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

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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.

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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.

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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

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Questions/Answers About This Product

Question: 12 April 2021
Car: VW Golf - 1998 - 2003 MK4

Can I use this to run 2x250w front and 2x250w rear speakers?

Answer:
Hi,

If they are PEAK power figures, then yes.

Found Useful? Yes
Question: 07 February 2021
Car: BMW 3 Series (E46) - 1999-2005 (E46)

i have a twin vibe sub 700w each will this run well witb my sub

Answer:
Hi

We would suggest the below amplifier.

InPhase IPA8701D 1 Ohm Stable 1600 Watts Monoblock with Subsonic Filter

Found Useful? Yes
Question: 18 December 2020
Car: VW Transporter - 2005 >

Can I power 2 front component speakers and a sub with this amp?

Thanks.

Answer:
Hi,

Yes, you can. You will need to put the tweeters onto crossovers

Found Useful? Yes

Question: 03 October 2020
Hi I just wonder if you have this amp in stock? Also I'm after 10inch pioneer subwoofer if you have it in stock too

Answer:
Hi,

No, try the In Phase IPA8704D.

Found Useful? Yes

Question: 04 July 2020
Car: Ford Fiesta - 2008>

Hi
I have the Pioneer TS-A300B, would this amp work well?

Answer:
Hi,

You will need a two channel or mono channel amp to run this box. See below.

IPA1601 2 Channel 2 Ohm Stable Amplifier with Subsonic Filter
JWTRU42PS 4 Gauge Mono Block Digital Amp Wiring Kit

Found Useful? Yes

Question: 02 June 2020
Car: Kia

Hi, would this amplifier work with the Pioneer TS-G1710F - 230W with 4 speakers?

Answer:
Hi,

Yes you will be able to use this amp.

Have a look at the GM-D1004 as it is easier to fit and is simular power.

GM-D1004 - 400W 4 Channel Easy Install Amplifier with TVC concept and input sensor

Found Useful? Yes

Question: 19 May 2020
Hi there do you have any physical stock of this please ?

pioneer-GM-A6704

Answer:
We are curreblty sold out but have more due in this week, take a look at the Juice Amp its alot better

JA1504 4 Channel 1500W Bridgeable Amplifier

Found Useful? Yes

Question: 17 February 2020
Hi, I drive an E28 with a Pioneer deh-x7800dab head unit and 4x Pioneer ts-a4670f speakers. Would this amp better improve my speaker quality?

Answer:
hi,

putting an amp on the speakers does improve the sound, also sound deadening around the speakers and behind them will also help improve the sound.

Found Useful? Yes

Question: 26 December 2019
Car: Ford Focus - 2004>

Hi.Ford Focus mk3.5 2015 with original Sync2 radio. I'm looking to upgrade front speakers to Focal 165AS. Would this amp be fine for this speakers and what adapters/harness would I need. Thanks

Answer:
hi,

we would recommend using a better quality amplifier for speakers, something like the GMD8704 isnt that much more expensive but would sound far better. you would need also the following

JWTRU42PS 4 Gauge Four Channel Amplifier Wiring Kit
In Phase Speaker to Rca Converter adjustable output gain

Found Useful? Yes

Question: 06 December 2019
Car: Fiat Punto - 2005> (Grande)

I've just bought 2 sets of ts r1750s and I need an amplifier to go along with them. Do you think this amp will work with me having the stock head unit.

Answer:
Hi

You can use the GM-A6704 amplifier to power the TS-R1750S.

Found Useful? Yes

Question: 22 August 2019
Car: Honda

There are matching 2 pairs of pioneer ts a1600c speakers ???

Answer:
hi,

can you put in more detail your question please, would you like to know if this amplifier is suitable for the TSA1600C? if so then yes it would be.

Found Useful? Yes

Question: 09 August 2019
Car: Citroen Berlingo - 1991>

Hi would this amp be ok the run a 12inc kicker sub and a set of components?

Answer:
Hi

The GM-A6704 can work with your set up.

Found Useful? Yes

Question: 26 May 2019
Car: Iveco Daily - 2007-2009

I have kenwood Kdc-bt73dab head unit with 2X JBL Car GTO 629 6.5" and 2X JBL GTO 8629 5x7". The head is cutting out at high volume. Will this amp solve this problem? The wiring is all good!

Answer:
Hi

The amplifier will help.

Found Useful? Yes

Question: 02 May 2019
Car: Kia Ceed - 2010>

Hi, can I use this amplifier to power 2 hertz 80 RMS speaker, with one subwoofer? thanks.

Answer:
hi,

yes it could run them however it wouldn't run them to there full potential, depending on the subwoofers requirements it would run but would be under powered most likely

Found Useful? Yes

Question: 23 January 2019
I have a 2018 Transit custom running original head unit, going to upgrade door speakers to 180 watt ones and possibly an active bass speaker under seat so what would be the best amp to use please

Answer:
hi,

you could use the amplifier to run the speakers as it would be perfect for that, the subwoofer will have its own amplifier so you will have two spare channels for adding some extra speakers in the rear if you wish too, if not then you could just go for a 2 channel model

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

Pioneer GMA6704

Fit it Yourself?

Everything you need to fit it yourself at home

DIY Kit
Only £30.00

With Steering Wheel Control
Only £50.00

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

1000W 4Channel Bridgeable Amplifier - Pioneer GMA6704

Pioneer GMA6704

Fit it Yourself?

Everything you need to fit it yourself at home

DIY Kit Only £30.00

With Steering Wheel ControlOnly £50.00

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

1000W 4Channel Bridgeable Amplifier - Pioneer GMA6704

DIY Kit
Only £30.00

With Steering Wheel Control
Only £50.00