Open Box, Great - Alpine R-A90S | R Series 6/5/4/3 Channel Power Amplifier

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Product highlights

• 75 watts x 4 channel + 150 watts x 2 channel @ 4 ohm
• 100 watts x 4 channel + 250 watts x 2 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm + 500 watts x 1 channel @ 4 ohm
• Total RMS Power: 900 watts
• Class D 2 ohm Stable 6-Channel-Channel Amplifier

Learn more about the ra90s-obc8

Universal – fits most vehicles.

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List price $840.00

-29%

$594.96

with warranty

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Additional conditions

Brand new $699.95

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Current Promotions (1 offer)

Save 25% on a Compatible NVX Amplifier Wiring Kit

Pre-installed black nylon mesh covering protects the power wire from being damaged, and pre-terminated seamless power and ground ring terminals provide reliable performance and cut out the hassle when installing. This offer cannot be combined with any other coupons or offers.

Alpine R-A90S - Open Box, Great

https://images.sonicelectronix.com/images/5410017/main/xkit46.jpg

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Alpine R-A90S - Open Box, Great

$594 ⁹⁶

NVX XKIT46

$129 ⁹⁹

Priced separately $724 ⁹⁵

Promo Savings of $32 ⁵⁰

Total price:

$692 ⁴⁵

Description

Authorized dealer

Item Condition - Open Box, Great:

This product works like new, is well-cared-for and in great condition. May show limited signs of wear or use and may be missing non-essential parts, accessories or original packaging.

Staggered Power

The R-A90S 6-channel amplifier features a staggered power channel layout for ultimate sound system flexibility. The amplifier can be used to power 3-channel systems (200 W x 2, 500 W x 1), 5-channel systems (75 W x 4, 500 W x 1), or 6-channel active 3-way component systems (75 W x 4, 150 W x 2). The result is a perfectly tuned sound system that produces accurate sound images with minimal phase shift and internal noise throughout the amps Hi-Res compatible frequency response.

Accurate Sound Reproduction

With the highest power output in its category, the R-A90S drives power to the sound system to create a big dynamic music range for the listener while maintaining a proper sound stage between the singers and instruments in the music. The amplifier’s high damping factor (>500) produces crisp and clear notes, especially at low frequencies. This amplifier has an extremely low phase shift compared to its competitors, which keeps your music focused and accurate for the most enjoyable listening experience.

General Features:

Alpine Class D Amplifier
CTA-2006 Compliant
Hi-Resolution audio compliant

Power Output:

4 Ohm : 75 Watts x 4 + 150 Watts x 2
2 Ohm: 100 Watts x 4 + 250 Watts x 2
Bridged: 200 Watts x 2 + 500 Watts x 1

Signal Noise Ratio: >85db (Ref. 1 Watt into 4 Ohm)

Total Harmonic Distortion + N: ≤ 0.03% (Ref. 10 Watts into 4 Ohm)

Frequency Response: 10-45 kHz (0/-3db)

Dampening Factor > 500

4 gauge power and ground wiring is recommended for installation. Contact us for information regarding a discount on select amplifier kits from our website when purchased together with this amplifier. Click Here for our contact information.

Authorized Internet Dealer

1-year Sonic Electronix Warranty

Specifications & Details

Key Features

Amplifier Key Features

Hi-Res Audio Certified
Speaker Level Inputs

Power Specifications - Full Range Channels

RMS Power @ 4 ohms

75 watts x 4 channel

RMS Power @ 2 ohms

100 watts x 4 channel

Bridged RMS Power

200 watts x 2 channel

Power Specifications - Subwoofer Channel

RMS Power @ 4 ohms

150 watts x 2 channel

RMS Power @ 2 ohms

250 watts x 2 channel

Amplifier Specifications

Series

R-Series

Amplifier Class

Number of Channels

6-Channel

Total RMS Power Output

900 watts

Maximum Input Gauge Size

4 AWG

Minimum Impedance Unbridged

2 ohm

Minimum Impedance Bridged

4 ohms

Frequency Response

10 - 45000 Hz

THD at Rated RMS Power

Speaker Level Inputs

Yes

Built-in Crossover

Band-Pass (BP)
Low-Pass (LP)
High-Pass (HP)
Full (AP)

High-Pass Crossover Frequency

50 - 6000 Hz

Low-Pass Crossover Frequency

50 - 400 Hz

Signal-to-Noise Ratio

85 dB

Remote bass/level controller

Optional (Accessory required and sold separately)

Alpine RUX-KNOB.2

Fuse Rating

30A x 3

Total Fuse Rating

Sonic Certified Amplifier

Not Tested

Hi-Res Certified

Yes

Low-Level Input Sensitivity

0.2 - 4.0 volts

High-Level Input Sensitivity

0.5 - 10 volts

What is in the box?

Paperwork

User manual
Warranty/Registration card
Serial number card
Power certification

WITB: Amplifiers

Amplifier
Mounting Brackets
Mounting screws (4)
Three spare fuses
Allen wrenches (2)

Warranty and Return Policy

Parts Warranty Duration

1 year

Labor Warranty Duration

1 year

Warranty Provider

Sonic Electronix

Customer Ratings & Reviews

Alpine R-A90S - Open Box, Great thumbnail image

Overall rating distribution

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By feature average rating

Durability		5
Value		5
Features		5
Design		5
Usability		5

Customer Reviews

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A Crazy Versatile Amp with surprising Power

The following review is for R-A90S, which is a part of the bundle you are viewing.

Ill start with explaining why I went with this Amp. I have a 1998 Volvo S70 T5 with every option and that includes the Dolby Surround System. That system was designed as 8 Ohm. So I made the decision that I would be completely rewiring the car and removing the factory Amp. The car has a Center Speaker, 2 6.5's with dash tweeters, 2 rear door speakers that are also 6.5's and 2 8" speakers on the deck. The car is loaded with speaker locations and that left me with the need to find an Amp that can power all of this. Enter the R-A90S, With the staggered power on channels 5&6 it was the perfect opportunity to install Alpine 6x9's on the deck to replace the OEM 8" speakers. The only exception is I am running the center channel off the deck itself. Regardless this amp does a great job of giving adequate power to all the speakers. Also this Amp is putting out a health amount of power above what was advertised. Even the included Birth sheet shows their test results on the amp you receive. My amp was putting out almost 15% more power than the guaranteed values.

Bottom line is that if you are looking for an amp to power a non standard setup this Amp allows you to get creative with your install. Its fantastic! 10/10

By Matthew on May 9, 2023 Checkmark Icon

Verified purchase

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Add-ons

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6-Channel 100% OFC Complete True 4 Gauge Amp Kit with RCA Cables and Speaker Wire

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$129.99

List price $179.99

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Alpine R-A90S - Open Box, Great

$594.96

Current Promotions (1 offer)

Description

Staggered Power

Accurate Sound Reproduction

General Features:

Power Output:

Specifications & Details

Item Details

Customer Ratings & Reviews

Customer Reviews

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