R-A90S 6-channel Class D Hi-Res amplifier

Alpine

Discontinued

Your price:
€ 569,00
Price per single item (VAT included)
Amplifier Type
6 channels
Amplifier Class
D
RMS Power 4 Ohm
4x75 + 2x150 Watt
RMS Power 2 Ohm
4x100 + 2x250 Watt
Signal-to-Noise Ratio
103 dB S/N
Total Harmonic Distortion
0,02 % THD
S/PDIF Digital Input
No
High Level Input
YES
Crossover
Yes
Size
273 x 200 x 50,8 mm
Weight
4,5 Kg

Alpine Series R 6-channel amplifier R-A90S for high-resolution music reproduction. This is one of the most versatile 6-channel Class D amplifiers on the market, featuring an exclusive staggered power channel layout that has double the power on the last two channels, as well as built-in high-pass and low-pass filters to build any type of audio system.

R-A90S 6/5/4/3-channel amplifier with staggered power: 4x75 Watts + 2x150 Watts or 4x75 Watts + 1x500 Watts RMS.

Series R products have been designed to sound loud and deliver an audio experience at high levels of quality. All components have been designed to be perfectly compatible with each other.

Listen to the perfection you've never heard before. The R-A90S maintains extremely low phase shift across the entire music spectrum that minimizes imperfections and makes the track you're listening to faithful to the original version. With high-resolution frequency response, the R-A90S can reproduce sound with incredible precision that reflects the artist's original touch.

For the best possible acoustic experience, use the band-pass, high-pass or low-pass filter to individually power each component of the system and assign frequency bands for accurate and real reproduction.

Compact and powerful: the new digital amplification circuit allows high output power while maintaining a compact footprint. The R-A90S measures only 324 mm in width and 273 mm in length for easier installation. The logo, positioned in the center, can be adjusted based on the installation position, vertically or horizontally.

The 6-channel RCA speaker input signal accepts low and high power signals. This simplifies connecting the R-A90S directly to the original radio, regardless of the original radio's output power. The power cable terminal accepts thick cables up to 4 AWG.

The 5th and 6th channel of R-A90 can be joined together to provide more power up to 500 Watts RMS @ 4 Ohms to the subwoofer. The R-A90S has a truly unique staggered power channel configuration that doubles the power on the last two channels. This means you can set the amplifier to have 4x75 Watts + 2x150 Watts to run 3 separate subs, or configure it to 4x75 Watts + 1x500 Watts to run a subwoofer at maximum power.

It is possible to connect the RUX-KNOB2 (optional) to the R-A90S to control the subwoofer (channel 5-6) directly from the dashboard.

Alpine R-A90S technical features

Terminal Layout: one side
Compact footprint for easy installation
Screw terminals (for speakers and power cables)

Amplifier Type: Class D (digital)
Channel Design: 6/5/4/3 Channel Design with Ch 5 + 6 Power Stagger Feature
Thermal management control
Power / status LED indicator mounted on top
Speaker level input with remote turn-on
Crossover: adjustable low-pass filter (LPF), high-pass filter (HPF) and band-pass filter
Gain: adjustable
Bass EQ
Bass remote control (RUX-KNOB2) optional

Maximum total power: 1800 W.
Nominal RMS power
Per channel at 2 ohms, 14.4 V (≤1% THD + N): 4 x 100 W + 2 x 250 W
Per channel at 4 ohms, 14.4 V (≤1% THD + N): 4 x 75 W + 2 x 150 W
Per channel at 4 ohms, 14.4 V (≤1% THD + N): 4 x 75 W + 1 x 500 W (bridged)
Per channel at 4 ohms, 14.4 V (≤1% THD + N): 2 x 150 W + 1 x 500 W (bridged)
Sound Tuning
Variable HPF / HPF-H: 50Hz - 400Hz / 400Hz - 6kHz
LPF: 50 Hz - 400 Hz
BPF-L / BPF-H: 50 Hz - 400 Hz / 400 Hz - 6 kHz

Power Requirements: 14.4 V DC (9-16 V allowed)
Input Sensitivity (RCA input): High: 0.5 V - 10 V / Low: 0.2 V - 4.0 V.
High level input with automatic turn-on
Cable Size: power cable AWG 4, SPK cable AWG 8
Frequency Response (+ 0 / -3dB: 1W at 4 Ohm): 10Hz - 45kHz
THD + N (@ 10W at 4 Ohm): <0.02%
Nominal power THD + N at 4 Ohm): <0.03%
Damping Factor: > 500 (ref. 10 W at 4 Ohm at 100 Hz)
Signal to Noise (nominal power at 4 ohms): > 103dB (Ch 1-4) / > 106dB (Ch 5 + 6)

Weight: 4.52 kg

Dimensions (L x H x D) mm: 273 x 50.8 x 200
Dimensions with brackets (L x H x D) mm: 273 x 50.8 x 324

Discontinued