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Soundstream MA680.4 R/B

680W RMS, 4-Channel Marine Amplifier

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The product on this page is discontinued.

Specials with this product

  • Free Ground Shipping to the 48 statesdetails
This product is Factory Refurbished.
  • 4-Channel Digital Full Range Marine Amplifier
  • Fully Regulated MOSFET Power Supply
  • RMS Power Rating:
    • 85 Watts x 4 Channels @ 4 Ohms
    • 170 Watts x 4 Channels @ 2 Ohms
    • 340 Watts x 2 Channel @ 4 Ohms (Bridged)
  • PWM Circuitry
  • Tri-Mode Operation
  • IDI (Intelligent Distress Indicator) Visual Protection Status Display
  • Platinum RCA Connectors
  • Marine Coated Circuit Board
  • Dash Mount Bass Knob Remote
  • White Marine UV / Salt / Fog Resistant Finish
  • Water-Resistant Construction
  • Line Outputs
  • Bi-Linear Selectable Crossovers
  • Subwoofer EQ Control: 0 - 12 dB
  • Adjustable Input Sensitivity: 200mV - 8V
  • Frequency Response: 10 Hz - 20 kHz
  • Platinum 4 Gauge Power Connectors
  • 4-Way Protection Circuitry: Thermal, Short, Overload, DC Offset
  • Stainless Mounting Hardware Included
  • Dimensions: 11.5" L x 8.75ma" W x 2" H
  • Authorized Internet Dealer
  • Item Condition: Factory Refurbished
  • 1-year Manufacturer's Warranty
Power Specifications - Full Range Channels
RMS Power @ 4 ohms85 watts x 4 channels
RMS Power @ 2 ohms170 watts x 4 channels
RMS Power @ 1 ohmNot Stable
Bridged RMS Power340 watts x 2 channels
Peak Power Output1360 watts approx.
Amplifier Specifications
Number of Channels4
Total RMS Power Output680 watts
Minimum Impedance Unbridged2 ohms
Minimum Impedance Bridged4 ohms
THD at Rated RMS Power0.02%
Speaker Level InputsNo
Preamp Outputs1 pair
Built-in CrossoverLow-pass (LP)
High-pass (HP)
High-Pass Crossover Frequency50 - 250 Hz
Low-Pass Crossover Frequency50 - 250 Hz
Subsonic FilterN/A
Signal-to-Noise Ratio100 dB
Channel SeparationN/A
Bass Boost0 - 12 dB
Bass/Gain RemoteN/A
Fan CooledNo
Fuse RatingN/A
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration1 year
Labor Warranty Duration1 year
Warranty ProviderManufacturer
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Product Summary

Manufacturer: Soundstream
Model number: MA680.4-RB
Weight: 18.00 lbs
Internal SKU: LS-ma6804-RB
Internal product ID: 20803

Why Sonic Electronix?

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Customer Testimonial

Awesome prices. I can't believe I was able to find the head unit that I wanted for such a low price. I had never heard of Sonic Electronix till I found their website. I'm buying speakers from these guys next week.

- ThExile from Columbus, ohio

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