Rockford Fosgate TM400X4AD 4 Channel Marine Amplifier - 100x4 @ 4-Ohm, 100x4 @ 2-Ohm, 200x2 @ 4-Ohm Bridged - Used Very Good

The Power TM400X4ad 400 Watt 4-channel ultra-compact, amplifier is built on Rockford Fosgate’s proprietary Class-AD technology, featuring Constant Power to produce the same output at both 4-Ohm and 2-Ohm impedances. Flexible vehicle integration enabled through low-level and high-level inputs with auto turn-on. Top mounted controls allow easy access to built-in crossover and C.L.E.A.N. input/output clip detection circuits. The 3-stage thermal lock extrusion with dual fan forced induction keeps everything cool while real-time thermal/protection schemes safeguard the amplifier.

• Rockford Fosgate proprietary Class AD technology
• 4/2 Ohm muti-impedance Constant Power
• Differential inputs with high level auto turn-on feature
• 8 AWG power/ground connector w/ upgraded RCA connectors
• Remote-Out feature when using high level inputs
• 2/4 channel input switch
• 4 Ohm bridged capable
• C.L.E.A.N. input/output clip detection and indicator LEDs
• Top mounted controls
• Dual fan cooled
• Real time thermal sensing
• Dual extruded heat sinks
• Discrete surface mount technology
• Marine grade two part epoxy coating on circuit boards
• 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.