Skip disability assistance statement.

Welcome to our website! As we have the ability to list over one million items on our website (our selection changes all of the time), it is not feasible for a company our size to record and playback the descriptions on every item on our website. However, if you have a disability we are here to help you. Please call our disability services phone line at 512-454-4534 during regular business hours and one of our kind and friendly personal shoppers will help you navigate through our website, help conduct advanced searches, help you choose the item you are looking for with the specifications you are seeking, read you the specifications of any item and consult with you about the products themselves. There is no charge for the help of this personal shopper for anyone with a disability. Finally, your personal shopper will explain our Privacy Policy and Terms of Service, and help you place an order if you so desire.


Austin's TV & Home Theater Store Since 1967

Jbl MA704

JBL Marine MA704 Weather-resistant & high-performance 4-channel marine amplifier


  • Compact size
  • High- and low-level inputs
  • Selectable Output and Variable Adjustment Crossovers
  • Product Value

See More


Compact size JBL Marine amplifiers feature a slim chassis and a small footprint to allow for installation in tight spaces

High- and low-level inputs Speaker-level and low-level inputs let JBL Marine amps integrate with just about any audio input.

Selectable Output and Variable Adjustment Crossovers JBL Marine amps feature selectable all-, high-, or low-pass crossovers with variable electronic frequency adjustment to allow for fine-tuning multiple system configurations.

Product Value JBL power and performance at an affordable price point

Cosmetic Appeal Product family look and feel to meet the needs of our JBL customers

Conformal-Coated PCB JBL Marine amplifiers are engineered to withstand harsh marine conditions, with fully marinized circuit boards to ensure flawless power delivery, year after year

Variable Crossovers Onboard 12dB electronic crossovers, with selectable full-range, high-pass & low-pass switching, provide tuning options for systems of any size

Big Dynamic Power Output power is perfectly matched to meet the needs for your JBL marine products


  • Compact size
  • High- and low-level inputs
  • Selectable Output and Variable Adjustment Crossovers
  • Product Value
  • Cosmetic Appeal
  • Conformal-Coated PCB
  • Variable Crossovers
  • Big Dynamic Power
General Specifications
Max Power 1000W Peak
RMS Power Output @ 2 100W x 4,
RMS Power Output @ 4 70W x 4,
RMS Power Output, 4 Bridged 200W x 2,
Signal-to-Noise Ratio >85dB (ref 1W output @ 4 )

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Extended warranties are usually very inexpensive and can save you thousands in the future. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Electronics can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new electronics should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.