Please wait...
Please wait...
Our website uses cookies so that you can place orders and we can provide a better service. Continue to use the site as normal if you're happy with this, or find out how to manage cookies.
Please wait...
Pioneer Pioneer GM-A6704 - 1000W 4-Channel Bridgeable AmplifierGMA6704
£99.99 Save £30.00  was:£129.99
Click to Close

Fit it Yourself?

Everything you need to fit it yourself at home

Only £30.00 

With Steering Wheel Control
Only £50.00 

Pioneer GM-A6704 - 1000W 4-Channel Bridgeable Amplifier

£99.99 Save £30.00 (23%)  was:£129.99
5 Stars 5
Quickfind Code - 40048
Quick Summary:

Give into your deepest desire for power. Work it out how you want with the bridgeable amps. Just consider the consequences whatever you do: pure and clean, distortion-free power.

Condition: New

Save £30.00 (23%)
rrp: £129.99

  • Free Car Air Freshener with every order Free Car Air Freshener with every order
  • Easy ReturnsEasy Returns
  • Next Day Delivery available on all orders before 5pm Next Day Delivery available on all orders before 5pm

Click image to zoom

Key Features

1000W 4Channel Bridgeable Amplifier - Pioneer GMA6704

Untitled Document

Inspired By Excellence

Pioneer is constantly finding ways to make amplifier technology better. Our new and improved GM-Series prove how you can add cutting edge technology and more power to your system without breaking the bank. Like all Pioneer products, these amps are fully tested to ensure that each is designed and built for performance.

Higher Power

Having more power isn't just about LOUD. It's also about CLEAN, getting the most out of your speakers and your music. Constant road noise makes it hard for the music to be heard clearly. But with 480 watts max. power, you'll get to hear all the words and all the notes.

Variable LPF/HPF

Variable LPF (low-pass filter) and HPF (high-pass filter) allow for adjustable frequency between 40 Hz to 500 Hz and greater car audio system flexibility according to subwoofer characteristics and personal listening preferences. The GM-A6704 has a variable LPF/HPF on Ch. B and fixed LPF/HPF on Ch. A.

High Capacity Switching Power Supply

To suppress power supply loss, GM-Series amplifiers incorporate a large toroidal transformer and are driven using a high-speed switching MOSFET. This stabilization of power supply maintains stable playback of all types of music.

Gain Control

What is power without control? To accommodate the varying range of signal levels coming from today's factory and aftermarket radios, all of Pioneer's GM-series amplifiers feature adjustable gain controls. This means that no matter what kind of radio is connected to this amplifier, the appropriate gain control adjustment can be made to ensure loud, clear, distortion-free music. And even if the gain control level is set improperly, Pioneer's Gain Control Caution feature will automatically reduce the amplifier's output until the headunit volume is decreased to acceptable levels. This added layer of protection helps to prevent damage from occurring to the amplifier and the speakers connected to it due to improper gain control adjustments.

Bringing The System Together

What, you DON'T own a Pioneer headunit? Well, we won't hold it against you. In fact we'll even help you build onto your system. The GM-A6704's speaker level inputs allow you to connect your OEM unit (or any unit that doesn't have the typical RCA-type inputs) without having to buy add-on adapters. SO, the install goes faster, you save money, and you've got a Pioneer amp in your vehicle.

Download image of Pioneer GMA6704 Click here for Image of Pioneer GMA6704
Technical Specification
Main Features:
  • HPF 40-500Hz (-12 dB/oct)
  • Speaker Terminals - Screw-type
  • Speaker Input Level - 3 - 26 V
  • Max. current consumption - 31A
  • Chassis size (W x H x D) - 356(W) X 60(H) X 215(D)
  • Unit weight - 2.2kg
  • Maximum power input - 1000W (Bridged) or 4 x 170W (4 Ω) or 4 x 250 W (2 Ω)
  • 4-channel
  • CEA 2006 Power - 4 x 60W (4 Ω)
  • Continuous power output - 4 x 60W (4 Ω) or 4 x 95W (2Ω) or 2 x 190 W (4Ω bridged)
  • Variable LPF
  • Load impedance capability - 2-8 ohm allowable (stereo)
  • Frequency response - 10Hz ~ 70kHz (+0dB , -3dB) Hz
  • Distortion < 0.05 %
  • S/N ratio > 95 dB
  • Bass Boost - 50Hz; 0-12dB
  • LPF - 40-500Hz (-12 dB/oct)
  • Connections: High Voltage Output - 300 mV - 6.5 V
  • Audio - Variable HPF
Please wait...
Customer reviews

There are no customer reviews yet.

Write a review
Review Title: 

How many would you give this product?

Newsletter sign up

Questions/Answers About This Product
  • Question: 21 April 2022
    Car: Aston Martin V8 Vantage - 1992-1999

    Is this in stock


    This amplifier is currently in stock yes.

    Found Useful? Yes 

  • Question: 10 March 2022
    Hi, will this power the following speaker set up?

    1 x 10" Rockford Fosqate Sub Prime R2. Max watts 500, RMS 250 watts. 4 ohm.
    4 X 4" Focal RCX 100. Max watts 60 each, RMS 30 watts each.

    Short answer is NO. to run for 4 spekers and a sub you will need a 5 channel amp, take a look at the Alpine one I have suggested or buy 2 4 channel amps

    Alpine S-Series S-A55V 1100W 5 Channel Class D Car Amplifier
    JA1504 4 Channel 1500W Bridgeable Amplifier

    Found Useful? Yes 

  • Question: 15 February 2022
    Car: Vauxhall Corsa - 2009>

    Hi could i use this amp to power the Pioneer TSA25S4 Box Deal! 10" Sub you have and also run some 6x9 off it? Dont want to change from standard head unit


    No, this will not work. You will require a separate amp to power this high powered subs and separate to power 4 speakers because of the required power input.

    For the subs, we recommend using a monoblock amp such as below.

    InPhase IPA9701D 1 Ohm Stable 2400 Watts Monoblock with Subsonic Filter

    Found Useful? Yes 

  • View All
Got a Question about this Product?

The email address is required to email you when your question has been answered

Car Make
Car Model

chars left

Newsletter sign up

N.B. Questions are answered during office hours
Please don't put sensitive info in the question.

Fitting Services

Need help with Installation?

Here at CarAudioCentre we offer a professional and reputable fitting service in all our stores. For all fitting enquiries and bookings please visit or call one of our nationwide stores. Our fitters can install your new car stereo, DAB radio, audio visual, speakers, subwoofers or amplifier. We can also help to connect your iPod or MP3 player to you existing audio unit and can offer the best advice on the right in-car entertainment for your vehicle, to further this more we also offer a total 100% custom installation service for demo and show vehicles. So if you have an idea come on in and run it past us, the possibilities are endless and we are never too busy for an enthusiastic chat about our favourite subject.

Please note:

"That our two year warranty on products is only applicable to purchases made directly from us and that have been fitted in one of our stores."

Our Stores:

120 - 122 Alfreton Road, Nottingham, Nottinghamshire, NG7 3NR
Tel: 0115 9624 986
743-745 Eastern Ave, Newbury Park, London, IG2 7RT
Tel: 0208 599 2368
835 Garratt Lane, Tooting, London, SW17 0PG
Tel: 0208 971 9181