Rockford Fosgate M5-800X4 4 Channel Element Ready Amplifier - 125x4 @ 4-Ohm, 200x4 @ 2-Ohm, 400x2 @ 4-Ohm Bridged - Used, Open Box

Rockford Fosgate amplifiers are known world-wide for producing more power than their ratings suggest. The M5 amplifiers are the first series based on new industry standard Dynamic Power ratings, bringing their conservative ratings to the forefront. Engineered from the ground up and purpose-built to deliver more output where you actually hear it, this is real dynamic power that performs not only on paper, but performance heard through the musical experience. You’ll see two amplifier power ratings, the traditional Continuous Power output, and the new Dynamic Power output, both tested in accordance with the CTA-2006 specification. Consider Continuous Power as wattage developed on the test bench for comparison against other amplifiers in the same class, and Dynamic Power as real-world wattage when connected to a speaker load, listening to music. Either way you look at it, Rockford Fosgate is proving – once again – these amplifiers are powerful enough to drive any speaker or subwoofer you throw at them.

• Element Ready™ design with integrated harness & panel seals
• PRESET removes the need to set-up and tune the amp when used with Rockford Fosgate UTV audio kits
• Play all day, easy to integrate, and keep music playing for extended lengths of time
• C.L.E.A.N. input/output clip detection and indicator LEDs
• Constant Power provides instantaneous delivery of output over varying impedance loads
• Focused mass heat sink allows critical aluminum material to be located around hottest internal devices
• Top mounted control panel with Element Ready™ smoked lens cover
• OEM and aftermarket radio integration inputs
• Low Impedance Stability
• Proprietary testing using RATS (Rockford Automated Testing System)
• Proprietary Class-AD technology allows amplifier to produce more power with less current draw
• Discrete Surface Mount technology utilizes 1% tight-tolerances for high efficiency and reduced cross-talk
• MESHA 4 reduces MOSFET temps, lowers distortion, increases durability and prolongs device life span
• Chassis Isolation from mounting points greatly reduces possible introduction of vehicle noise
• Balanced Differential Inputs eliminates noise picked up by signal cables
• Remote-Out feature when using high level inputs
• 2-Year Warranty

Used Frequently Asked Questions

• What does used mean? Used products may be unused customer returns that are essentially "new" items, or they may be previously installed products that were returned under warranty or during our return policy period.
• What is the warranty? All of our used items come with a 90-day warranty.
• What's it look like? All of our used items are inspected and graded by our returns team at our facilities. They will test them and grade them to one of four standard gradings: Used Open Box, Used Very Good, Used Good, and Used Acceptable. Please see the following descriptions of each grade - also note that if an item falls under ANY of the criteria for a certain grade, even though the rest of the product is better, we will give it the lowest grade.
• Used Open Box An item in perfect working condition. Original protective wrapping may be missing, but the original packaging is intact and in good condition with minor damage possible. Instructions are included.
• Used Very Good A well-cared-for item with limited use, remains in good working condition. The item may show some limited signs of wear,small scratches,cosmetic blemishes. Item may arrive with damaged packaging or be repackaged and could be missing some accessories.
• Used Good The item shows wear from use, remains in good condition and functions properly. May have damaged packaging or be repackaged. It may be marked, have identifying markings on it, have minor cosmetic damage. It may be missing some parts or accessories.
• Used Acceptable The item is fairly worn but continues to function properly. While repackaged; signs of wear can include aesthetic issues; scratches, dents. The item may have markings on it or show signs of previous use. Item may be missing some parts or accessories.
• Have more questions? Call us, send us a chat, or an email. We'll be able to answer any additional questions you may have.