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JBL MA704

1000W Peak (400W RMS) Marine Series Class-D 4-Channel Marine Amplifier

JBL
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• 70 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Learn more about the ma704

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This item has been discontinued


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Description


JBL brand icon

Authorized dealer

Product Details:

  • MA Series Class D 2 ohm Stable 4-Channel Amplifier
  • RMS Power Rating:
    • 4 ohm: 70 watts x 4 channel
    • 2 ohm: 100 watts x 4 channel
    • Bridged: 200 watts x 2 channel @ 4 ohm
  • Total power output: 400 watts
  • LED Power/Protect Light
  • Speaker-level (high-level) inputs
  • 1 pair of pre-amp outputs
  • 3-way protection circuitry (thermal, overload, and speaker short protection)
  • Input sensitivity:
    • Low level: 200mV - 2 volts
    • High level: 2 - 20 volts
  • Frequency Response: 20 - 20000 Hz
  • Total Harmonic Distortion (THD): 1%
  • Signal to Noise Ratio: 85 dB
  • Variable high-pass filter: 32 - 320 Hz
  • Variable low-pass filter: 32 - 320 Hz
  • Fuse Rating: 60A
  • 8 AWG gauge amplifier wiring kit is recommended for installation
  • Dimensions: 14-11/16" L x 7-5/16" W x 2-3/8" H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty
  • MFR #: MA704

JBL MA704 owner’s manual

Product history:

JBL MA704 thumbnail
(newest, current model)
JBL MA6004 thumbnail
(previous model, replaced by JBL MA704)

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Specifications & Details


Key Features
Amplifier Key Features
Compact Design
Speaker Level Inputs
Weather-Resistant
Power Specifications - Full Range Channels
RMS Power @ 4 ohms
70 watts x 4 channel
RMS Power @ 2 ohms
100 watts x 4 channel
Bridged RMS Power
200 watts x 2 channel
Amplifier Specifications
Series
MA Series
Amplifier Class
D
Number of Channels
4-Channel
Total Peak Power Output
1000 watts
Total RMS Power Output
400 watts
Maximum Input Gauge Size
8 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
4 ohms
Frequency Response
20 - 20000 Hz
THD at Rated RMS Power
1%
Speaker Level Inputs
Yes
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
Full (AP)
High-Pass Crossover Frequency
32 - 320 Hz
Low-Pass Crossover Frequency
32 - 320 Hz
Signal-to-Noise Ratio
85 dB
Remote bass/level controller
No
Fuse Rating
30A x 2 
Total Fuse Rating
60
Strappable
No
Sonic Certified Amplifier
No
Amp Bluetooth Connectivity
No
Hi-Res Certified
No
Low-Level Input Sensitivity
200mV - 2 volts
High-Level Input Sensitivity
2 - 20 volts
What is in the box?
Paperwork
User manual
Warranty/Registration card
WITB: Amplifiers
Amplifier
Mounting screws (6)
Two spare fuses
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

JBL

Model Number:

MA704

Weight:

10.36lbs

Internal SKU:

ma704

Internal Product ID:

145771

Customer Ratings & Reviews


JBL MA704 thumbnail image

5 star
50%
4 star
50%
3 star
0%
2 star
0%
1 star
0%



Durability
4
Value
4
Features
4
Design
4.5
Usability
5

Customer Reviews

Sort by:

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I think its Purrty

I like this amp. on the pseudo test bench this amp seems to be appropriately powered when running a 2ohm load. a bit lack luster with a 4ohm load but then again my test source unit has a very weak signal voltage, so considering that, I'm suspending my final judgement until this lil guy is in its intended application, before rendering final conclusions which will necessitate an update. Going in a Comanche, with a Clarion M-508 as the source unit. Its gonna Rock!
The aesthetics are pleasing. The size foot print and power rating are perfect for my application.
Cons; the plugs to protect the terminal sets screw terminals appear poorly thought out. Strips of rubber with little lug nubs that fit the recesses. I would have appreciated a loss preventative design. Minor gripe really.

By Dylan on November 22, 2022 Checkmark Icon Verified purchase

21 found this helpful


Great value

Great value and quick shipping, il buy again from this wesbite.

By Gjon on August 24, 2023 Checkmark Icon Verified purchase

19 found this helpful




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