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Pioneer GM-D1004 RB 400 Watt 4-Channel Compact Micro Amplifier Small Amp Class D

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US $129.00

ApproximatelyAU $197.73

or Best Offer

Condition:

Excellent refurbished

“Excellent Class A+ Refurbished- Like New. Comes in Pioneer box marked as Factory Reconditioned. ”... Read moreabout condition

Quantity:

5 available115 sold

People want this. 280 people are watching this.

This one's trending. 115 have already sold.

Postage:

Free delivery in 2-4 days

Get it between Mon, 11 Aug and Wed, 13 Aug to 94104.

Located in: Rosemead, California, United States

Returns:

30-day returns. Seller pays for return postage.

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eBay item number:184501246808

Last updated on 19 Jul, 2025 01:01:45 AESTView all revisionsView all revisions

Item specifics

Condition: Excellent refurbished

Seller notes: “Excellent Class A+ Refurbished- Like New. Comes in Pioneer box marked as Factory Reconditioned. ...

Non-Domestic Product: No

RMS Power: 180 watt

Similar Model: GM-D1004

Modified Item: No

UPC: 0884938265652

About this product

Product Identifiers

Brand

Pioneer

MPN

GM-D1004

UPC

0884938265652

Model

GM-D1004

eBay Product ID (ePID)

216925642

Product Key Features

Channels

Dimensions

Width

8.12in

Additional Product Features

Signal to Noise Ratio

90dB

Amplifier Type

Multi Channels

RMS Power at 2ohm

45Wx4

Bass Boost

Without Bass Boost

RMS Power at 4ohm

45Wx4

Item description from the seller

About this seller

Joined Apr 2006

Alpine Audiocontrol Audiovox Behringer Boston Acoustics Cerwin Vega Chauvet Code Alarm CrimeStopper Farenheit Gemini Hello Kitty Infinity Jensen JBL JVC Kenwood Massive Audio Metra MTX Audio Pac ...

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Detailed seller ratings

Average for the last 12 months

Accurate description

5.0

Reasonable postage costs

5.0

Postage speed

5.0

Communication

5.0

AmplifiersHeadunitsSpeakersSubwoofersSub EnclosuresInstallation AccessoriesCar AlarmsMarine AudioMobile Video

Seller feedback (154,238)

This item (24)

All items (154,238)

e***l (570)- Feedback left by buyer.
Past 6 months
Verified purchase
Amazing sound quality delivered in manufacturer package. Shipped in great condition. Very affordable price. Looks good in my Honda.
a***a (411)- Feedback left by buyer.
Past 6 months
Verified purchase
Si, es bueno. Mucho musico!
a***y (2399)- Feedback left by buyer.
Past 6 months
Verified purchase
GREAT COMMUNICATIONS - Three Thumbs Up

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Product ratings and reviews

Learn more

4.5

46 product ratings

34 users rated this 5 out of 5 stars
7 users rated this 4 out of 5 stars
3 users rated this 3 out of 5 stars
0 users rated this 2 out of 5 stars
2 users rated this 1 out of 5 stars

Good sound quality

Good value

Small form factor

Most relevant reviews

See all 33 reviews

by IMzrw8z2Rfa@Deleted
30 Nov, 2016Top favourable review
Pioneer GM-D1004 400 Watt 4-Channel Digital Class D Car Audio Amplifier
Excellent Amp!!! I recently purchased the Pioneer GM-D1004 400 Watt 4-Channel Digital Class D Car Audio Amplifier and I'm very happy with this amp. It's surprisingly small, at 7 1/8" wide x 2 1/2" deep x 1 1/2" high it will mount almost anywhere. Even though its small, this little Amp still packs a mighty big punch and also offers versatility, as it puts out an impressive 45 watts x 4 channels @ 4 ohm, or 45 watts x 4 channels @ 2 ohm (bridged), or you can run 90 watts x 2 channels @ 4 ohm, or you can run 3 channels so if you have 2 mid range speakers and a sub you can power all 3 with just this one little amp. Very reasonable price, you just can't beat it for what you get!!!. Whether you are just looking to upgrade from your factory amp or you want to power your mid range speakers ... Excellent Amp!!! I recently purchased the Pioneer GM-D1004 400 Watt 4-Channel Digital Class D Car Audio Amplifier and I'm very happy with this amp. It's surprisingly small, at 7 1/8" wide x 2 1/2" deep x 1 1/2" high it will mount almost anywhere. Even though its small, this little Amp still packs a mighty big punch and also offers versatility, as it puts out an impressive 45 watts x 4 channels @ 4 ohm, or 45 watts x 4 channels @ 2 ohm (bridged), or you can run 90 watts x 2 channels @ 4 ohm, or you can run 3 channels so if you have 2 mid range speakers and a sub you can power all 3 with just this one little amp. Very reasonable price, you just can't beat it for what you get!!!. Whether you are just looking to upgrade from your factory amp or you want to power your mid range speakers this little amp is the perfect choice..... size, power, price.... you can't beat it. I highly recommend this product to anyone looking to upgrade their sound system.
Verified purchase: YesCondition: NewSold by: www-sonicelectronix-com
by arrepuess
26 Oct, 2017Top critical review
It Causes Clipping on my pioneer kevlar 6x9 component speakers. Not enough power :\
This tiny amp is too underpowered to run higher quality 75 watt+ rms speakers. Im sure it would perform better with lower wattage coaxial speakers that arent meant to produce good punchy midbass. Dont get me wrong this lil amp sounds good and definitely better than what my double din kenwood excellon stereo can dish out. But not enough for my power hungry Pioneer TS-D6902R 6x9 speakers. I guess i shuda known better. I got carried away by reading the reviews. I will have to either amp up, or downgrade on my mids. Otherwise its a cool lil amp. I personally cant crank it up too high for too long or it will get into what seems like protection mode and lower my volume substantially no matter how much i turn it up. I have to power off & on to make it work well. And thats ... This tiny amp is too underpowered to run higher quality 75 watt+ rms speakers. Im sure it would perform better with lower wattage coaxial speakers that arent meant to produce good punchy midbass. Dont get me wrong this lil amp sounds good and definitely better than what my double din kenwood excellon stereo can dish out. But not enough for my power hungry Pioneer TS-D6902R 6x9 speakers. I guess i shuda known better. I got carried away by reading the reviews. I will have to either amp up, or downgrade on my mids. Otherwise its a cool lil amp. I personally cant crank it up too high for too long or it will get into what seems like protection mode and lower my volume substantially no matter how much i turn it up. I have to power off & on to make it work well. And thats while lowering the bass enough to where the speakers dont clip. Because they will clip if you try to get any decent midbass on high end components. Even when bridged to 2 channel and doubling up the power to speaker. Bottom line, it should work great on small wattage speakers. It uses only a 15amp fuse, so what can you expect really?
Verified purchase: YesCondition: NewSold by: autosounds_warehouse
by red33065
28 Apr, 2016
Good low wattage small frame amplifier
Installed this unit in a 2014 4-Runner hooking it up to speaker out inputs of the stock Entune stereo. Mounted the amp behind the glove box next to the stereo & tywrapped in place tightly. Sound quality is good, basically Entune sound boosted up a bit in wattage from stock. Bass has increased giving my new installed JBL's more power to kick. It is about 25% louder then stock, not a huge difference in wattage. Connected power leads directly to stereo 12V and butt spliced to all speaker in/out leads. Not difficult to install, about 1hr. JBL's are about 2-3 ohms and this can handle 2-4 ohms and is one of the reasons, besides small frame size, why I purchased this unit.Installed this unit in a 2014 4-Runner hooking it up to speaker out inputs of the stock Entune stereo. Mounted the amp behind the glove box next to the stereo & tywrapped in place tightly. Sound quality is good, basically Entune sound boosted up a bit in wattage from stock. Bass has increased giving my new installed JBL's more power to kick. It is about 25% louder then stock, not a huge difference in wattage. Connected power leads directly to stereo 12V and butt spliced to all speaker in/out leads. Not difficult to install, about 1hr. JBL's are about 2-3 ohms and this can handle 2-4 ohms and is one of the reasons, besides small frame size, why I purchased this unit.
Verified purchase: YesCondition: NewSold by: yourbestelectronicssource
by dolsey48035
09 Jun, 2016
Pioneer Amp
Ive got this amp hooked to a Kenwood Excellon radio with 6 x 8 Infinitys front and rear x 22 watts It has made a world of difference to the sound! Those speakers greatly benefited from the 45 w watts pumped to them now. I have increased bass, which was lacking before, which i figured was a shortcoming of all 6 x 8s . Ive mounted it in a empty glovebox, just by itself as that little sucker gets warm, real warm but only when its cranking. Get one you will love it.Ive got this amp hooked to a Kenwood Excellon radio with 6 x 8 Infinitys front and rear x 22 watts It has made a world of difference to the sound! Those speakers greatly benefited from the 45 w watts pumped to them now. I have increased bass, which was lacking before, which i figured was a shortcoming of all 6 x 8s . Ive mounted it in a empty glovebox, just by itself as that little sucker gets warm, real warm but only when its cranking. Get one you will love it.
Verified purchase: YesCondition: NewSold by: yourbestelectronicssource
by jhen6455
18 Mar, 2017
Great
Big sound in a little package. I hooked this up to some JL audio C2 690 6x9's (highly recommend) in my front doors and JLAudio components in the rear doors. I then used dynamat extreme (highly recommend also) now my Jeep WJ sounds amazing. Really don't even need a subwoofer these JL's have lots of clean bass. Can't believe it for the size of the speakers they put out a lot of bass. Highs are crisp and clear also. This little amp works really well so far. I'll be hooking up my JL audio sub tomorrow like I said probably don't need it but hey I love lots of nice tight accurate bass.Big sound in a little package. I hooked this up to some JL audio C2 690 6x9's (highly recommend) in my front doors and JLAudio components in the rear doors. I then used dynamat extreme (highly recommend also) now my Jeep WJ sounds amazing. Really don't even need a subwoofer these JL's have lots of clean bass. Can't believe it for the size of the speakers they put out a lot of bass. Highs are crisp and clear also. This little amp works really well so far. I'll be hooking up my JL audio sub tomorrow like I said probably don't need it but hey I love lots of nice tight accurate bass.
Verified purchase: YesCondition: RefurbishedSold by: soundoftristate

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Pioneer GM-D1004 RB 400 Watt 4-Channel Compact Micro Amplifier Small Amp Class D

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Item specifics

About this product

Product Identifiers

Product Key Features

Dimensions

Additional Product Features

Item description from the seller

AutoSoundsWarehouse

99.5% positive Feedback•489K items sold

Detailed seller ratings

Popular categories from this Store

Seller feedback (154,238)

Product ratings and reviews

Most relevant reviews

Pioneer GM-D1004 400 Watt 4-Channel Digital Class D Car Audio Amplifier

It Causes Clipping on my pioneer kevlar 6x9 component speakers. Not enough power :\

Good low wattage small frame amplifier

Pioneer Amp

Great

More to explore:

AutoSoundsWarehouse

99.5% positive Feedback•489K items sold

Detailed seller ratings

Popular categories from this Store

Seller feedback (154,238)

Picture 1 of 4

Pioneer GM-D1004 RB 400 Watt 4-Channel Compact Micro Amplifier Small Amp Class D

Shop with confidence

Item specifics

About this product

Product Identifiers

Product Key Features

Dimensions

Additional Product Features

Item description from the seller

AutoSoundsWarehouse

99.5% positive Feedback•489K items sold

Detailed seller ratings

Popular categories from this Store

Seller feedback (154,238)

Product ratings and reviews

Most relevant reviews

Pioneer GM-D1004 400 Watt 4-Channel Digital Class D Car Audio Amplifier

It Causes Clipping on my pioneer kevlar 6x9 component speakers. Not enough power :\

Good low wattage small frame amplifier

Pioneer Amp

Great

More to explore:

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