Alpine R2-A150M R-Series Mono High Power Amplifier

R2-Series Mono High Power Amplifier (1500w RMS @1Ω)

SKU: R2-A150M



Alpine R2-A150M

R-Series Mono High Power Amplifier

The highly anticipated and innovative all-new R-Series amplifiers are truly remarkable masterpieces of power.

Every aspect of their design and engineering has been meticulously approached to achieve sonic excellence and power performance, all while being embodied in a compact form factor. Furthermore, these amplifiers incorporate technological advances gained from the ultra-high-end Alpine Status series amplifiers.

Prepare to be amazed by the bold aesthetic design and stunning build quality of these amplifiers. From the moment you see, touch, and hold them, they exude quality. With their solid cast aluminium body, precision machined finishes, and high-quality terminal blocks, every detail is premium and first-class.

These amplifiers are smaller and more powerful than ever before. Alpine's exclusive digital design architecture has enabled a significant reduction in footprint size without compromising audio specifications and power output. In fact, they are 15% smaller than their predecessors, and the completely new R2-A150M is Alpine's most powerful amplifier ever in a highly compact chassis, outputting a staggering 1500W RMS @1Ω.

Beneath the exquisite beauty cover panel, you will find top panel controls that provide convenient access to configure the amplifier and fine-tune audio calibration adjustments. Additionally, the single-sided terminal layout and integrated chassis mounting make installation a breeze.

These pint-sized yet potent amplifiers deliver enormous and effortless power, coupled with incredible audiophile-grade sound quality. They are the perfect choice for discerning music fans and astute system-builder enthusiasts.

The all-new R-Series amplifiers are born to be played loud. They offer legendary performance with extreme power output, matched with unrivalled sound quality and reliability.


Exquisite Design, Inside and Out

The all-new ultra-modern R-Series amplifiers are beautifully designed and constructed with machined alloy detailing and premium finishes throughout. Internally, An all-digital dual post-filter feedback loop is added for unmatched accuracy and control, while minimising internal noise.

Trickle-Down Technology

Using “trickle-down” technology-inspired design, and performance cues from the High-Resolution Alpine Status systems, the Next-Generation R-Series Amplifiers feature Alpine’s exclusive circuit design architecture that will take this legendary system to the next level in sound performance.


Compact and Powerful

The Alpine R2-A150M is Alpine’s most powerful amplifier in a highly compact chassis, outputting up to an astonishing 1500W RMS at a 1Ω load. Despite this high power output, the Alpine R2-A150M’s small footprint results in greater installation flexibility normally not possible from amplifiers of this specification.

Top Panel Controls

There when required and hidden when not, gain and crossover controls have been relocated beneath a sleek brushed alloy cover panel atop the amplifier for convenient, yet discreet use. Furthermore, mounting feet are now integrated into the chassis of the amplifier for improved aesthetics and installation simplicity.

Single-Sided I/O Terminals

A comprehensive approach to design ensures that all speaker I/O is consolidated onto a singular side of the chassis. This not only makes positioning and connecting the amplifier easier and more flexible but also allows for beautifully clean installations.

Maximum Bass with Multiple Subwoofers

The Alpine R2-A150M’s immense power allows it to handle multiple subwoofers with ease. Designed to perfectly match the power handling of multiple configurations, such as dual 10” or 12”, even up to four 8” R-Series Subwoofers will run effortlessly by this single powerhouse amplifier.

Control your Subwoofer

The optional RUX-KNOB.2 remote bass knob controller (sold separately) connects directly to R-Series amplifiers, providing easily accessible subwoofer control to make bass adjustments on the fly to enhance your listening experience. It’s tiny dimensions allow it to be mounted a number of handy locations for convenient control.

  • All-new Bold Design
  • Compact Chassis
  • Easy Access Controls
  • RCA and Speaker Level Inputs
  • Bandpass Filter
  • Superior Sound Stage
  • Bridgeable
  • Bass EQ
  • Subsonic Filter
  • Variable Low Pass Filters
  • Thermal Protection (Zero Shut-Off)
  • Remote Bass Knob Ready (RUX-KNOB.2)


  • Output Channel: Mono

Power Ratings

  • Power (@14.4V 1% THD)
    • Per Channel into 1 Ohms, 14.4V: 1 x 1500W
    • Per Channel into 2 Ohms, 14.4V: 1 x 1200W
    • Per Channel into 4 Ohms, 14.4V: 1 x 700W
  • Total Max Power: 2300W


  • Ref.: 10W into 4Ω: ≤0.04%
  • Ref.: 10W into 2Ω: ≤0.06%
  • Ref.: 10W into 1Ω: ≤0.05%
  • Ref.: Rated Power into 4Ω: ≤1.0%
  • Ref.: Rated Power into 2Ω: ≤1.0%
  • Ref.: Rated Power into 1Ω: ≤1.0%

S/N Ratio

  • IHF A-wtd +AES-17 Ref.: 1W into 4Ω: >75 dB
  • IHF A-wtd +AES-17 Ref.: Rated Power into 4Ω: >103 dB

Frequency Response 

  • (0+/-3dB) Ref.: 1W into 4Ω: 10Hz – 400Hz
  • (0+/-1dB) Ref.: 1W into 4Ω: 15Hz – 325Hz

Damping Factor

  • Ref.: 10W into 4Ω at 100Hz:  >250

Input Sensitivity

  • RCA Input Ref.; Rated Power into 4Ω
    • Hi: 0.4 – 10V
    • Lo: 0.1 – 4.0V


  • Variable LPF
    • 50Hz – 400Hz (-24dB/oct.)
  • Variable Subsonic
    • 8Hz – 40Hz (-24dB/oct.)


  • Bass EQ (fc=50Hz): 0 to +12dB (Variable)

Remote Level*

  • Linear Attenuation : 0 to -20dB

* Requires optional RUX-KNOB.2.

Input Impedance

  • > 10kΩ

Preamp Output

  • > CH-1/2 Input Pass-through, Buffered: 4V max


  • (WxHxD): 341 x 65 x 185mm
  • Weight: 5kg


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