๐ Maximize Your Soundstage: Alpine R-A90S 6-Channel Car Amplifier ๐ถ๐
If you want to build a complete, balanced car audio system, the Alpine R-A90S car amplifier delivers elite performance with room to grow. This powerful 6-channel amp supports multiple speakers and subwoofers in a single compact chassis. Designed for audio enthusiasts who crave detail, clarity, and headroom, the R-A90S is the amplifier that brings your system to life.
Whether you're upgrading factory speakers or building a custom setup, this car amplifier provides reliable, clean, and powerful performance from every channel.
โก Six Channels of Flexible, Balanced Power
The Alpine R-A90S is a 6-channel Class-D amplifier engineered for serious audio builds. With independent power for front, rear, and sub channels, it creates a full soundstage.
Power Output Breakdown:
- 
75W RMS x 4 + 150W RMS x 2 at 4 ohms 
- 
100W RMS x 4 + 250W RMS x 2 at 2 ohms 
- 
Bridgeable for 200W x 2 + 250W x 2 at 4 ohms 
This amplifier is ideal for running a 3-way active system or a 4-speaker setup with dual subwoofers. No external processor needed.
๐๏ธ Built for System Versatility
What sets the R-A90S apart is its ability to power an entire system from one chassis. You can run tweeters, midrange drivers, and subwoofers with individual control.
Configuration Options:
This flexibility makes the R-A90S perfect for future upgrades without replacing components.
๐ Compact Size with Clean Aesthetics
Despite its impressive output, the Alpine R-A90S is sleek and install-friendly. The modern design complements other Alpine R-Series components for a unified look.
Design Highlights:
- 
Compact aluminum chassis for heat dissipation 
- 
Brushed metal finish with illuminated logo 
- 
Hidden terminals for clean wiring 
- 
Easy-to-access tuning controls under panel 
It fits under seats or in custom enclosures, making it installer-friendly and visually appealing.
๐ Precise Sound Control
This car amplifier gives you the tools to dial in your sound. Each pair of channels has its own high- and low-pass filters.
Tuning Features:
- 
Fully adjustable crossovers per channel set 
- 
Subwoofer channels include variable low-pass and bass EQ 
- 
Input level controls for signal matching 
- 
Remote sub level input compatible (sold separately) 
Enjoy tight control and fine-tuned response for every speaker and sub in your system.
๐ High-Level Input Ready
Integrating this amplifier into your factory audio system is easy. The R-A90S includes high-level speaker inputs, allowing direct connection without signal converters.
Integration Details:
- 
High- and low-level inputs with auto turn-on 
- 
Remote sensing input for factory head units 
- 
4-volt RCA preamp outputs 
- 
Clean signal transfer with low distortion 
This amplifier works well with factory or aftermarket head units.
๐ Upgrade Your Build with More Amplifiers
Want to explore more options? Check out our full car amplifier collection for mono, 2-channel, and multi-channel amps that suit every vehicle and build.
Also, complete your upgrade by adding privacy and comfort. Explore car window tinting for UV protection, reduced heat, and improved vehicle aesthetics.
๐ ๏ธ Audio Jam Makes It Easy
At Audio Jam, we donโt just sell car amplifiersโwe install and tune them to perfection. Let our experts build your dream system.
๐ Location: 227 Governors Pl, Bear, DE 19701
๐ Phone: (302) 832-2868
๐ Website: www.audiojamonline.com
Your perfect sound starts here.
โ Frequently Asked Questions
Q1: Can the R-A90S power my entire system?
Yes. It supports speakers and subs in various configurations from one compact unit.
Q2: Is this amplifier compatible with my factory stereo?
Yes. It includes high-level inputs and auto sensing, making factory integration simple.
Q3: Can I bridge channels for more power?
Absolutely. You can bridge channels to increase output for midbass or subwoofer setups.