Alpine R2-A150M
R-Series 1500W Mono Subwoofer Amplifier
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Alpine R2-A150M R-Series 1500W Mono Subwoofer Amplifier
The Alpine R2-A150M is a high-performance mono Class D amplifier from Alpine’s next-generation R-Series lineup. Engineered to deliver up to 1500 watts RMS at 1 ohm, it provides clean, efficient power for demanding subwoofer setups. Featuring a compact chassis with a one-sided terminal layout and top-mounted controls, the R2-A150M is designed for streamlined installation and precise sound tuning. With advanced features like variable low-pass and subsonic filters, bass boost, and compatibility with Alpine’s RUX-KNOB.2 remote bass control, this amplifier is ideal for audiophiles seeking deep, impactful bass in their car audio system.
| Key Features | |
|---|---|
| Power Output | 700W RMS x 1 @ 4Ω; 1200W RMS x 1 @ 2Ω; 1500W RMS x 1 @ 1Ω |
| Amplifier Class | Class D |
| Frequency Response | 10Hz – 400Hz |
| Signal-to-Noise Ratio | >75dB |
| THD at Rated RMS Power | ≤1% |
| Crossover Controls | Variable low-pass filter (50Hz – 400Hz, 24dB/octave); Variable subsonic filter (8Hz – 40Hz, 24dB/octave) |
| Bass Boost | 0–12dB at 50Hz |
| Input Sensitivity | Low level: 0.1 – 4V; High level: 0.4 – 10V |
| Optional Remote | Compatible with Alpine RUX-KNOB.2 or RUX-H01 (sold separately) |
| Dimensions (W x H x D) | 13.5" x 2.6" x 7.3" |
| Weight | 7.1 lbs |
| What’s in the Box |
|---|
| 1 × Alpine R2-A150M Mono Subwoofer Amplifier (with six installed 25A ATO fuses) |
| 4 × Mounting Screws |
| 1 × 3mm Allen Wrench |
| 1 × 2.5mm Allen Wrench |
| 1 × Owner’s Manual |
| 1 × Alpine Verification Certificate (“Birth Sheet”) |
| 1 × Warranty Information Sheet |
| 1 × Installation Guide |
| 1 × Alpine Registration Card |
| Technical Specifications | |
|---|---|
| Model Number | R2-A150M |
| Channels | 1 (Mono) |
| Power Output @ 4Ω | 700W RMS x 1 |
| Power Output @ 2Ω | 1200W RMS x 1 |
| Power Output @ 1Ω | 1500W RMS x 1 |
| Frequency Response | 10Hz – 400Hz |
| Signal-to-Noise Ratio | >75dB |
| THD at Rated RMS Power | ≤1% |
| Input Sensitivity | Low level: 0.1 – 4V; High level: 0.4 – 10V |
| Crossover Controls | Variable low-pass filter (50Hz – 400Hz, 24dB/octave); Variable subsonic filter (8Hz – 40Hz, 24dB/octave) |
| Bass Boost | 0–12dB at 50Hz |
| Fuse Rating | 25A × 6 (150A total) |
| Recommended Wiring | 4 AWG power and ground leads |
| Dimensions (W x H x D) | 13.5" x 2.6" x 7.3" |
| Weight | 7.1 lbs |
| Optional Remote | Alpine RUX-KNOB.2 or RUX-H01 (sold separately) |
Alpine R2-A150M Next-Generation R-Series 1500W RMS x 1 at 1 Ohm, Class-D Mono Subwoofer Car Amplifier
The Alpine R2-A150M Mono Amplifier is built for those who demand nothing less than raw, powerful bass with pristine clarity. Designed using Alpine’s latest Class-D amplifier technology, it delivers up to 1500W RMS at 1 Ohm with remarkable efficiency and precision. The compact, space-saving design makes it an ideal upgrade for any vehicle, while its refined engineering ensures consistent performance even under heavy load. Every beat hits with depth and authority, transforming your listening experience into a truly immersive sound journey.
Installation is effortless thanks to its smart design — all connections are located on one side for a clean, organized setup, and the controls are neatly placed under a removable top plate for easy tuning. Whether paired with a single subwoofer or multiple drivers, the R2-A150M brings Alpine’s signature sound quality and power to your car audio system.
Key Features
- Class-D Mono Subwoofer Amplifier with 1500W RMS Output at 1 Ohm
- Delivers 1200W RMS at 2 Ohms for Versatile System Configuration
- Advanced Class-D Technology for High Efficiency and Low Distortion
- Clean, Dynamic Bass Response with Exceptional Accuracy
- Compact Chassis Design for Space-Saving Installation
- All Connections on One Side for a Neat, Professional Setup
- Top-Mounted Controls Hidden Under a Removable Plate
- Adjustable Gain, Low-Pass Filter, and Bass EQ for Fine-Tuned Sound
- Built-In Thermal, Overload, and Short Circuit Protection
- Integrated Mounting Feet for Easy and Secure Installation
- Premium Build Quality Designed for Long-Term Reliability
- Perfect Match for Alpine R-Series Subwoofers
What's Inside?
- Class-D Mono Subwoofer Car Amplifier (six installed 25A ATO fuses)
- Four 1" pan-head screws
- 3mm Allen key
- 2.5mm Allen key
What Others Are Saying
Eddie was great - SDCS installed a new head unit in my 2019 4Runner. He was honest in his opinions regarding the options I was considering. Pricing was also good - he was able to reuse some of my existing installation kit so I saved a bit of $$.Installation was clean and fast and he took the time to walk through the features before I left. Highly recommend!!
I had a great time at this shop! The staff really knows their stuff and took the time to explain the different options without pressure. Installation was quick, clean and professional. Everything looks factory and sounds amazing. The prices were fair and customer service was above and beyond. I highly recommend this place if you're looking for quality car audio and excellent service.
Those guys are really professional! I had a new Alpine floating head unit installed in my 2008 Mercedes, and it feels like a brand-new car. The installation was super clean. At first, the sound wasn’t the same as the factory stereo, but Kevin tuned it to be just as good—if not better—without adding any new amps. They even used my factory GPS antenna so I don’t have extra wires hanging out. On top of that, they matched the online price. Big thanks to Kevin and Eddie—highly recommended!
Kevin was awesome, he took his time and explained everything to me. I went in initially for a dash cam install and then decided to get a sub and amp installed as well. Both turned out great and will be returning if I need more work done.
Came In not knowing what to expect when suddenly my stereo stopped working. Spoke with Kevin in the front and after a VERY fast diagnosing they discovered my wiring was incorrect. After only about 45 minutes total being in the store I was on my way to the beach with a working stereo again! Thank you so much SDCARSTEREO
Highly recommend Kevin and the team at San Diego Car Stereo for any issues with aftermarket stereos. I bought a car with an aftermarket stereo and AC unit that wasn’t working properly—specifically, the heat wasn’t functioning due to an improper setup. I had several people look at it with no luck, and even the dealership basically refused to help because it was an aftermarket install. I came to Kevin and his team over the holidays feeling pretty defeated, but he was confident he could get the heat working before I headed back to a Colorado winter. Sure enough, he got it done.
FAQ
Do products purchased from San Diego Car Stereo come with a warranty?
Yes, all products come with a 1-year manufacturer warranty unless otherwise stated. This covers any defects excluding physical damage.
Are these products brand new?
Yes, every product we sell is 100% brand new, unused, and comes in original manufacturer packaging unless clearly marked otherwise.
Do you offer installation services?
Yes, we offer professional installation services at both of our San Diego Car Stereo locations. Our expert technicians have over 50 years of combined experience to install all of your car, marine, or offroad audio needs. Stop by or give us a call to schedule an appointment to get a quote in person.