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Alpine

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

    • Based on 28 reviews
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Features

  • Alpines Class D Amplifier Circuit with Dual Post-Filter Feedback Loops
  • 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)
  • S/N ratio: >85dB (ref: 1W into 4 ohm), 106dB (at rated power)
  • THD+N 0.03% (ref: 1W into 4 ohm)

Description

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. Specifications: 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

Item dimensions L x W x H: 15 x 11 x 5 inches


Voltage: 14.4 Volts


Manufacturer: Alpine


Mounting Type: Car Mount


Brand: Alpine


Product Dimensions ‏ : ‎ 15 x 11 x 5 inches; 7 Pounds


Item model number ‏ : ‎ R-A75M


Date First Available ‏ : ‎ March 8, 2019


Manufacturer ‏ : ‎ Alpine


Best Sellers Rank: #85,473 in Electronics (See Top 100 in Electronics) #183 in Car Mono Amplifiers


#183 in Car Mono Amplifiers:


Customer Reviews: 4.2 4.2 out of 5 stars 28 ratings


Frequently asked questions

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Top Amazon Reviews

    • Great amp but not for beginners
This amp is extraordinary! So much so I bought another one. The amp is not for beginners! The amp has a protection mode on it which shuts the amp off when it detects distortion. This means you need to tune your system. Many beginners think that a system is just plug and play and turn everything to the max (This amp protects you from yourself). This amp due to the protection mode (it protects your speakers from being blown by distortion) requires proper tuning. Below is the proper way to tune a system. If you don't have a distortion meter and don't want to buy one, your local sound shop should be able to help you for a small fee. The most common reason this happens to beginners is they think the gain is a volume knob. The amp should be tuned with a distortion meter or at the very least a multi-meter. First you should start with your head unit and find the max volume before distortion is introduced. That will give you your max volume on your head unit. So if distortion is introduced at a volume of 59 your max volume will be 58. Once that is set then leave the head unit at max volume (in this example 58) and put the distortion meter on your amp. Start with the gain all the way down and start turning it up slowly until you see the meter indicate distortion. Turn it back down slowly until the distortion light goes off. Remember the gain is not a volume knob. Once you have found these two levels on your head unit and amp you are ready to go. Also make sure you have your subs wired to the correct Ohm load for the amp. ... show more
Reviewed in the United States on June 30, 2021 by Jason Howard
    • Amazing SQ and power for little amp.
Mine is running a high end Focal K2 KX30 12" subwoofer box and it has no problems whatsoever keeping up and providing plenty of power and headroom.
Reviewed in the United States on August 17, 2022 by D. Valentine
    • On Point!........as I expected :-D
Great quality amplifier with nough power.......love me some Alpine :-)
Reviewed in the United States on December 8, 2022 by Brolic B
    • Not licensed to sell alpine
Review Image by The amp was Installed by reputable company and within 2 weeks the amp dried and smoked my speaker; and the company is not licensed to sell Alpine so you can’t use warranty The amp was Installed by reputable company and within 2 weeks the amp dried and smoked my speaker; and the company is not licensed to sell Alpine so you can’t use warranty
Had amp installed by licensed alpine company, and within 2 weeks the amp fried, and smoked my speaker; because they’re not a licensed dealer alpine won’t warranty and I am out $1,000
Reviewed in the United States on April 4, 2024 by The amp was Installed by reputable company and within 2 weeks the amp dried and smoked my speaker; and the company is not licensed to sell Alpine so you can’t use warranty The amp was Installed by reputable company and within 2 weeks the amp dried and smoked my speaker; and the company is not licensed to sell Alpine so you can’t use warranty
    • Good!
Good staff, very good store service!
Reviewed in the United States on April 4, 2020 by Dmitrii
    • Amp moves some air
Have this amp running (2) Alpine Tyre R 10' 4 ohm subs, lets just say it moves some air.. Always have to trun it down.. NEVER go plus 2db on the eq.. Amp works SOLID!
Reviewed in the United States on May 30, 2019 by S Crian
    • Didn't get a chance to use it.
Didn't work had to return. Great customer service tho.
Reviewed in the United States on January 27, 2020 by Roger

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