Discounted productsSpecifications
| Brand | Alpine |
| Trade name | R-A90S |
| Model line-up | 2021 year |
| Type | car amplifier |
| Channels | six-channel |
| Rated power (4 Ohm) | 900 |
| Power of channel 1 (4 Ohm) | 75 |
| Power of channel 2 (4 Ohm) | 75 |
| Power of channel 3 (4 Ohm) | 75 |
| Power of channel 4 (4 Ohm) | 75 |
| Power of channel 5 (4 Ohm) | 150 |
| Power of channel 6 (4 Ohm) | 150 |
| Ability to work at 2 Ohms | + |
| Frequency range from | 10 Hz |
| Frequency range up to | 45000 Hz |
| Amplifier class | D |
| Warranty / Service | 12 months |
| Price per | pcs |
Terms of payment
You can buy car amplifier Alpine R-A90S in Kyiv and other cities (courier delivery around the city and Ukraine). Possible cashless payment, online payment by credit card Visa / MasterCard or payment for order upon receipt.
Description car amplifier Alpine R-A90S
Enjoy hi-res music with the versatile Alpine R-A90S 6-channel amplifier. It is designed to highlight the power of the legendary R-Series speakers and subwoofers.
Features of the R-A90S car amplifier
6-Channel Amplifier with 5-Channel Power - By doubling the power on the last two channels, the 5th and 6th channels of the R-A90S can be bridged to deliver up to 500 watts at 4 ohms. Accurate sound reproduction is achieved through incredibly low phase shift and high-resolution frequency response.
6-channel amplifier with 5-channel power supply
The R-A90S features a unique staggered power channel layout that doubles the power on the last two channels. If you need a dual subwoofer configuration, the 5th and 6th channels of the R-A90S can be bridged. This amplifier can drive dual 10 '' Alpine Halo S-Series subwoofers with ProLink presets.
The amplifier grows with you
The R-A90S can support different power levels on each channel, unlike traditional multichannel amplifiers. This allows the device to grow as it can effectively operate as a 3-way active amplifier and as a 5-channel amplifier, delivering the necessary power to the channels where it is needed.
Accurate sound reproduction
This model maintains extremely low phase shift across the entire musical spectrum, which minimizes audible defects in the music and allows the sound to remain as close to the original recording as possible.
Exclusive Alpine Technologies
Using special Alpine internals originally found in premium Alpine X-Series amplifiers, the R-A90S features dual Sierra post-filter feedback loops that correct signal distortion for the most realistic and accurate output possible.
Building a new level system
For the best sound, use the built-in bandpass, highpass, or lowpass filter to individually turn on each component in your sound system and assign frequency ranges for accurate and reliable sound reproduction.
The R-A90S has an input for connecting the RUX-KNOB.2 remote bass control unit (not included, sold separately). It can be used to control the low frequencies on the subwoofer, adjusting the power of the amplifier for quick bass adjustment.
Alpine R-A90S 
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