Alpine R-A90S: High-Performance 6-Channel Amplifier for Dynamic Sound and System Flexibility

Introduction

Elevate your car audio system with the Alpine R-A90S 6-Channel Digital Amplifier, a versatile powerhouse designed to deliver premium sound clarity and robust performance. Featuring advanced Class D technology and multi-channel flexibility, this amplifier powers your entire sound system, including speakers and subwoofers, for a dynamic and immersive audio experience. Perfect for audiophiles and enthusiasts, the R-A90S provides clean, distortion-free power to bring your music to life.

Compact and Flexible Design

The R-A90S is engineered with a sleek, space-saving design that allows for easy installation in a variety of vehicles. Its 6-channel configuration supports multiple system setups, offering flexibility whether you’re powering a full-range system or bridging channels for a high-powered output.

Powerful and Versatile Output

Delivering 75 watts RMS x 6 channels at 4 ohms and 150 watts RMS x 6 channels at 2 ohms, the R-A90S ensures every speaker in your system receives the power needed for optimal performance. When bridged, it offers 300 watts RMS x 3 channels, providing ample power for subwoofers or high-performance speakers.

Advanced Audio Features

The amplifier includes variable high-pass and low-pass crossovers and a band-pass filter, allowing precise frequency adjustments for your audio system. Its signal-sensing inputs ensure easy integration with factory or aftermarket head units, while low distortion levels guarantee crystal-clear sound.

Rugged and Reliable Construction

Built to last, the R-A90S features a robust aluminum heat sink for efficient cooling and long-term reliability. Advanced protection circuitry safeguards against overheating, overloading, and short circuits, ensuring consistent performance even during demanding use.

What's in the Box

• Alpine R-A90S 6-channel digital amplifier
• Mounting hardware (brackets, screws, and clips)
• Plug-and-play wiring harness
• User manual and installation guide

Key Features

• 6-Channel Configuration: Supports versatile system setups for full-range speakers and subwoofers.
• Powerful Output: 75W RMS x 6 channels at 4 ohms or 300W RMS x 3 channels bridged for robust performance.
• Class D Technology: Efficient design minimizes heat and delivers clean power output.
• Advanced Crossovers: Includes variable high-pass, low-pass, and band-pass filters for precise tuning.
• Signal-Sensing Inputs: Simplifies integration with factory and aftermarket systems.
• Durable Construction: Aluminum heat sink and protection circuitry ensure long-lasting reliability.

Why Choose the Alpine R-A90S?

The Alpine R-A90S is a versatile and powerful solution for car audio enthusiasts who demand premium performance and system flexibility. Whether powering a multi-speaker setup or driving subwoofers, this amplifier delivers dynamic, distortion-free sound in a compact, reliable package.

Frequently Asked Questions

Q: What is the power output of the R-A90S?
A: The R-A90S delivers 75 watts RMS x 6 channels at 4 ohms, 150 watts RMS x 6 channels at 2 ohms, or 300 watts RMS x 3 channels bridged.

Q: Can this amplifier power subwoofers?
A: Yes, the R-A90S can be configured to power subwoofers when channels are bridged for high output.

Q: Is professional installation required?
A: While not required, professional installation is recommended for optimal performance and system setup.

Q: Does the amplifier support factory head units?
A: Yes, the R-A90S integrates with factory systems using signal-sensing inputs for seamless compatibility.

Q: What protection features are included?
A: The amplifier includes safeguards against overheating, overloading, and short circuits for reliable operation.