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Rockford Fosgate  TM400X4AD On Sale

Power Series 4-Channel 400W Max Power 4 Ohms Class A/D Amplifier For Marine and Powersports Applications

Item #45794

Condition:   Brand New

Product Highlights

  • Power Series 4-Channel Amplifier
  • 400W Max Power
  • 4 Ohms
  • Class A/D
  • Marine and Powersports Applications

  Free 2-Years Warranty Included!
60 DAYS Returns Accepted.
FREE Lifetime Tech Support.
FREE Shipping.
60 DAYS Price change protection.

$399.99

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Reg. Price $729.99  Save $330.00
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  Free 2-Years Warranty Included!
60 DAYS Returns Accepted.
FREE Lifetime Tech Support.
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60 DAYS Price change protection.

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Rockford Fosgate TM400X4AD Power Series Class AD 4-Channel Amplifier For Marine and Powersports Applications


We are a Rockford Fosgate authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!

What's Inside?
  • • 4-Channel moto-marine amplifier
  • • Power/ground/turn-on plug (installed)
  • • (2) 8" Speaker output harnesses (bare wire to 4-pin Molex)
  • • (2) 14" Input harnesses (2 RCA to 4-pin Molex)
  • • Amplifier Quick Setup
  • • Certificate of Performance Verificationl
  • Owner's Manual

 


Why Choose Rockford Fosgate TM400X4AD Marine Amplifier?


Rockford Fosgate TM400X4AD Marine Amplifier Front View
Featuring Constant Power

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.

Easy Access to Built-in Crossover
< p> 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 TM400X4AD Marine Amplifier Internal Circuit
Rockford Fosgate TM400X4AD Marine Amplifier Connection Panel
Made to Handle Moisture and Heat

It's built to stand up to outdoor life, too, with conformal-coated circuitry that withstands moisture and dirt and stainless steel hardware that won't succumb to corrosion. With a 3-stage thermal lock extrusion, dual- fan forced induction system, and real-time thermal monitoring, the TM400X4AD can rock hard without overheating – even when it's tucked into a tight space.

 


Frequently Asked Questions (FAQ)


  • • Why does the amplifier have no power?
    Check the fuse, battery connection, ground, and power cable. Loose connections or a poor ground can prevent the amplifier from turning on.
  • • Why does it keep going into protection?
    Check for shorted speaker wires, incorrect impedance, overheating, or weak power connections. Make sure the load is within the amplifier's limits.
  • • Why does the sound cut out at high volume?
    Low voltage, overheating, excessive gain, or an unsuitable speaker load can cause shutdowns. Check the power supply and amplifier settings.
  • • Why do I hear a whining noise through the speakers?
    Whining is often caused by grounding or signal interference. Check the ground connection and keep signal cables separated from power wiring.
  • • Why is one channel not producing sound?
    Check the RCA inputs, speaker wiring, gain controls, and source output. Swap channels to determine whether the issue follows the input or speaker.
  • • Why does the amplifier get very hot?
    Some heat is normal, but excessive temperature may indicate poor ventilation, high output, or an incorrect load. Allow adequate airflow around the unit.
  • • Can it be used safely on a boat?
    It is designed for marine applications, but proper installation is still important. Protect connections, use suitable wiring, and mount the amplifier securely.
  • • Why does the audio sound distorted?
    Distortion can come from excessive gain, clipping, or an unsuitable speaker load. Lower the gain and check the source and amplifier settings.
  • • Why does the amplifier shut off after getting wet?
    Check for moisture around connections and terminals. Dry the area completely and inspect for corrosion or damaged wiring before restoring power.
  • • What should I check if it suddenly stops working?
    Inspect the fuse, power, ground, speaker wiring, and signal connections. Look for loose or damaged cables and check the amplifier's protection status.

SPECIFICATIONS


  • Maximum Power : 400 Watts
  • Low Frequency Response : 50-250 Hz
  • High Frequency Response : 50-250 Hz
  • Number of Channels : 4
  • Frequency Response : 20-20000 Hz
  • Built In Crossovers : Yes
  • Channel Separation : Yes
  • Amplifier Class : A/D
  • Fuse Rating : 60 A

FEATURES


Features:

  • Rockford Fosgate proprietary Class AD technology
  • 8 AWG power/ground connector w/ upgraded RCA connectors
  • Differential inputs with high level auto turn-on feature
  • Remote-Out feature when using high level inputs
  • 4/2 Ohm muti-impedance Constant Power
  • 2/4 channel input switch
  • Top mounted controls
  • C.L.E.A.N. input/output clip detection and indicator LEDs
  • 4 Ohm bridged capable
  • 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

 

Specifications:

  • RMS Power Output (Watts x Channels); 100 x 4
  • Frequency Response at Rated RMS Power: 20-20k Hz
  • THD at Rated RMS Power: 1%
  • Signal to Noise Ratio: N/A
  • Input Voltage: 14.4v
  • Peak Power Output (Watts x Channels): 128 x 1
  • Power at 2 Ohms (Watts x Channels): 100 x 2
  • Bridged Power (Watts x Channels): 200 x 1
  • Minimum Impedance Bridged: 4
  • Minimum Impedance Unbridged: 2
  • Amplifier Class: A/D
  • Low-Pass Crossover Frequency: 50-250 Hz
  • Low-Pass Slope (dB/octave): 12 dB/oct
  • High-Pass Crossover Frequency: 50-250 Hz
  • High-Pass Slope (dB/octave): 12 dB/oct
  • Bass Boost: 0-18 dB
  • Bass Boost Frequency: 45 Hz
  • Fan Cooled: Yes
  • Fuse Rating: 60
  • Speaker Level Inputs: Yes
  • Preamp Outputs: No
  • Height (inches): 1-11/16
  • Width (inches): 4-5/16
  • Depth (inches): 8-5/8
  • Parts Warranty: 2 Years
  • Labor Warranty: 2 Years

 

  • UPC: 780687345150
  • Weight: 4
  • Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 2 Year(s) from the original date of purchase with proper return authorization.

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