2 at 2 ohms
    • 200 watts RMS x 2 bridged at 4 ohms + 500 watts RMS x 1 bridged at 4 ohms
  • Class D amp technology
  • Ch 1/2: selectable variable high-pass filter (50-400 Hz or 400-6000 Hz, 12 dB/octave)
  • Ch 3/4: variable high-pass or bandpass filter (50-400 Hz and 400-6000 Hz, 12 dB/octave)
  • Ch 5/6: variable low-pass filter (50-400 Hz, 12 dB/octave)
More Info:
  • GTO™ (Great Turn On) signal-sensing turn-on with Ch1/2 speaker-level input
  • preamp and speaker-level inputs
    • speaker-level inputs require RCA adapter cables
  • optional wired remote level controller available
  • fuse rating: 30A x 3
  • 4-gauge power and ground leads recommended — wiring and hardware not included with amplifier
  • dimensions: 14"W x 2-1/16"H x 10-3/4"D
  • warranty: 1 year
  • MFR # R-A90S


What's in the box:

Alpine R-A90S owner's manual


  • 6-Channel amplifier
  • Three 30-amp ATO fuses (installed)
  • 4 Mounting feet
  • Four 3/4" Screws
  • Eight M2.5x5.5mm Machine screws
  • 2mm Allen wrench
  • 3mm Allen wrench
  • Owner's manual (English/ French/ Spanish)
  • Alpine Verification Certificate
  • Warranty information
  • Power supply note
  • On-line product registration information