R-Series 6/5/4/3 Channel Power Amplifier with Staggered Power
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• 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
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.
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.
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.
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.
Maximum Power : 900 Watts
Low Frequency Response : 50-400 Hz
High Frequency Response : 50-6000 Hz
Number of Channels : 6
Frequency Response : 10-45000 Hz
Built In Crossovers : Yes
RMS Power Output : 75x4 Watts
Amplifier Class : D
Fuse Rating : 90 A
Hi-Res Audio Compliant
Remote Bass-Knob ready with the RUX-KNOB.2 (sold separately)
Optimized for Alpine’s R-Series Sound System
Hi-Resolution Audio Compliant (40k Hz)
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
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Warranty: 1 Year Manufacturer 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 replacement within 1 year from the original date of purchase with proper return authorization.
Estimated Shipping Time for Special Order items is 1-3 weeks.
You may call our Customer Service Department at 310-526-8635 for a more accurate shipping estimate.
Special Order Product
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All your purchase from our store comes with Free Lifetime Technical Support. Please call our certified technicians at 310-874-3313 for any questions about your product.
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