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Rockford Fosgate

Punch P400X4

4-channel amplifier

329,00€
349,00€ 329,00€
-6%
incl. VAT , possibly plus shipping

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Highlights

  • 4-channel amplifier with 50W RMS power per channel at 4 ohms.
  • Highly efficient Class A/B circuit for warm sound.
  • Built-in punch EQ with +18dB boost at 45Hz.
Seen more cheaply Personal Offer
brand: Rockford Fosgate
Delivery time:
Available for delivery in 1-4 days
Number:
Piece
Watt RMS per channel:
100
Amplifier Type:
Class AB
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329,00€
349,00€ 329,00€

The Rockford Fosgate Punch P400X4 4-channel amplifier is an excellent way to power the sound system with plenty of power without taking up the entire trunk. This is made possible by a highly efficient digital Class A/B circuit, which provides a warm and detailed sound along with a massive aluminum heat sink.

features

  • High-level capable input with auto turn-on circuit
  • Characteristics of C.L.E.A.N. Attitude
  • 12dB/Octave Butterworth Crossover
  • Built-in punch EQ with +18dB boost at 45Hz
  • Damped Switching
  • Stealth control panel on the top
  • short-circuit protection
  • Die-Cast Aluminum Heat Sink
  • overcurrent protection

Specifications

  • 4-channel amplifier
  • RMS Power:
    • 50 Watt x 4 @ 4-Ohm
    • 100 Watt x 4 @ 2-Ohm
    • 200 Watts x 2 @ 4-Ohm bridged
  • Dynamic power
    • 82 Watt x 4 @ 4-Ohm
    • 137 Watt x 4 @ 2-Ohm
    • 266 Watts x 2 @ 4-Ohm bridged
  • Bridgeable: Yes
  • Frequency response: 20Hz to 20kHz +/- 1.0dB
  • Input sensitivity: 150 mV - 12 V
  • Circuit topology class: Class A/B
  • Efficiency (Average): 67%
  • Signal input: Hi/Low level: 2 RCA pairs
  • Sound control:
    • Front Punch EQ2 Bass: 0dB to +18dB @ 45Hz
    • Front Punch EQ2 Treble: 0dB to +12dB @ 12.5kHz
    • Rear Punch EQ2 Bass: 0 dB to +18 dB at 45 Hz
    • Rear Punch EQ2 Treble: 0dB to +12dB @ 12.5kHz
    • Function depends on the position of the LP/AP/HP switch.
    • Front High-pass/Low-pass (HP/LP): 50Hz-250Hz @ 12dB/Octave Butterworth
    • Rear High-pass/Low-pass (HP/LP): 50Hz-250Hz @ 12dB/Octave Butterworth
  • Optical Indicators: Power/Protection/Thermal LED
  • Cable diameter: 10mm²
  • Speaker cable diameter: 8mm²
  • Cooling: Convection
  • Operating voltage: 9 - 16 VDC
  • Recommended fuse: 60 A
  • Average current consumption (13.8 V music): 30 A
  • Max. current consumption (13.8 V sine): 60 A
  • Dimensions (H x W x D): 6.05 x 19.71 x 28.02 cm
  • Shipping weight: 4.89 Kg
The Punch P400X4 from Rockford Fosgate delivers an RMS power of 50 watts per channel at 4 ohms. At a load of 2 ohms, the power increases to 100 watts per channel. Additionally, through bridging, the amplifier can provide 200 watts per channel at 4 ohms. The dynamic power is also rated at 82 watts x 4 at 4 ohms, 137 watts x 4 at 2 ohms, and 266 watts x 2 when bridged at 4 ohms. These power parameters make the P400X4 an ideal choice for music lovers who prefer clear and powerful sound.
The Punch P400X4 from Rockford Fosgate is equipped with the innovative C.L.E.A.N. setting. This feature allows for precise adjustment of the amplifier levels to minimize distortion and ensure a balanced sound image. The system relies on visual indicators that warn the user when the optimal level is exceeded. With the C.L.E.A.N. setting, you can adjust levels and experience top-notch sound enjoyment, as it helps to make the most of the audio source without damaging the speakers. This technique is particularly useful for complex car audio installations.
The Punch P400X4 amplifier from Rockford Fosgate utilizes the built-in Punch-EQ for fine-tuning the sound characteristics. The EQ allows for a bass boost of up to +18dB at 45Hz as well as a treble boost of up to +12dB at 12.5kHz. This enables the user to customize the sound to emphasize specific frequencies. This adjustment can be set separately for both the front and rear channels. Especially in bass-intensive music genres, the Punch-EQ makes a difference by generating powerful and clear lows without loss of quality.
The Punch P400X4 offers a linear frequency response of 20Hz to 20kHz with a tolerance of +/- 1.0dB. This wide frequency range ensures that both the deepest bass and the highest tones can be reproduced impressively and without disturbance. For more precise sound control, front and rear high-pass and low-pass filters are integrated, operating in the range of 50Hz to 250Hz at 12dB/octave. These sound filters allow for even finer tuning of the audio system according to individual listening preferences. Such a comprehensive frequency range provides a dynamic and rich audio experience.
The compatibility of the Rockford Fosgate Punch P400X4 depends on the specific dimensions and requirements of your vehicle system. With its compact dimensions of 6.05 cm x 19.71 cm x 28.02 cm, the amplifier fits into most vehicle models that provide sufficient space in the car audio system area. Since the amplifier does not require specific car brands, it can be integrated into most standard car audio systems, provided that the power and signal inputs meet the technical specifications. However, installation may require adjustments if space is limited.
The cooling of the Punch P400X4 is ensured by a massive and specially shaped aluminum heat sink. This convection cooling increases the efficiency of the amplifier by utilizing passive heat dissipation to prevent overheating. The design of the heat sink maximizes the heat dissipation surface, which is particularly advantageous under high loads during operation. This effective cooling supports the longevity of the Punch P400X4 and ensures that optimal operating conditions are maintained even with extended use.
The Punch P400X4 is designed to process both high and low level signals, which is enabled by its two RCA pairs for Hi/Low level. The signal conditioning Auto Turn-On circuit can also automatically activate high level input sources, ensuring flexible integration into existing systems. With an input sensitivity ranging from 150 mV to 12 V, the amplifier can be connected to a variety of audio systems to achieve the highest sound quality. This makes connecting the device simple and efficient for various signal sources.
The Punch P400X4 offers comprehensive safety features, including an intelligent short-circuit protection system and overcurrent protection. These technologies protect the amplifier and connected speakers from potential damage due to voltage fluctuations or current overloads. Additionally, optical indicators are integrated, which inform about the operating and protection status via LED lights. These indicators facilitate the identification of faults and help in the immediate initiation of protective measures to ensure consistent and reliable performance.
The installation of the Punch P400X4 requires precise planning, especially regarding cable routing and securing it in a suitable location. With a recommended fuse of 60 A and a maximum current draw of 60 A at 13.8 V, a correct power supply must be ensured. Using 10mm² cables for power and 8mm² for speakers minimizes power losses. Choosing a ventilated location for mounting is advisable to fully utilize passive convection cooling. Central aspects during installation include avoiding signal interference and adhering to polarity.
The cast aluminum heat sink of the Punch P400X4 not only serves pure heat management but is crucial for maintaining audio performance. Through optimal temperature regulation under intense sound demands, the amplifier remains stable and consistently delivers excellent sound quality. The heat sink promotes efficient heat dissipation, optimizing thermal management in tight installation situations. The result is enhanced protection against thermal stress, which in turn increases reliability even with large volume differences. Thus, the aluminum heat sink is more than just a weather-protected protective mechanism.

Audio Design Loudspeaker Sales GmbH
Am Breilingsweg 3
76709 Kronau
Germany

Authorized Managing Director:
Bruno Dammert

Contact: info@audiodesign.de

Product Specifications

Manufacturer

Rockford Fosgate

Product type

4-channel amplifier

Features

  • Highlights

    • 4-channel amplifier with 50W RMS power per channel at 4 ohms.
    • Highly efficient Class A/B circuit for warm sound.
    • Built-in punch EQ with +18dB boost at 45Hz.

  • Uvp

    399

weight

2.54 kg

Watt RMS per channel

100

configurators

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Your advantages with Masori

Power Performance and RGB with Rockford Fosgate Punch P400X4: 4-channel amplifier

Experience unparalleled audio quality and performance with the Rockford Fosgate Punch P400X4, a 4-channel amplifier that will take your audio experience to the next level. With an RMS output of 50 watts x 4 at 4 ohms and 100 watts x 4 at 2 ohms, this amplifier offers enough power to optimally drive your car speakers. A bridgeable mode allows for the generation of 200 watts x 2 at 4 ohms, making the Punch P400X4 ideal for use with powerful subwoofers. The dynamic power of 82 watts x 4 at 4 ohms and 137 watts x 4 at 2 ohms demonstrates just how much punch this amplifier can truly deliver. With the Masori Lowest Price Guarantee, you can be sure you're getting this amplifier at an unbeatable price.

Rockford Fosgate amplifier Punch P400X4 with Class A/B topology for warm sound

The Rockford Fosgate Punch P400X4's digital Class A/B circuit technology offers the optimal balance between efficiency and sound quality. This circuit is known for its warm and nuanced sound, which is often lacking in heavier Class D amplifiers. With an average efficiency of 67%, this amplifier ensures efficient power management without compromising audio performance. A higher efficiency could compromise sound quality and warmth, while a lower efficiency could further increase power consumption. This makes the Punch P400X4 ideal for anyone seeking high-quality sound without unnecessarily high power consumption.

High-level input and auto turn-on circuit of the Punch P400X4 for seamless integration

With high-level inputs and an auto turn-on circuit, the Punch P400X4 is easy to integrate into existing audio systems. The circuit design allows the amplifier to turn on automatically when an input signal is detected. This feature is especially useful if you want to connect the amplifier to factory audio systems that don't have a dedicated turn-on line. Having fewer intelligent inputs would significantly limit usability, and more options could lead to more complex installations. That's why the Punch P400X4 is the perfect solution for flexibility and ease of use.

Powerful EQ controls and 12dB/octave Butterworth crossover

The Punch P400X4 features a built-in Punch EQ2, which allows you to control the bass with a boost of 0 to +18 dB at 45 Hz and the treble from 0 to +12 dB at 12.5 kHz. These settings allow you to customize the sound to suit your preferences and get the most out of your speakers. At a price, inferior EQ controls would quickly distort the sound. The 12 dB/octave Butterworth crossover ensures that only specific frequency ranges are sent to your speakers, minimizing distortion. A softer crossover could lead to overdrive and impair sound clarity.

Damped activation and protection mechanisms of the Punch P400X4

Another technical highlight is the dampened power-on function, which minimizes annoying noise during power-up. Furthermore, the Punch P400X4 offers short-circuit and overcurrent protection, ensuring safe performance, even under intensive use. These safety features prevent potential damage to your setup and extend the lifespan of the amplifier. Without these protective features, the risk of damage would be significantly higher, ultimately compromising reliability.

Stealth control panel and massive aluminum heatsinks on the Rockford Fosgate amplifier

The stealth control panel on the top of the Punch P400X4 allows you to adjust settings quickly and easily, while the custom-designed, solid aluminum heatsink provides effective passive cooling. This design efficiently dissipates heat, preventing overheating and ensuring consistent performance even during long listening sessions. Without such optimized cooling, the electronics could overheat under extreme load, compromising sound quality.

Frequency range and operational flexibility of the Rockford Fosgate Punch P400X4

The operating voltage of 9 to 16 VDC allows operation in a wide variety of driving situations and vehicle types, while the frequency response of 20 Hz to 20 kHz ensures accurate coverage of the entire audible spectrum. This makes the amplifier a versatile companion for any vehicle acoustics. A more restricted operating voltage or frequency response could limit your system, affecting adaptability and sound reproduction.

Convenient cabling and connection options for the Punch P400X4

With a 10mm² cable cross-section for the connectors and 8mm² for the speaker cables, the Punch P400X4 offers convenient wiring that can handle even higher current loads. Such cable diameters are essential for stable transmission even at higher speaker power. Smaller cable cross-sections could reduce current flow, leading to sound loss and overheating.

Extended support by masori.de for Rockford Fosgate amplifiers

With on-site installation in Frankfurt (Oder) and installation service , masori.de offers excellent support during installation. Further assistance is available through the expert support FAQ & Help , and additional information can be found in the Audio Blog . This ensures that you are supported at every stage—from purchase to installation to fine-tuning—so you can maximize the full potential of your Rockford Fosgate Punch P400X4.