Alpine MRD-M500

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MRD-M500 MSRP: $ 299.00
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Description:
Gut-busting power and exacting control that's what you get with Alpine's V12 AccuClass-D mono bass amplifiers. The MRD-M500 amplifier has a built-in digital signal processor that lets you control the Bass Engine features with surgical precision, giving you a level of fine-tuning capability previously found only in Alpine receivers.

  • 250 watts RMS x 1 at 4 ohms
  • 500 watts RMS x 1 at 2 ohms
  • MOSFET power supply and output stage
  • STAR Topology for cleaner sound
  • low-pass digital crossover, 30-200 Hz, 24 dB/octave
  • variable subsonic filter (15-50 Hz in 5 Hz steps)
  • parametric EQ variable from 30-160 Hz
  • Bass Compensator enhances low-end definition
  • top-mounted digital control center with cover
  • time correction 0-10 milliseconds in 0.5ms steps
  • phase adjustment 0-180
  • turn-on delay
  • digital readout
  • detachable front cover
  • blue power LED
  • preamp outputs
  • requires 4-gauge power and ground leads wiring and hardware not included with amplifier
  • extra-large gold-plated terminals
  • 12-3/8"W x 2-11/16"H x 11-1/2"D (10"D without front cover)


 
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++ Rating
Reviewed by:
Marbs


Review Date
February 15, 2011

Overall Rating
 5 of 5

Value Rating
 5 of 5

Used product for
More than 1 year

Visitors rate this review
4.73 of 5, 15.00 votes

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Review 1 of 3

Price Paid:  $500.00 from ONLINE IN 2003 FORGO

Year / Model Reviewed:
2003 MRD-500

Strengths:
Strong, birth sheet read 537. Tunability, I can't believe no one makes anything like this anymore. Adjustments are digital, no need to hook up an oscilloscope to figure out the exact frequency you are tuning for.

I've had this amp since new in 2003, it powered a pair of Infinity Kappa 10's, Underpowered A pair of American Bass 12's, (did much better pushing a single one of those) and most recently a pair of Soundstream Stealth 13's.

Altogether it's been the center piece of 5 installs for me, I haven't found an amp that I would want to replace it with, I just wish I would have bought a 2nd one when they were on the market, or maybe the MRD-M1000.

Set up is easy if you understand frequency bell curves, with center frequencies. That's essentially what a parametric EQ is. You pick a frequency that you would like to boost and then decide how much + or - you would like to push that frequency. In the example it's 5 HZ steps, pretty simple.

Weaknesses:
Not made anymore, When I first got it it was a little sensitive to my remote turn on lead, at the time I installed a 12 volt relay to power the remote turn on to the amp and triggered the relay with the remote turn on wire from my head unit.

Summary:
Just can't believe that I haven't found anything better than this after almost 8 years of ownership.

Personally I don't want to guess what frequency my amp is tuned for. this amp takes out the guess work.

Another reviewer stated that this amp was difficult to set up. I can't disagree more. To the right side of the display under the cover are menu numbers, and next to each number is a description of what that particular menu item is for. Use google if you don't know what each phrase means, download the manual form the interwebs if you need to. it's really not hard, and the best thing is, after you are done setting it up, you can save the setting, and actually flash the memory so it will remember how you like the sweet, sweet sound you've just produced out of this beast even after it is disconnected from power.

Similar Products Used:
Nothing is like this amp, I have never used, seen or heard of another amp with all digital control and set up like this one.



++ Rating
Reviewed by:
Creighton1985



Review Date
April 20, 2004

Overall Rating
 5 of 5

Value Rating
 3 of 5

Used product for
More than 1 year

Visitors rate this review
4.78 of 5, 18.00 votes

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Review 2 of 3

Price Paid:  $275.00 from Stereo West in Omaha

Year / Model Reviewed:
2003 Alpine MRD-500

Strengths:
Clean, efficent power in tremendous amounts.

Weaknesses:
These amps are best installed by an experienced user or a professional due to the complexity of installation and set-up.

Summary:
Incredible match for most any sub,especially the Alpine R series subs. I've owned these amps for about a year and they are incredible(once they've been dialed in appropriately).

Similar Products Used:
I only use Alpine and Infiniti so my reccomendations are simple.



++ Rating
Reviewed by:
Frank Humphrey


Review Date
October 4, 2003

Overall Rating
 5 of 5

Value Rating
 5 of 5

Used product for
3 Months to 1 year

Visitors rate this review
4.38 of 5, 16.00 votes

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Review 3 of 3

Price Paid:  $0.00

Strengths:
extremely clear, very accurate, and many adjustments.

Weaknesses:
Pain to adjust! but worth it.

Summary:
I have owned these amps ( i have 2, each running to a seperate type R 12) and they slam, but only if you have them wired at 2 ohms. Another warning, if you are a begginer dont mess with these amps, they are extremely complicated and very hard to get to work right. Besides that these are excelent amps and they get the job done very well. I have 2 1241D's and they are perfect matches for these amps, but only have one going to each amp, dont run two of them off this amp! I hit 143.8db's with this setup in a trunk and they are definitly loud and clear. dont go for those weak M300's, be a man and buy the big stuff if your going to buy anything.

Similar Products Used:
i only use alpine.




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