I N G T H E Xcard | Rockford Fosgate PUNCH 4020 DSM manual

U S I N G T H E XCARD

The crossover functions are controlled through the use of an XCard and can be set for high-pass, low-pass or full range operation. These cards are shipped in the most common fre- quency. Each crossover card has two faces: one face operates Full Range, the other has arrows to indicate the edge for selecting HP (high-pass) or LP (low-pass) operation. Orient the card with the desired operating edge, indicated by the arrow, toward the socket terminals inside the amplifier. Firmly, but carefully, plug the card into the socket.

High Pass


➝LP		➝
➝LP	HP

Low Pass


➝HP			LP➝

Full Range

FULL ↕

The crossover point can be altered by changing the resistor value. Use the following formula to select the appropriate resistor value to be placed on the XCard.

3386	= R (in kΩ	) for .047∝ f cap	The actual formula is:
fo	= R (in kΩ	) for .047∝ f cap


			R =	1
7234 = R (in kΩ		) for .022∝ f cap	R =	2π foc
7234 = R (in kΩ		) for .022∝ f cap		2π foc

Crossover Card

R2	Pass	R1
Low Pass
Full Range

FULL

Where: R = Ω

fo = desired crossover frequency c = capacitor in farads

ex: .047 x 10-6for .047mf cap

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PUNCH 4020 DSM specifications

The Rockford Fosgate PUNCH 4020 DSM is a remarkable amplifier designed to deliver high-quality sound and performance for car audio enthusiasts. This powerhouse amplifier stands out with its compact design and impressive specifications, making it an ideal choice for those looking to upgrade their vehicle's audio system.

One of the standout features of the PUNCH 4020 DSM is its 4-channel design, allowing it to power multiple speakers simultaneously. With a maximum power output of 40 watts RMS per channel at a 4-ohm load, this amplifier provides ample power to drive aftermarket speakers effectively, ensuring that users experience rich, detailed sound reproduction.

In terms of technology, the PUNCH 4020 DSM boasts a variable high-pass crossover and a low-pass crossover, enabling users to tailor the sound output to suit their preferences. The high-pass filter allows users to remove low-frequency noise, enhancing clarity in the midrange and high frequencies. Conversely, the low-pass filter can be utilized for subwoofers to ensure a deep, booming bass response without distortion.

Another key characteristic of this amplifier is its durable construction. Built with high-quality components, the PUNCH 4020 DSM is designed to withstand the rigors of car environments while maintaining reliable performance. The heatsink design promotes efficient heat dissipation, ensuring that the amplifier operates within safe temperature limits even during extended use.

The PUNCH 4020 DSM also features an easy-to-navigate wiring harness that simplifies installation, making it user-friendly for both seasoned audiophiles and those new to car audio upgrades. The amplifier's compact size allows it to fit in tighter spaces, offering more flexibility during installation.

Additionally, the PUNCH series is known for its signature Rockford Fosgate sound – a combination of precise engineering and performance-focused design. This results in an amplifier that not only looks good but also delivers a dynamic listening experience that can transform any vehicle into an audio haven.

Overall, the Rockford Fosgate PUNCH 4020 DSM is a versatile, powerful amplifier that offers a host of features and technologies geared towards enhancing audio performance. Whether you're listening to your favorite tunes on the road or hosting a car audio competition, this amplifier represents a high-performance solution that does not compromise on quality or sound precision.

Rockford Fosgate PUNCH 4020 DSM manual I N G T H E Xcard

Models: PUNCH 4020 DSM

U S I N G T H E XCARD

PUNCH 4020 DSM specifications