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  3. Rockford Fosgate Speakers, Subwoofers & More for Cars
  5. TM400x4 AD

Rockford Fosgate TM400x4 AD 4-Channel Amplifier

50 Reviews

100 Watt

Rockford Fosgate TM400x4 AD 4-Channel Amplifier

50 Reviews

Technical Highlights

  • 400 W, 4-channel, Class AD technology, coated circuit board.
  • Thermal sensors, top-mount controls, 2 heat sinks.
  • Compatible with Harley-Davidson®, versatile audiovisual enhancement.
  • More technical details
€579,00
€579,00 €579,00
5% discount with prepayment
inkl. VAT , possibly plus shipping
Delivery
Mar 23, - Mar 26,
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TM400x4 AD by Rockford Fosgate

Experience the first-class performance of the TM400x4 AD 4-channel motorcycle amplifier, presented by Rockford Fosgate. The TM400x4 AD features high-efficiency Class-AD technology and a specially coated circuit board designed for motorsport and marine applications. In addition to its extensive functionality, including Rockford Fosgate's proprietary Class-AD technology, the amplifier offers real-time thermal sensing, top-mount controls, and features two extruded heat sinks. With the option to bridge to 4 ohms and compatibility with all Harley-Davidson® models, the TM400x4 AD provides a versatile and powerful audiovisual upgrade for your motorcycle.

Functions

  • Rockford Fosgate proprietary Class-AD technology
  • 10mm² power/mass connection with improved RCA connectors
  • Differential inputs with automatic switch-on function with high level
  • Remote Out Function when using High-Level Inputs
  • 4/2 Ohm Multi-Impedance Constant Power
  • 2/4-channel input switch
  • Top-mounted controls
  • C.L.E.A.N. Input/Output Clip Detection and Display LEDs
  • 4 Ohm bridgeable
  • Cooled with two fans
  • Thermal Sensing in Real Time
  • Two extruded heat sinks
  • Discrete Surface Mount Technology
  • Two-component epoxy coating in marine quality on circuit boards

Compatibility

  • Suitable for all Harley-Davidson® models

Service description

  • Number of channels 4
  • total performance
  • (Total nominal power) 400 Watts
  • (RMS) 100 Watt x 4 @ 4-Ohm
  • 100 Watts x 4 @ 2-Ohm
  • 200 Watts x 2 @ 4-Ohm bridged
  • Dynamic power
  • (PVC/PowerCube®) 128 Watt x 4 @ 4-Ohm
  • 152 Watts x 4 @ 2-Ohm
  • 290 Watts x 2 @ 4-Ohm bridged
  • Bridgable Yes
  • Connections front: Left (+) Right (-)
  • Rear terminals: Left (+) Right (-)
  • Frequency response 20Hz-20kHz +/-1dB
  • Input sensitivity 150 mV to 12 V
  • Circuit topology Class AD
  • Efficiency (Average) >75%
  • Clipping factor (THD+Noise) 4 Ohm: <1.0 % 2 Ohm: <1.0%
  • Signal input Front High/Low-Level input: 4-pin wiring harness
  • Rear high/low-level input: 4-pin wiring harness
  • Tone control treble: 0 to +14 dB @ 12.5 kHz
  • Bass: 0 to +18 dB @ 45 Hz
  • Frequency crossover controls High-pass: 50Hz-250Hz @ 12dB/Octave Butterworth
  • Low-pass: 50Hz-250Hz @ 12dB/Octave Butterworth
  • All-Pass: Yes
  • Optical Display Performance: Blue LED
  • Protect: Red LED
  • Input clip: Red LED
  • Output clip: Blue/Purple/Red LED
  • LED Color Legend:
  • 1BLAU: <0.5 % distortion factor
  • 2VIOLETT: 1% CLEARING FACTOR
  • 3ROT: 10%+ THD
  • Cross-section of the power cable 10mm²
  • Current input connection detachable compression clamp
  • Substitute 1040-57997
  • Speaker wire gauge 1.5mm²
  • loudspeaker output connection
  • Front: 4-pole wiring harness
  • Rear: 4-pin wiring harness
  • Cooling dual fan cooled
  • Heat sink extruded aluminum
  • Operating voltage 9 - 16 VDC
  • Recommended fuse (not included) 60 A
  • Average current consumption (13.8 V music) 28 A
  • Max. current consumption (13.8 V sine wave) 55 A
  • Recommended alternator 75 A
  • Dimensions (H x W x D) 4.1 x 10.8 x 21.1 (cm)
  • Shipping weight 1.54 kg

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Frequently Asked Questions about TM400x4 AD

What are the technical features of the TM400x4 AD Amplifier?

The TM400x4 AD Amplifier from Rockford Fosgate delivers top-notch performance with its proprietary Class-AD technology, ensuring high efficiency. With a rated power of 400 Watts RMS distributed across 4 channels, it provides 100 Watts per channel at 4 Ohms or 2 Ohms. The integrated real-time thermal sensor protects against overheating, while C.L.E.A.N LEDs ensure precise input level control. The amplifier is equipped with two extruded heat sinks and dual fans for optimized cooling. This makes the TM400x4 AD ideal for both motorsport and marine applications.

What is the frequency response of the Rockford Fosgate TM400x4 AD?

The frequency response of the TM400x4 AD Amplifier covers the range from 20 Hz to 20 kHz (+/-1 dB), allowing for precise reproduction over a wide range of acoustic tones. The integrated crossovers support both high-pass and low-pass filters, adjustable from 50 Hz to 250 Hz at 12 dB/Octave (Butterworth). This allows for accurate tuning to the speaker installation and ensures the best possible sound quality. Particularly useful for audiophiles who want to suppress or emphasize specific frequency ranges.

What input sensitivity does the TM400x4 AD offer?

The TM400x4 AD Rockford Fosgate Amplifier features a flexible input sensitivity setting from 150 mV to 12 V. This allows for the connection of a wide variety of source devices, whether high-level or low-level output. The differential inputs reduce noise and improve sound quality. A remote-out function allows for activation when using high-level inputs. This is especially advantageous when devices do not provide standard line-out outputs or when the installation should remain visually unobtrusive.

How is the cooling concept of the TM400x4 AD designed?

The TM400x4 AD Amplifier is equipped with an effective cooling system consisting of two extruded aluminum heat sinks and dual fans. This design allows for reliable heat dissipation during intense use and protects against heat damage. The real-time thermal sensors continuously monitor the temperature, ensuring the safe operation of the Amplifier. These technical measures optimally cool the Amplifier both at low and high loads, promoting the longevity of the product.

What are the installation dimensions of the TM400x4 AD?

The dimensions of the TM400x4 AD Amplifier from Rockford Fosgate are 4.1 cm in height, 10.8 cm in width, and 21.1 cm in depth. This compact design allows for easy installation in motorcycles, especially in models with limited space for aftermarket amplifiers. When installing, care should be taken to leave sufficient ventilation around the Amplifier to fully utilize the efficiency of the cooling system and ensure overheating protection.

Is the TM400x4 AD compatible with Harley-Davidson models?

Yes, the TM400x4 AD Amplifier is specifically compatible with all Harley-Davidson® models. This compatibility is ensured by the compact dimensions and the robust two-component epoxy coating, which is suitable for use under challenging conditions. The ability to use different ohm resistance variants also contributes to versatility in installation across various motorcycles and when using different types of speakers.

What power supply does the TM400x4 AD Amplifier require?

The TM400x4 AD Amplifier operates at a supply voltage of 9 to 16 VDC and requires a recommended Fuse of 60 A. The average current draw at 13.8 V is 28 A with music, while it rises to 55 A at maximum load. For safe operation, an alternator with at least 75 A is recommended. These specifications ensure stable operation and prevent voltage drops that could cause sound distortion or system shutdowns.

What connection options does the TM400x4 AD offer?

The TM400x4 AD Amplifier provides both high-level and low-level inputs with a 4-pin wiring harness, increasing connection versatility. The power input is realized through a detachable compression terminal, while the speaker outputs are also equipped with 4-pin wiring harnesses. These interfaces allow for versatile installation options and ensure that the amplifier can be easily integrated into various existing audio systems, facilitating installation in retrofit projects.

What protection mechanisms are integrated into the TM400x4 AD?

The TM400x4 AD is equipped with several protection features to ensure safe operation. These include real-time thermal sensing that intervenes preventively in case of overheating risk, and optical LEDs that indicate any input and output distortions. These protection mechanisms work seamlessly with the Class-AD circuits to take preventive measures before critical thresholds can be exceeded. This ensures reliable operation even under demanding conditions.

How does the TM400x4 AD optimize sound?

The TM400x4 AD from Rockford Fosgate uses advanced Class-AD technology that minimizes noise and maximizes efficiency. With sound controls from 0 to +14 dB for treble and up to +18 dB for bass, specific sound aspects can be adjusted, while the crossover control allows for precise separations. Additionally, the input and output clip LEDs enable exact level adjustments to avoid distortion. Together, these features create an optimal sound landscape, ideal for enthusiasts who value clear and powerful audio playback.

Manufacturer information / responsible person

Audio Design Loudspeaker Sales GmbH
Am Breilingsweg 3
76709 Kronau
Germany

Authorized Managing Director:
Bruno Dammert

Contact: info@audiodesign.de

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