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Rockford Fosgate Power TM400X4ad

400W Power Series Class-AD Marine 4-Channel Amplifier

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Rockford Fosgate Power TM400X4ad

400W Power Series Class-AD Marine 4-Channel Amplifier

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NVX XUBT3 Universal Bluetooth Controller Knob

• iPhone, Android & Bluetooth Device Ready
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• Marine Grade Bluetooth Audio Controller/Receiver
• Designed for marine and powersports applications
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Rockford Fosgate TM400X4ad

Power TM400X4ad - 400 Watt Class-AD Ultra-compact 4-Channel Amplifier

The Power TM400X4ad 400 Watt 4-channel ultra-compact 4/2 Ohm muti-impedance Constant Power amplifier is built on Rockford Fosgate’s successful launch of the Mobile audio version of the Power Series amplifiers. Due to their flexibility, small footprint and high-end performance they were being used for motorcycles, UTVs and boat systems. Because of this, Rockford Fosgate engineers set out to create a version that was geared more toward a life in the elements - in comes the Element Ready series of Power amplifiers. The TM400X4ad is loaded with Rockford Fosgate's constant power technology that will produce the same output at both 4-Ohm and 2-Ohm impedances. The amplifier features very flexible vehicle integration 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. In addition, a brushed aluminum chassis with UV inhibitors added to the finish and a Marine grade two-part epoxy coating on the circuit boards ensures that you will continue enjoying your system while enduring even the most extreme of elements.




2-part Epoxy Coating

Beat the Elements

Extruded aluminum with UV inhibitors and 4 layer 2oz copper circuit board with 2-part epoxy coating are used for their UV radiation resistance and moisture protection. Rockford Fosgate moto-marine amplifiers not only have the capabilities you expect a Rockford amp to have, but they have been designed to stand up to the environmental conditions you are likely to subject them to. Whether out on the water, on the mud or in the back roads these amplifiers are designed to perform through Dust, UV, Corrosion and whatever beating you plan to subject them to.


CLEAN (Calibrated Level Eliminates Audible Noise)

C.L.E.A.N. Set-Up

Take the headache out of tuning and dialing in your system. Rockford Fosgate’s integrated level setting technology called CLEAN (Calibrated Level Eliminates Audible Noise), utilize simple LED indicators to identify both signal clipping from the audio source and the output level clipping to the speakers. This precise level set-up eliminates speaker damaging distortion by making sure that the system is passing through a safe clean signal. No more fumbling with meters, formulas and crunching numbers, dial in your system to the proper calibrations with ease.





General Features:


 

 

 

 

 
  • Element Ready Power Series Class-AD 4-Channel Amplifier
  • RMS Power Rating:
    • 4 ohms: 100 watts x 4 chan.
    • 2 ohms: 100 watts x 4 chan.
    • Bridged 4 ohms: 200 watts x 2 chan.
  • Includes Rockford Fosgate Performance Verification Certificate
    w/ Inspection Data & Actual Power Rating, (aka "Birth Sheet")
  • CEA-2006 Compliant Amplifier
  • 4/2 Ohm muti-impedance Constant Power
  • Rockford Fosgate proprietary Class-AD technology
  • Differential inputs with high level auto turn-on feature
  • Remote-Out feature when using high level inputs
  • Features C.L.E.A.N. Set-up with 10-step set-up procedure
    w/ input/output clip detection and indicator LEDs
  • 4-layer 2oz. copper circuit board with 2-part epoxy coating
  • Real time thermal sensing with Rollback technology
  • Top mounted easy access controls
  • 2/4 channel input switch
  • 4 Ohm bridged capable
  • Twin fan cooling system
  • Dual extruded heat sinks
  • Discrete surface mount technology
  • Extruded aluminum with UV inhibitors
  • Molex, marine grade nickel plated connectors
  • Ferrite core coated/booted transformer
  • TO-220 MOSFETs with MEHSA

  •  
  • 3-stage thermal lock extrusion
  • Efficiency (average): >75%
  • Input sensitivity: 150mV - 12V
  • Frequency Response: 20 - 20,000 Hz
  • Total Harmonic Distortion (THD): <1.0%
  • Variable bass boost (LP): 0 to +18 dB bass boost at 45 Hz
  • Variable treble boost (HP): 0 to +14 dB bass boost at 12.5 Hz
  • Selectable Crossover: LP / AP / HP
  • Variable low-pass filter: 50 - 250 Hz, 12 dB/octave
  • Variable high-pass filter: 50 - 250 Hz, 12 dB/octave
  • Recommended Fuse Rating: 60A x 1 (not included)
  • Dimensions: 4.25"W x 8.30"L x 1.60"H
  • 16 gauge speaker output connections
  • 8 gauge power and ground wiring is recommended for installation
  • Installation Kit for Select Harley-Davidson Motorcycles available: Rockford Fosgate RFKHD9813
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Power Specifications - Full Range Channels

RMS Power @ 4 ohms

The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far.

If the final impedance of your speakers or subwoofers equals 4 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound.

100 watts x 4 channels
RMS Power @ 2 ohms

The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far.

If the final impedance of your speakers or subwoofers equals 2 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound.

100 watts x 4 channels
Bridged RMS Power

Bridging refers to combining two channels on an amplifier to create one channel with double the voltage and an increased power output. A 2-channel amplifier will bridge down to 1-channel and a 4-channel amplifier can bridge to create 2-channels. An amplifier is most commonly bridged to drive a subwoofer.

Remember, once you bridge two channels down to one its final impedance will be 4 ohms unless otherwise specified. This rating lists the RMS power created once an amplifier is bridged.

200 watts x 2 channels

Amplifier Specifications

Amplifier Series
This designates the series of the amplifier. Many amps are available in a litany of different wattage and channel configurations, but maintain consistent features throughout the product line.
Power (Rockford Fosgate)
Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.

AD
Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
4
Total RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.

400 watts
Maximum Input Gauge Size
This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.
8 AWG
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
2 ohms
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
4 ohms
THD at Rated RMS Power
The amount of change in harmonic content of the signal as it is amplified. A lower figure indicates less change and a more accurate amp. THD below 0.10% is inaudible.
<1.0%
Speaker Level Inputs
Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.
Yes - with included adapter
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Low-Pass (LP)
High-Pass (HP)
Full (AP)
High-Pass Crossover Frequency
The high-pass crossover frequency can be a fixed crossover point or a variable crossover range. A variable high-pass crossover allows you to select a specific crossover point which allows frequencies above the set crossover point to pass, while making frequencies below the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

50 - 250 Hz
Low-Pass Crossover Frequency
The low-pass crossover frequency is typically used for subwoofers. It can be a fixed crossover point or a variable crossover range. A variable low-pass crossover allows you to select a specific crossover point which allows frequencies below the set crossover point to pass, while making frequencies above the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

50 - 250 Hz
Bass Boost
The objective of the bass boost is to get more kick out of your subwoofer. It is a circuit that emphasizes the lower frequencies at a given point. The bass boost should always be set first before setting the gain. This feature is known for destroying subwoofers and is commonly used incorrectly, so be cautious.
0 - 18 dB
Bass/Gain Remote
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
No
Fuse Rating
The amperage and the number of fuse(s) an amp requires.
60A X 1 In-Line Fuse Recommended
CEA-2006 Compliant
Amplifiers that have been tested to meet specific standards. When a car amplifier meets these standards, you can be sure that it will be able to produce the amount of power specified by the official CEA-2006 rating. Usually, these rating consist of the following items:
  • RMS Power
  • Signal-to-Noise Ratio

This rating applies to both external car amplifiers, as well as the amplifiers inside of in-dash stereos.

Yes

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Parts Warranty Duration
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Labor Warranty Duration
1 year
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Product Summary

Manufacturer

Model Number

TM400X4ad

UPC

780687345150

Weight

3.40lbs

Internal SKU

tm400x4ad

Internal Product ID

94295

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Rockford Fosgate Power TM400X4ad