Shopping Cart 0 items · $0.00

    (All items shipped from our Sydney warehouse)


    $9.95 on all orders

    Heavy Items Excluded


    Best Prices & Price Matching


    Money Back Guarantee

Pioneer GM-D1004 Compact FD 4 Channel Car Amplifier

Click on above image to view full picture

  • Pioneer GM-D1004 Compact FD 4 Channel Car Amplifier

List Price: $219.00 On Sale: $131.85 (GST Included) (You save 39.79%)

SKU: GMD1004


$9.95 Flat Rate Generally ships out in 24 to 48 hours.


How To Build A Bundle

The following accessories can be bundled with your purchase by checking the green ‘Include with Product’ button. You can add as many items to your order as you require and then simply ‘Add to Cart’ to complete order.

Product Info

Product Info

Pioneer GM-D1004 Compact FD 4 Channel Car Amplifier

Pioneer is a Japanese multinational corporation founded in 1973 that specializes in digital entertainment products. It's one of the most trusted brands in practically any field of car audio. With the renowned innovation, persistance and integrity of Japanese businesses, you can expect the latest technology and the highest possible quality from Pioneer car audio products.

We Think YOU Should Know

  • 12 Month Pioneer Australian Warranty
  • Risk Free Purchase Guarantee (bottom of page)
  • 400 Watts Max Power
  • Compact Design for Versatile Installation Options
  • Refined Class FD Design Offers Extreme Efficiency and High-Quality Sound


Whether you call it “compact” or “micro” the GM-D1004 will wear the name proudly. With the size equivalent to slightly smaller than a standard red brick, you’ll have no problem finding a place to mount it or conceal it behind our short chassis Digital Media Receivers stereos, glove box or even in the center console.

It may be small but don’t let the size fool you. The GM-D1004 is capable of delivering up to 400 Watts of maximum output and is more than comfortable providing 45 Watts of power per channel, that’s more than enough to improve the performance of your factory or aftermarket speakers.

Today more and more music lovers are taking their music off-road and finding ways to enjoy their music recreationally. With the GM-D1004 you can add great sound to your motorcycle, ATV, or boat where a conventional size amplifier may not fit.

For DIYers, the GM-D1004 amplifier is not only small and powerful but it’s easy to install. Simply connect power and ground at the radio and get more installation flexibility using hi-level or low-level inputs with a signal sensing remote turn on so you can use it in combination with a factory or aftermarket headunit.


Peace of Mind Purchase Guarantee
This product is supplied via Pioneer Australia and enjoys the FULL benefits of the 'Genuine Pioneer Australian Warranty'. (You may also be entitled to other consumer warranties as provided by the Australian Consumer Guarantee and these entitlements are not limited by this warranty). In the event that this product should fail please contact our service department or you can speak with Pioneer Australia directly.

We are a FULLY AUTHORISED Australian retailer for Pioneer Australia.

Due to differing operating costs associated with selling products via different marketplaces such as eBay, Amazon or our Online Store, our pricing may vary as a result.

Tech Specs

Technical Specifications


  • Number of Channels    4
  • Amplifer Class    Class FD
  • Maximum Power Output    400W
  • Maximum Power Output at 2 Ohms    100W x 4
  • Maximum Power Output at 4 Ohms    100W x 4
  • Maximum Power Output - Bridged at 4 Ohms    200W x 2
  • Nominal Power (RMS) Output at 2 Ohms    45W x 4
  • Nominal Power (RMS) Output at 4 Ohms    45W x 4
  • Nominal Power (RMS) Output - Bridged at 4 Ohms    90W x 2
  • Frequency Response    10 Hz to 40 kHz
  • Total Harmonic Distortion (THD)    < 0.05% (1 kHz)
  • Signal-to-Noise (SN) Ratio    75 dB
  • Fuse Rating    15 Amps


  • RCA Inputs    4-Ch.
  • Speaker Level Inputs    Yes
  • Crossover Type    LPF/HPF
  • Low-Pass Crossover Frequency    80 Hz (LPF/OFF/HPF)
  • Low Pass Slope (dB/octave)    -12 dB/octave
  • High-Pass Crossover Frequency    80 Hz (LPF/OFF/HPF)
  • High-Pass Slope (dB/octave)    -12 dB/octave
  • Automatic Signal Sensing and Turn-On    Yes
  • Terminal Type    Removable
  • Load Impedance Allowance (Ohm)    1 to 8
  • Bridgeable    Yes
  • MOSFET Output Selection    Yes
  • Protection Control System    Yes
  • Dimensions (WxHxD)(inches)    7-1/8" x 1-1/2" x 2-1/2"
In The Box

What's Included?

  • Pioneer GM-D1004 Compact FD 4 Channel Car Amplifier

2 Customer Reviews

Easy install and decent sound
I recently purchased a 2018 Suzuki Swift, and decided to upgrade the sound system.

I wanted something I could integrate into the factory wiring and hide away for a 'stock' look. I ran an underseat 8 inch sub, pioneer ts-d components up front with matching coaxials in the rear doors. The doors were treated with a small amount of dynamat.

The amp is mounted behind the glove box and I'm using the speaker outs from the stock HU into the high level amp inputs. Power I obtained from the fuse box using a blade fuse piggyback.

I'm running the amplifier's HPF on the speakers, with the sub crossed at 80hz. I retained stock wiring to the doors.

The amp works really well, it's compact and efficient. It noticeably increased the volume and clarity from the stock unit.

Great value for money, and will satisfy those looking for a noticeable improvement on standard systems, without making a mess.
This Micro Amp Packs a serious Punch
"Recently Purchased a New Toyota GTS86 that has the upgraded audio System, Well this only really includes the SatNav Fujitsu 10 Head Unit and we still end of with the stock 3.5"" rear speakers and the stock 6.5"" Door with Tweeters. The stock stereo is ok at best but when you turn it up its not so inspiring.

I purchased this little amplifier and used an AeroPro T Harness (No.CT10TY01) for a direct factory plug n play. Mounted the amp in the glove-box with double sided tape and Whoa!

This Amplifier really is powerful, the volume @ 10 is as loud as it was stock @ 30 but the sound quality is better and the mid-bass is cleaner and much more present. I'm absolutely blown away by what this has done to the stock stereo system.

If you want a to drive your speakers better and have a clear sound but need to keep the install small and hidden I would highly recommend this tiny amplifier, you will be shocked at how powerful and efficient this little gem is.
  •   1 star 2 stars 3 stars 4 stars 5 stars

* Required Fields

Build your own bundle

Select up to 3 items from the tabs below.

  • item
  • item
  • item

Pioneer GM-D1004 Compact FD 4 Channel Car Amplifier

Amp Wiring Kits

Build your own bundle - Choose up to 2 item(s) from this category

RCA Leads

Build your own bundle - Choose up to 2 item(s) from this category

Speaker Wire

Build your own bundle - Choose up to 2 item(s) from this category