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- R-A75M

Alpine R-A75M R-Series Mono Digital Amplifier - 750 Watts x 1 at 2-Ohms

MSRP: $550.00 , - $50.05 Savings
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Alpine R-A75M R-Series Mono Digital Amplifier - 750 Watts x 1 at 2-Ohms, 500 Watts x 1 at 4-Ohms

The new R-Series amplifiers produce accurate imaging and dependable power. Use them with the R-Series speakers and amplifiers for a loud and fun experience.

The R-Series Amplifiers have a diagnostic LED located behind the blue Alpine Jewell on the top of the amplifier. A Blue light means the amplifier is operating normally. A red blinking light means the amplifier is currently too hot for operation and needs to cool down. A solid red light can mean three things; 1. Amplifier circuit is abnormal. 2. Temperature is too high. 3. Power supply voltage is too high.

The R-Series amplifiers utilize Alpine’s advanced amplifier platform that takes the classic Class-D amplifier circuit and adds dual post-filter feedback loops for unmatched accuracy and control. This technology., originally launched in the premium X-Series amplifiers, produces efficient power with enhanced dynamic range, qualifying the R-Series amplifiers to be Hi-Resolution Audio compliant.

• Power output 2-Ohm @ 14.4 Volts: 750 W RMS X 1
• Power output 4-Ohm @ 14.4 Volts: 500 W RMS X 1
• THD 10 W into 4 Ohms: Less Than 0.02%
• THD 10 W into 2 Ohms: Less Than 0.03%
• THD Rated Power 4 Ohms: Less Than 0.3%
• THD Rated Power 2 Ohms: Less Than 1.0%
• S/N Ratio: 1 W into 4 Ohms: >85dB
• Frequency Response:+0/-3 dB 10Hz - 400Hz
• Frequency Response:+0/-1 dB 15Hz - 325Hz
• Input Sensitivity: Hi (0.5 - 10V), Low (0.2 - 4.0V)
• Crossover: Variable HPF/LPF, (50Hz - 400 Hz)
• Dimensions: Width - 10-3/4", Height - 2", Depth - 7-7/8"
• Weight: 7lb

In the box:
• R-A75M Mono Amplifier
• 4 x M4x20 Self Tapping Screws
• 8 x Mounting Bracket Screws
• 4 x Mounting Brackets
• 1 x Hexagon Wrench
In stock and ready to ship! For US Customers Only.
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Click image to download warranty PDF

RMS Power In Watts:
501-750 Watts
Number Of Channels:
Single Channel
Feature 1:
Alpine’s Class D Amplifier Circuit with Dual Post-Filter Feedback Loops
Feature 2:
CTA-2006-B Power Rating: 500W RMS x 1 (4ohm, 14.4V ≤ 1% THD+N); 750W RMS x 1 (2ohm, 14.4V≤ 1% THD+N)
Feature 3:
S/N ratio: >85dB (ref: 1W into 4 ohm), 106dB (at rated power)
Feature 4:
THD+N ≤0.03% (ref: 1W into 4 ohm)
Manufacturer SKU:
7.0000 lbs