Alpine R-A90S 6-Channel 75W RMS x 4 + 150 x 2 R-Series Amplifier

R-A90S

PRODUCT OVERVIEW

Immerse Yourself in Alpine Sound with the Hi-Res R-A90S 6-Channel Power Amplifier. With the highest power output in its category, you’ll hear the hair-raising details of your music with the most accurate sound reproduction for music that stays true to the artist’s intention.

STAGGERED POWER The most versatile amplifier in its class, the R-A90S has a staggered power channel layout that has double the amount of power on the 5th and 6th channels. With built-in bandpass, high pass, or low pass, the R-A90S can be used in various layouts for ultimate sound system flexibility.

ACCURATE IMAGING The R-A90S has a smart and simplified circuit design along with dual post-filter feedback loops that correct internal noise and minimize phase shift. With the lowest phase shift of its kind, the R-A90s can deliver a proper center sound stage for more accurate music reproduction.

HI-RES SOUND 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 for Hi-Resolution sound.

• 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. Utilizing custom Alpine internal components, this powerhouse amp is able to achieve remarkable levels of staggered output with precision accuracy and dynamics.

•  A 6-Channel Amp with 5-Channel Power – With double the power on the last two channels, the R-A90S’s 5th and 6th channels can be bridged to provide up to 500 watts at 4ohms to a subwoofer system such as a pair of S-SB12V’s.

•  An Amp That Grows with You – When you’re ready to upgrade your Alpine system, use the R-A90S to amplify a 3-way active system with enough mid-bass power to create the up-front bass impact you crave.

• Accurate Sound Reproduction – With incredibly low phase shift and hi-resolution frequency response, the R-A90S can reproduce sound with incredible accuracy that stays true to the artist’s intention.

TECH SPECS

• Hi-Resolution Audio Compliant (40k Hz) 
• CTA-2006 
• Alpine’s Class D Amplifier Circuit 
• 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) 
• S/N > 85dB (ref. 1W into 4Ω)
• THD + N < 0.03% (ref. 10W into 4Ω)
• Frequency response: 10-45kHz (0/-3dB)
• Damping factor > 500 
• RUX-KNOB.2 Remote Bass Control Knob ready (sold separately)

PERFORMANCE SPECS