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Pioneer GM-A4704 - 520W 4 Channel Bridgeable AmplifierGM-A4704
£74.85 Save £75.14  was:£149.99
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4 Channel Amplifiers Pioneer GM-A4704
   

Pioneer GM-A4704 - 520W 4 Channel Bridgeable Amplifier

£74.85 Save £75.14 (50%)  was:£149.99
5 Stars 5
Quickfind Code - 40049
Quick Summary:

A combination of great design and massive power, the GM-A4704 amplifier gives you total installation freedom and no distortion. You can turn your in-car audio experience into the sound staging environment that you’re looking for.

£74.85
Save £75.14 (50%)
rrp: £149.99

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On Orders Over £300

  • Free Car Air Freshener with every order Free Car Air Freshener with every order
  • Next Day Delivery available on all order before 5pm Next Day Delivery available on all order before 5pm
  • Easy Returns Easy Returns
  • 1 Year Easy Warranty 1 Year Easy Warranty



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Key Features

520W 4 Channel Bridgeable Amplifier - Pioneer GM-A4704

To create truly remarkable sound, even the greatest of head units can benefit from decent amplification. Pioneer’s well-proven GM-A4704 unit fits the bill for many such applications, offering 4 channels of impressive power – at a price that most enthusiasts can afford.

A combination of great design and impressive power, the GM-A4704 amplifier gives you total installation freedom with no distortion. With a one-body heat sink and gain adjustment of up to 6.5V, you can turn your in-car audio experience into the sound staging environment that you’re looking for.

It’s a versatile unit too - this 4-channel amp allows you to drive multiple speakers and subwoofers, it’s also bridgeable to power a single sub. Depending on your needs, it can produce 4 x 40W at 4 Ω, 2 x 120W when 4Ω bridged or 4 x 60 W at 2 Ω.

With a frequency response of 10Hz ~ 70kHz (+0dB , -3dB) Hz and miniscule distortion of < 0.05 %, the GM-A4704 offers crystal clear clarity, particularly when combined with any of Pioneers own head units or speaker systems.

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 head unit 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.

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-A4704 has a variable LPF/HPF on Ch. B and fixed LPF/HPF on Ch. A.

This amp is perfect for generating, crisp, clean high, mid and bottom end notes - 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 520 watts max. power, you'll get to hear all the words and all the notes – all of the time!
 
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 520 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-A4704 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-A4704'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 GM-A4704 Click here for Image of Pioneer GM-A4704
Technical Specification
Main Features:
  • Chassis size (W x H x D) 326(W) x 60(H) x 215(D)
  • Unit weight 2.0
  • Speaker Terminals - Screw-type
  • Speaker Input Level - 3 - 26 V
  • Max. current consumption - 20.5A
  • 4-channel
  • Maximum power input - 520W (Bridged) or 2 x 80W (4 Ω) or 4 x 130 W (2 Ω)
  • CEA 2006 Power - 2 x 130W (4 Ω)
  • Continuous power output - 4 x 40W (4 Ω) or 2 x 130W (4Ω bridged) or 4 x 65 W (2 Ω)
  • Load impedance capability - 2-8 ohm allowable (stereo)
  • Frequency response - 10Hz ~ 70kHz (+0dB , -3dB) Hz
  • Distortion < 0.05 %
  • S/N ratio > 94 dB
  • LPF - 80 Hz (-12 dB/oct)
  • High Voltage Input - 300 mV - 6.5 V
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Questions/Answers About This Product
  • Question: 02 June 2019
    Car: Nissan Navara - 2007>

    Will this amp run pioneer TS-A1733i and TS-G6930F speakers via high level input?

    Mike.

    Answer: 
    Hi Mike

    You can use this amplifier to power your speakers via high level input.

    Found Useful? Yes 

  • Question: 23 February 2019
    Car: Kia Sportage - 2010>

    Will this amplifier connect to the wiring that is standard to this car thank you

    Answer: 
    Hi

    You will need t use the below kit for this 4 channel amplifier.



    JWTRU42PS 4 Gauge Four Channel Amplifier Wiring Kit

    Found Useful? Yes 

  • Question: 01 February 2019
    Car: Toyota Corolla - 2002-2006

    Will this amp run 2ohms bridged? And what rms will it be putting out? 520?

    Answer: 
    Hi

    This will not run 2ohm bridge mode. See the below link for full specification.

    https://www.pioneer-car.eu/uk/products/gm-a4704/specifications

    Found Useful? Yes 

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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:

Nottingham:
542 546 Mansfield Road, Sherwood NG5 2FR
Tel: 0115 9624 986
Ilford:
743-745 Eastern Ave, Newbury Park, London, IG2 7RT
Tel: 0208 599 2368
Tooting:
835 Garratt Lane, Tooting, London, SW17 0PG
Tel: 0208 971 9181
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