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Alpine PDR-M65

Mono subwoofer amplifier — 650 watts RMS x 1 at 2 ohms

Item # 500PDRM65

Alpine managed to pack more power per square inch into their PDR-M65 mono Power Density Reference amplifier than...

Alpine managed to pack more power per square inch into their PDR-M65 mono Power Density Reference amplifier than...

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Item # 500PDRM65

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About the Alpine PDR-M65

Concentrated power

Alpine managed to pack more power per square inch into their PDR-M65 mono Power Density Reference amplifier than almost any other amp in its class. The  PDR-M65 can put out up to 650 watts RMS, giving solid punch and definition to your bass, and it'll fit in almost any of the tiny spaces you find in many cars and trucks these days. You can adjust the amp's low-pass filter and bass boost to get just the right bass tone, and you can add the optional RUX-KNOB.2 remote bass knob to control your bass from the dash.
Alpine Authorized Online Dealer

Concentrated power

Alpine managed to pack more power per square inch into their PDR-M65 mono Power Density Reference amplifier than almost any other amp in its class. The  PDR-M65 can put out up to 650 watts RMS, giving solid punch and definition to your bass, and it'll fit in almost any of the tiny spaces you find in many cars and trucks these days. You can adjust the amp's low-pass filter and bass boost to get just the right bass tone, and you can add the optional RUX-KNOB.2 remote bass knob to control your bass from the dash.

Superior sound and build quality

Alpine built the PDR-M65 to exacting physical and electronic standards, resulting in a tough, powerful amp with an incredibly clean and noise-free output. All the electrical connections are made on one side, for more convenient and neat installations. Speaker-level inputs allow you to use this amp in almost any system, even one with a factory radio. And you can rotate the badge, so the Alpine logo can always display right side up no matter which way you mount your PDR-M65. You can control the volume of your MRV-M500 from the front seat with the optional RUX-KNOB.2 remote bass controller.

Alpine PDR-M65

PDR-M65 control panel exposed

Confused about impedance? Check out our article on matching subs and amps.

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Product highlights:

  • mono subwoofer amplifier
  • 450 watts RMS x 1 at 4 ohms (650 watts RMS x 1 at 2 ohms)
  • CEA-2006 compliant
  • variable low-pass filter (50-400 Hz, 24 dB/octave)
  • variable bass boost (0-12 dB at 50 Hz)
  • variable subsonic filter (min-40 Hz, 24 dB/octave)
  • optional RUX-KNOB.2 wired remote level control
  • Class D amp with MOSFET power supply
  • preamp inputs and outputs
  • speaker-level inputs — require RCA adapter cables
  • fuse rating: 35A x 2
  • 4-gauge power and ground leads recommended — wiring and hardware not included with amplifier
  • 9"W x 2-1/16"H x 7-1/8"D
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # PDR-M65
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What's in the box:

  • Mono class-D subwoofer amplifier
  • Two 35-amp ATO fuses (installed)
  • Four 3/4" Self-tapping screws
  • 3mm Allen wrench
  • 2mm Allen wrench
  • Alpine logo plate
  • Owner's manual (English/ French/ Spanish)
  • Verification certificate
  • Warranty information
  • On-line registration information

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Alpine PDR-M65 reviews

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8 reviews

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Alpine PDR-M65

Crutchfield customer from Moundsville, WV on 6/23/2019

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Excellent service, advise and system!

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

Alpine PDR-M65

Crutchfield customer from Castle Rock, CO on 5/9/2019

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I bought this to run an old Boston Pro 10 2 Ohm Sub, replacing a Rockford Punch 500S. This amp packs a really good punch in a small package, plus the price was unbeatable. The certificate rated it at 796 watts. No problems with the performance, but a few little nitpicks: 1. The cover is a real pain in the neck to remove. 2. The dials/controls are towards the front of the amp, or near where all the wire connections are. I would have put them on the other side, near the back, so if it's mounted under a seat, where you'd likely have the back of the amp "showing" so to speak, it'd be easier to reach the dials for adjustment. 3. All the wire terminals face downwards, which can make it tougher to get the wires into the holes if your working space is limited.

Pros:

Cons:

Crutchfield response on

1 of 1 found this helpful

Alpine PDR-M65

Crutchfield customer from Union Grove, WI on 5/5/2019

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Got this because it was almost half off,great deal on top notch alpine gear is always a plus,works and performs awesome,rated at 650 watts but birthsheet says 773!

Pros: Small,efficient and powerful,free tech support from crutchfield

Cons: None

Crutchfield response on

1 of 1 found this helpful

Alpine PDR-M65

Crutchfield customer from Aurora, CO on 4/29/2019

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It's small, but powerful, easy to install. I have 2 - 10" Alpine subs in my truck and they hit hard with this amp. Great buy, you can't go wrong with this amp.

Pros: Small unit, powerful

Cons: I can't think of any

Crutchfield response on

0 of 0 found this helpful

Good so far

Jason from Madison, IN on 3/27/2018

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Verified employee purchase (What's this?)

So far so good. I paired this with an R-Type DVC 4 OHM sub and it sounds good. Waiting for the sub to break in to get too hard on it, but it sounds great now. It replaced my PDX-M6 that died after 2 years and took my sub with it. I guess a new amp and sub every 2 years isn't that bad. LOL

Pros: Compact No crappy plastic connectors like the PDX series

Cons: None so far

Crutchfield response on

3 of 3 found this helpful

Won't go back

Booker T. from Washington on 3/15/2018

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Had this amp installed with an 12 inch Kicker L7 Q-series in my 2013 Ford focus and initially loved it but was talked into trying out a Kicker KXA800.1 for the higher RMS rating. Absolutely hated the way the kicker sounded, so I switched back to the Alpine and I'm in love. Considerably cleaner power and far superior sound. Hits super low but still has nice punchy bass when it's required. Would highly recommended to anyone looking for great quality sound without breaking the bank.

Pros: High actual RMS rating, clean power, great value, wide frequency range, nice bass knob accessory

Cons: None

Crutchfield response on

4 of 4 found this helpful

Very Good Amp

Dee Gee from Portland Oregon on 4/8/2016

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I am very happy with this Amp. It's powering 1-12" Rockford P3. It gives more thump than I need now that I'm in my 30s but what I love is how easy it is to regulate the bass volume and how well it integrated into my amplified stock system. The highest I've turned it up 50% and that's enough to rattle my eardrums. Since its a review if I have one issue, tiny but still notable is that the bass knob is too easy to turn. With such a short distance between stock sounding bass and blow my windows out rumble. I wish the bass knob was a little more stiff to turn. (Nitt pickey I know). All in all I'm very happy and would recommend to anyone looking for a good D class amp.

Pros: Very good steady power and low draw from the electrical system.

Cons: Bass knob could be more heavily weighted since its a short throw volume range.

Crutchfield response on

5 of 6 found this helpful

Couldn't be happier

Greg T. from Fort Leavenworth, KS on 5/29/2015

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I wanted a little more thump in my 2010 Ranger and I got way more than I bargained for. This Alpine amp pushes major power to the two 10 inch Alpine subwoofers I have and I get nothing but extremely low bass which is hard hitting and I love it.

Pros: Definitely gives the power needed to push the subs

Cons: None

Crutchfield response on

9 of 9 found this helpful

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Cons:

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Product Research

Features
Controls
Connections

Features

CEA-2006 Compliant: CEA-2006 is a system of testing and measurement for mobile audio amplifiers. This voluntary standard advocates a uniform method for measuring an amplifier's RMS power output and signal-to-noise ratio. The criteria for measuring power uses a DC input voltage of 14.4 volts and the RMS power output is measured into a 4Ω load, with 1% or less Total Harmonic Distortion plus noise (THD+N), and over a frequency range of 20 Hz to 20 kHz (for full range amplifiers). Signal-to-Noise ratio is measured in weighted absolute decibels (dBA) at a reference of 1 watt into 4Ω. CEA-2006 standards allow consumers to compare car amplifiers and receivers under the same conditions (apples to apples). Using CEA-2006 criteria, the Alpine PDR-M65 is rated at 450 watts RMS x 1 channel with an 87 dBA signal to noise ratio. The signal to noise ratio at the rated power output (not CEA-2006 conditions) is 113 dB.

LED: The top mounted LED Power indicator glows blue when the amplifier is turned on and changes to red when the protection circuit is engaged.

Auto Turn-on: When using a speaker level input, the amp will turn on automatically when it senses the input signal.

Verification Certificate: The amplifier comes with a certificate that lists the RMS power output of the specific amplifier. It also lists the model number, serial number, test date, and the test conditions (14.4 volts, 2 ohms).

Controls

Hidden Controls: The amplifier's controls are hidden under a cover plate. The plate is removed by unscrewing two machine screws with the supplied 2mm Allen wrench.

Gain control: The gain setting is continuously variable from 0.2 to 4.0 volts.

Low Pass Crossover: The built-in 24 dB/octave low pass filter's crossover point is variable from 50 to 400 Hz. Because this is a subwoofer amp, the crossover is always engaged.

Subsonic Filter: The 24 dB/octave Infrasonic Filter removes ultra-low frequencies that cannot be reproduced by most subwoofers. These frequencies do not become sound, but unnecessary oscillations which affect sound by causing distortion. These frequencies also waste amplifier power and can cause damage to speakers. The filter's crossover point is variable from 8 to 40 Hz.

Bass EQ: The bass boost circuit, centered at 50 Hz, is variable from 0 dB and +12 dB.

Connections

Terminal Layout: For wiring convenience, all of the inputs and outputs on the amplifier are on one side.

Power Input: Two set-screw terminals are provided for connecting the power and ground cables. The terminals accept up to 4-gauge wire (a 4-gauge wiring kit is recommended). The set screws are tightened/loosened with the included 3mm Allen wrench.

Remote Turn-on: The remote turn-on set screw terminal will accept up to 12-gauge wire. The set screw is tightened/loosened with the included 2mm Allen wrench.

Speaker Outputs: There are two pair of set-screw speaker output terminals; they are internally wired in parallel, making it easy to connect two subwoofers. The terminals will accept up to 8-gauge wire and are tightened/loosened with the included 3mm Allen wrench.

Signal Input: The Alpine PDR-M65 is equipped with a pair of female RCA jack inputs. The RCA inputs will accept either speaker-level or line level signals from your car's head unit. A speaker level signal is connected to the RCA inputs using a speaker wire to RCA adapter (sold separately).

Line Level Output: The amplifier has a pair of RCA line level outputs for feeding another amplifier (4V max); it is the same signal that is input through the RCA line inputs. The amplifier's crossovers have no effect on the line level output signal.

Fuses: The amp is protected with two 35-amp ATO fuses.

Wired Remote (optional): Alpine's RUX-KNOB.2 wired remote control, sold separately, plugs into the RJ-25 Remote Bass Control terminal, giving you attenuation control of the sub(s) from anywhere in the car (0 to -20 dB).

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
My entire system is alpine brand [ Lsaba1  Mar 09, 2019 ]
A
Dope [ Darius  Mar 04, 2019 ]
A
It seems that you get a good amount of power for the price point. Essentially a good value. Also, the new amp was not in stock yet. [ LINO  Feb 20, 2019 ]
A
Boom boom. [ ZZealleauss  Feb 08, 2019 ]
A
paired with subwoofer the best? [ Nicholas  Feb 04, 2019 ]
A
Quality product [ C  Jul 09, 2018 ]
A
Artie educated me in the specs and I told him what I wanted to spend so he showed me what would work. Bam! Here we are! Artie's Bio: http://www.crutchfield.com/Support/Bio.aspx?bio=93 [ cynthia  Feb 10, 2016 ]
SHOW MORESHOW LESS

3 questions already asked

Q
I have a Alpine PDR-M65 with a 15" Kicker L7, what would be the best way to wire this?
[ Troy  Jan 27, 2017 ]
1 answer
A
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the connections on the product. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer. You can also post your question in our forums: http://community.crutchfield.com. Or try our online support center: http://crutchfield.custhelp.com/app/answers/list/kw/.
[ Kenny  Jan 27, 2017 ]  Staff
Q
How can I tune this amp? With swr-12d2 subwhoofer
[ Dudzss  Apr 06, 2016 ]
1 answer
A
Hey not sure exactly what you are asking but the amp is great and does have many filters on it that you can tune to your liking
[ Joseph  Apr 06, 2016 ]
Q
Just to clarify, if I am going to run 2 300 watt 4ohm subs, can I wire each one into a separate one of the 2 speaker outputs and still have a 2 ohm load and get the 650 watt need, or should I wire them together and into one of the outputs?
[ TexasRedfish  Mar 06, 2015 ]
1 answer
A
I forwarded your question to an Advisor and they responded with the following: You will wire the two subwoofers to their own set of outputs as they are conveniently wired in parallel, see here: Speaker Outputs: There are two pair of set-screw speaker output terminals; they are internally wired in parallel, making it easy to connect two subwoofers. The terminals will accept up to 8-gauge wire and are tightened/loosened with the included 3mm Allen wrench. If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat.
[ Krissy  Mar 10, 2015 ]  Staff

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