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Pioneer GM-DX874 Amplifier - Image 1
Pioneer GM-DX874 Amplifier - Image 2
PIONEER

Pioneer GM-DX874 Amplifier

$69.99across 41 retailers
Model: GMDX874UPC: 884938421843
Lowest at Amazon
$169.99 at Amazon
Price seen Jul 22, 2024
Lowest at any Popular Retailer
$149.95 at Walmart
Price seen Jun 24, 2024

Where to Buy

Newest price seen: Jun 11, 2026
RetailerPriceLast seenBuy
V
Vevolar
$69.99Mar 14, 2023, may have changedBuy Now
A
Abttvs
$70.50Jan 31, 2023, may have changedBuy Now
A
Abttvs
$70.50Apr 26, 2023, may have changedBuy Now
B
bucohomes
$70.50May 14, 2023, may have changedBuy Now
M
My Store
$70.50Apr 17, 2023, may have changedBuy Now

Prices are collected from retailer listings; each row shows the date we last saw that price. Return and shipping terms are each store's standard policy from our retailer research (April 2026). Some products and categories have different terms, so check with the store before you buy.

Price history summary

We recorded no new price at major retailers (Amazon, Walmart, Best Buy, Target, The Home Depot and Lowes) in the last 90 days.

Range over the last 12 months: $219.99 (Best Buy, Jun 26, 2026) to $269.99 (Best Buy, Jul 11, 2026). Based on 4 recorded prices since May 28, 2026 for offers sold by these retailers themselves (not marketplace sellers). Summary as of Oct 13, 2026.

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Pros

  • •Provides solid power for a 10" subwoofer and rear deck speakers.
  • •Greatly improves sound quality of existing stereo systems, like "Bang and Olufson."
  • •Works effectively with a pre-amp DSP for optimal signal processing.
  • •High signal-to-noise ratio above 88dB for incredible sound quality.
  • •Supports Hi-Res frequency, enhancing sound clarity.
  • •Effective low pass and high pass filters for custom tuning.
  • •Provides 100 watts per channel, though it may exceed power requirements for some.
  • •Offers great value as a mid-range amplifier with strong performance.
  • •Works well with brands like Rockford Fosgate and Kenwood speakers.
  • •Convenient gain setting adjustments before distortion.

Cons

  • •May enter protect mode for unexplained reasons.
  • •Gain adjustments can be confusing and not intuitive.
  • •Requires wiring adjustments with speaker plugs rather than simple RCA output.
  • •Some reviews indicated the amplifier did not perform as advertised.
  • •Instances of the amplifier being defective, affecting channel performance.
  • •Overall frustration due to ineffective pre-amp output for subwoofers.
  • •Experience with prior brands noted as more straightforward and reliable.
  • •Unexpected and difficult-to-interpret oscilloscope waves.

Bottom Line

The Pioneer GM-DX874 Car Amplifier delivers a commendable balance of power and audio clarity, making it a solid choice for those enhancing their vehicle audio systems on a budget. However, potential users should be prepared for some installation and tuning challenges, and be aware that not all experiences were positive, with some reports of defects affecting performance. Despite these issues, if the feature set aligns with your needs, it's worth considering, keeping in mind that an upfront test might help mitigate unexpected inconveniences.

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What Reviewers Are Saying

Praised
decent power10%
solid amp10%
Criticized
gain is weird10%
defective10%
does not perform10%
plugging issues10%
used condition10%
bad sound quality10%

Discussion

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ShopSavvy compares prices across thousands of retailers so you always get the best deal. Prices are collected from retailer listings, and each one shows the date we last saw it. Our expert reviews and community discussion help you make informed buying decisions.

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