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

Experience your music in high resolution through the versatile R-A90S 6-Channel Amplifier for hair raising details that puts you in the center of the performance.

Through double the power on the last 2-Channels, the R-A90S's 5- and 6-Channels can be bridged to provide up to 500 W at 4 Ω to a subwoofer system such as a pair of S-SB12V's.

When you're ready to upgrade your Alpine system, use the R-A90S to amplify a 3 way active system through enough mid bass power to create the up front bass impact you crave.

Through incredibly low phase shift and high resolution frequency response, the R-A90S can reproduce sound through incredible accuracy that stays true to the artist's intention.

The R-A90S has dual "sierra" post filter feedback loop that correct signal distortion by making the output as close as possible to the original input for accurate sound reproduction.

Use the built in band and high or low pass filter to individually Power each component in your sound system and assign frequency bands for accurate and reliable sound reproduction.

The KTA-200M has input capability to add the optional RUX-H01 remote bass control knob for quick bass adjustments when needed.

Features:

• 12.8 x 10.8 x 2"
• High resolution audio compliant (40 kHz)
• Alpine's class-D Amplifier circuit
• 75 W x 4 + 150 W x 2 (4 Ω, 14.4 V, < 1 % THD + N)
• 100 W x 4 + 250 W x 2 (2 Ω, 14.4 V, < 1 % THD + N)
• Bridged: 200 W x 2 + 500 W x 1 (4 Ω, 14.4 V, < 1 % THD + N)
• S / N > 85 dB (reference 1 W into 4 Ω)
• THD + N < 0.0 % (reference 10 W into 4 Ω)
• Frequency response: 10 - 45 kHz (0 / - 3 dB)
• Damping factor > 500
• CTA-2006