Winter SaleEnds 1/19. Limited quantities. No rainchecks.Shop now

Skip to contentGo to Product SearchGo to Footer
Main Content

Customer Ratings & Reviews

No content
  • Pioneer GM-0X871 AMP D CLASS D Pioneer FRES D
  • The text on the image reads: "Class GM-DX871 D Mono A AMPLFEER Pioneer FEER EIA SPEAKER OUTPUT Sorty i b O 3 40A 40A."
  • Left. Pioneer - 1-Channel Class D Mono Amplifier - Black.
  • Back. Pioneer - 1-Channel Class D Mono Amplifier - Black.
  • Pioneer Class D Mono Amplifier. Power/Protect/L/R/Norm/H. 6.5V 0.2V Gain 125 200 60 40 240 FREQ .1... Bass Boost Remote Output Input.
  • Alt View 12. Pioneer - 1-Channel Class D Mono Amplifier - Black.
  • The text on the image reads: "Pioneer GM-DX871 1600WMax Class D Mono Amplifier - 1 CH. CAN. 1600WMax."
  • Alt View 14. Pioneer - 1-Channel Class D Mono Amplifier - Black.
  • The text on the image reads: "Pioneer GM-DX871 1,600 watts. I GM-DX871 CN. Dynamic. Impactful. No exceptions."
  • High efficiency, less waste, and less heat. Better conversion of input power to output power means less waste and less heat. (Pioneer GM-DX871 Alpine).
  • Pioneer GM-DX871 2.38" PORIE PROTEL L - - - LE IN LAIN - - -- - IN FRES A580 RIE t01PUl IPOT Pioneer R C. 8.5" 9.88" Powerfully compact. Small size for limited space and easy installation.
  • Adjustable & Self-Monitoring. Built-in high and low pass filters, including an internal protection control system. Pioneer GM-DX871.
  • Includes: 1-Channel Subwoofer Amplifier, Installation Screws, Two 40 A ATO fuses, Wire Terminal Tool, Bass Boost Remote Control, Owner's manual (English/French/Spanish), Bass Boost Remote Control Cable, 1 Year Warranty Sheet, Speaker Level to RCA Input Adapter, 1000W Pioneer GM-DX871.

Pioneer - 1-Channel Class D Mono Amplifier - Black

Model:
GM-DX871
SKU:
6321733
Highly rated by customers for:
Winter Sale Deal
Your price for this item is $199.99
The comparable value price is $249.99

Customer reviews

Rating 4.5 out of 5 stars with 264 reviews

Rating Filter

Rating by feature

  • Value

    Rating 4.4 out of 5 stars

  • Quality

    Rating 4.5 out of 5 stars

  • Ease of Use

    Rating 4.6 out of 5 stars

Pros mentioned filter

Cons mentioned filter

90%would recommend to a friend

Customers are saying

Customers are impressed with the 1-Channel Class D Mono Amplifier's powerful sound, compact size, and affordable price. They appreciate the crisp bass it produces and find it easy to install. The amplifier's small size is a popular feature, making it easy to fit into tight spaces.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 9 Showing 161-180 of 264 reviews
  • Pros mentioned:
    Power

    Awesome and very powerful and fits in most places

    |
    |
    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Awesome and very powerful and fits in most places ok price

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Great Value!

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Good quality for the price. Pretty easy to install.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Works good with any speakers

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I like that it has a knob to turn the amp up or down and easy to hook up.

    I would recommend this to a friend
  • Pros mentioned:
    Power

    Great mono amp!

    |
    |
    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great mono amp. A whole lot of pure power for a decent price.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Perfect!

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It works great for my truck it was really easy to set up too!

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    good deal

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    just what I was looking for, easy to install recommend

    I would recommend this to a friend

  • Good amp

    |
    |
    Posted . Owned for 9 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I use this amp everyday and it’s good , I have to adjust it alot

    I would recommend this to a friend
    • Brand response from Pioneer Electronics Team
      Posted .

      Thank you for providing feedback on the product, we appreciate your time.
      The GM-DX871 comes with a bass boost knob, so you can tweak the amp for each song, as needed. Major adjustments would need to be made at the amplifier. PUSATechAnswers

  • Pros mentioned:
    Sound quality

    Bass pioneer

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great buy amazing sound I could not be happier with my choice

    I would recommend this to a friend
  • Pros mentioned:
    Sound quality

    2006 mustang

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Had it installed at bestbuy, and it sounds excellent....thanks

    I would recommend this to a friend
  • Pros mentioned:
    Power

    Pioneer

    |
    |
    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Powerful digital amplifier great open box deal for 177.00

    I would recommend this to a friend

  • Great amp for the price.

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I bought the amp to push a single 12" Pioneer sub. Great deal on the open box purchase. Works great. Thanks to Devin at the Webster, TX location for taking the extra steps to find the open box item.

    I would recommend this to a friend
  • Pros mentioned:
    Power

    Great amp

    |
    |
    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great amp! Makes my subwoofers knock!! Would buy again!!

    I would recommend this to a friend
  • Pros mentioned:
    Sound quality

    12" L7

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It sounds so perfect highs and lows..I love it....

    I would recommend this to a friend
  • Pros mentioned:
    Power

    Great amp.

    |
    |
    Posted . Owned for less than 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It’s compact powerful and does everything it suppose to.

    I would recommend this to a friend
  • Pros mentioned:
    Power

    Great

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great power for beginner subs wont need more power

    I would recommend this to a friend
  • Pros mentioned:
    Power

    Great amp.

    |
    |
    Posted . Owned for 3 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great quality amp. Plenty of power to push 2 ported 12s.

    I would recommend this to a friend

  • I love my pioneer amp!

    |
    |
    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This is my first vehicle of my in so I wanted to get a good sound system for it, we went to Best buy and I am so happy that we did. Not only was I able to purchase an amp but a speaker and a deck as well, the sales rep that assisted us was super helpful and even offered us an extended warranty, thanks so much!

    I would recommend this to a friend
  • Pros mentioned:
    Sound quality

    Great

    |
    |
    Posted . Owned for 3 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Got the bundle with the 12 inch sub and it sounds great

    I would recommend this to a friend

  • Great Amplifier

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Wasn't sure about this purchase at first but I went with the Salesperson's recommendation. For sure the right choice, money well spent.

    I would recommend this to a friend

  • Amp

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Perfect everything I need in an amp. I would recommend this to anyone

    I would recommend this to a friend
    • Brand response from Pioneer Electronics Team
      Posted .

      Thank you for providing the feedback on the product, we appreciate your time. PUSATechAnswers

Page 9, Showing 161-180 of 264 reviews
Sign in or Create Account

Get the latest deals and more.

Best Buy appLearn more
Share on YouTubeShare on InstagramShare on TikTokShare on FacebookShare on PinterestShare on X
Best Buy Canada
AccessibilityTerms & ConditionsPrivacyInterest-Based AdsState Privacy RightsHealth Data PrivacyDo Not Sell/Share My Personal InformationLimit Use of My Sensitive Personal InformationTargeted Advertising Opt OutCA Supply Chain Transparency Act
In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.