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Pioneer GM-A4704

520W Peak (260W RMS) GM Series 4-Channel Class-AB Amplifier

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• 40 watts x 4 channel @ 4 ohm
• 65 watts x 4 channel @ 2 ohm
• Bridged: 130 watts x 2 channel @ 4 ohm
• Total RMS Power: 260 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

Learn more about the gma4704

We apologize

This item has been discontinued

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Description


Pioneer brand icon

Authorized dealer

Product Details:

  • GM Series Class A/B 2 ohm Stable 4-Channel Amplifier
  • RMS Power Rating:
    • 4 ohm: 40 watts x 4 channel
    • 2 ohm: 65 watts x 4 channel
    • Bridged: 130 watts x 2 channel @ 4 ohm
  • Total power output: 260 watts
  • LED Power/Protect Light
  • Speaker-level (high-level) inputs
  • Signal sensing remote turn-on
  • 3-way protection circuitry (thermal, overload, and speaker short protection)
  • CTA-2006 compliant
  • Input sensitivity:
    • Low level: 300mV - 6.5 volts
    • High level: 300mV - 26 volts
  • Frequency Response: 10 - 70000 Hz
  • Total Harmonic Distortion (THD): 1%
  • Signal to Noise Ratio: 78 dB
  • Variable high-pass filter: 40 - 500 Hz selectable 80 Hz, 12 dB/octave on B channels
  • Selectable low-pass filter: 80 Hz, 12 dB/octave
  • Fuse Rating: 30A
  • 8 AWG gauge amplifier wiring kit is recommended for installation
  • Dimensions: 12-1/16" L x 8-1/2" W x 2-3/8" H
  • Authorized Internet Dealer
  • 1-year Sonic Electronix Warranty
  • MFR #: GM-A4704

Product history:

Pioneer GM-A4704 thumbnail
(newest, current model)
Pioneer GM-A4604 thumbnail
(previous model, replaced by Pioneer GM-A4704)

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Specifications & Details


Key Features
Amplifier Key Features
Speaker Level Inputs
Power Specifications - Full Range Channels
RMS Power @ 4 ohms
40 watts x 4 channel
RMS Power @ 2 ohms
65 watts x 4 channel
Bridged RMS Power
130 watts x 2 channel
Amplifier Specifications
Series
GM Series
Amplifier Class
A/B
Number of Channels
4-Channel
Total Peak Power Output
520 watts
Total RMS Power Output
260 watts
Maximum Input Gauge Size
8 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
4 ohms
Frequency Response
10 - 70000 Hz
THD at Rated RMS Power
1%
Speaker Level Inputs
Yes
Preamp Outputs
No
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
Full (AP)
High-Pass Crossover Frequency
40 - 500 Hz
Low-Pass Crossover Frequency
80 Hz, 12 dB/octave
Signal-to-Noise Ratio
78 dB
Remote bass/level controller
No
Fuse Rating
30A x 1 
Total Fuse Rating
30
Strappable
No
Sonic Certified Amplifier
Not Tested
Amp Bluetooth Connectivity
No
Hi-Res Certified
No
Low-Level Input Sensitivity
300mV - 6.5 volts
High-Level Input Sensitivity
300mV - 26 volts
What is in the box?
Paperwork
User manual
Warranty/Registration card
WITB: Amplifiers
Amplifier
Mounting screws (4)
Allen wrenches (2)
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Item Details


Manufacturer:

Model Number:

GM-A4704

Weight:

4.25lbs

Internal SKU:

gma4704

Internal Product ID:

121761

Customer Ratings & Reviews


Pioneer GM-A4704 thumbnail image

5 star
57%
4 star
43%
3 star
0%
2 star
0%
1 star
0%



Durability
4.3
Value
4.9
Features
4.2
Design
4.5
Usability
4.9

Customer Reviews

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Great value

The following review is for a previous version (GM-A4604).

Bought the amp to go with my new Pioneer 7500 series head unit and new JBL speakers. Fabulous sound! This unit had much better signal to noise ratio compared to similar priced amps, including the JBL.

Hookup was quick and easy, connections well marked. No complaints.

By Les on January 28, 2014

24 found this helpful


Perfect

The following review is for a previous version (GM-A4604).

Great amp. I'm running it off of my factory head unit using the high level inputs. It's powering 2 JBL GTO638 6.5's and 2 JBL GTO428 4 inch speakers. Those speakers sounded good just using the head unit but when I added this amp oh man did it make them come alive. Pioneer makes great products.

By Craig on March 3, 2015

22 found this helpful


great value

The following review is for a previous version (GM-A4604).

Product works perfect! The price was the lowest on the internet! super fast shipping! will buy from again!

By James on September 18, 2014

22 found this helpful


Simple and works

The following review is for a previous version (GM-A4604).

Not a bad amp for the price it works good and I've had no problems so far, using it to power nvx speakers and would recommend this amp

By Nicholas on April 23, 2015

18 found this helpful


Pioneer amp

The following review is for a previous version (GM-A4604).

I have it running my inside mids tweets great amp I have another pioneer amp with my pioneer did gps head. Love pioneer

By Justin on May 3, 2015

18 found this helpful


Just what I needed

The following review is for a previous version (GM-A4604).

Bought this amp after reading tons of reviews. Want wanting to spend a lot but wanted quality. I have it powering 4 alpine type r 6x8s. It's in my 06 f150. Provides enough power, never even gets warm. Great amp fir the money.

By Brant on October 23, 2016

6 found this helpful


Pioneer fm-a4604

The following review is for a previous version (GM-A4604).

good bang for your buck! Bought this to run a set of components, and they sound great! Crisp sound. Easy on the pocket, so I'd call that a win win! I'd recommend this to anyone who wants good sound, but isn't caring about huge wattage.

By Brent on September 29, 2016

5 found this helpful




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