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Rockford Fosgate Punch 75

25 to Life Limited Anniversary Edition
37.5W x 2 car amplifier

Item # 575PUNCH75

For 25 years, Rockford Fosgate has been setting the standard in mobile audio with car amplifiers made right here in...

Find what Fits your car

For 25 years, Rockford Fosgate has been setting the standard in mobile audio with car amplifiers made right here in...

Discontinued item

Item # 575PUNCH75

About the Rockford Fosgate Punch 75

For 25 years, Rockford Fosgate has been setting the standard in mobile audio with car amplifiers made right here in the U.S.A. Now they're paying tribute to their original Punch series models with a blast from the past — special limited edition "25 to LIFE" amplifiers. The production run is limited to only 2500, so don't delay if you want to own a piece of Rockford Fosgate history.

For 25 years, Rockford Fosgate has been setting the standard in mobile audio with car amplifiers made right here in the U.S.A. Now they're paying tribute to their original Punch series models with a blast from the past — special limited edition "25 to LIFE" amplifiers. The production run is limited to only 2500, so don't delay if you want to own a piece of Rockford Fosgate history.

The Punch 75 amplifier is built as tough as they come. The cast aluminum heatsink sheds heat efficiently for dependable operation. Heavy-duty wiring terminals allow you to connect thick speaker, power, and ground cables — important when you want to get maximum performance out of your system. The power ratings are extremely conservative: the Punch 75 will drive a pair of speakers with ease, or you can combine both channels to power a sub.

However you choose to use it, the Punch 75 offers plenty of control. High- and low-pass filters let you send only the frequencies you want amplified to your speakers. You can bump up the bass output right from the driver's seat with the wired remote control.

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Product highlights:

  • 2-channel car amplifier
  • 37.5 watts RMS x 2 at 4 ohms (60 watts x 2 at 2 ohms)
  • 120 watts RMS x 1 bridged output at 4 ohms (4-ohm stable in bridged mode)
  • variable high- or low-pass filters (40-400 Hz at 12 dB per octave)
  • wired remote bass boost (0-18 dB at 45 Hz)
  • custom-designed TO-247 MOSFET power supply and output stage for more clean headroom
  • CEA-2006 compliant
  • Tri-way capable (Tri-Way crossover required)
  • heavy-duty power and speaker terminals
  • preamp outputs
  • fuse rating: 30A x 2
  • 8-gauge power and ground leads with 60-amp fuse recommended — wiring and hardware not included with amplifier
  • 13-3/4"W x 2-5/8"H x 11-1/4"D
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # PUNCH 75

What's in the box:

  • 2-Channel amplifier
  • Terminal cover (installed)
  • 9/64" Allen wrench
  • Four 3/4" Self-tapping screws
  • Remote Punch Bass controller
  • Remote mounting bracket
  • Two 3/8" Self-tapping screws
  • 16.5' Flat remote cable (RJ-45 Plugs on both ends)
  • Installation & Operation manual (English/French/Spanish/ German/Italian)
  • Punch Amplifier Performance Verification Certificate
  • Rockford Fosgate 25th anniversary T-shirt (XL)

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Features
Inputs and Outputs Notes
Specifications

Features

Removable Terminal Cover: The Rockford Fosgate Punch75 amplifier features a removable terminal cover. The cover conceals all speaker and power wires, signal cables, the remote terminal, and the gain and crossover frequency controls for a cleaner installation.

Cast Aluminum Heatsink: The cast aluminum heatsink dissipates heat generated by the amplifier's circuitry. The inherent advantage of casting provides a 30% improvement of cooling over conventional extrusion heatsink designs.

MEHSA (Maximum Efficiency Heat Sink Application): MEHSA is a Rockford Fosgate proprietary process that increases the heat transfer from the MOSFET devices to the heatsink. The multi-layer insulated metal MEHSA substrate operates with minimal thermal resistance, spreading heat both downward and outward to quickly dissipate heat from each device across the heatsink. This allows greater power output, enhanced thermal stability, and maximum reliability.

TOPAZ (Tracking Operation Pre-Amplifier Zone): TOPAZ is a circuit that simply eliminates noise. The TOPAZ circuit allows the amplifier ground to move with the source unit ground, creating a "noise elimination" zone just before the preamp section. If there is any noise in the ground coming down the RCA line to the amplifier, TOPAZ amazingly tracks it down and eliminates it. The result is a 30-40dB improvement of the isolation between input ground and chassis ground.

Trans-ANA (TRANSconductance Active Nodal Amplifier): The trans-ANA is a circuit that allows the audio signal to pass through the amplifier at low voltage. The signal is directly level-shifted to the fixed high voltage rails via a pair of drive transistors. Signal linearity is assured by an active node formed by the drive transistors at ultrasonic frequencies. The result is crystal clear sound quality.

NOMAD (NOn-Multiplying Advanced Decision): NOMAD is an intelligent protection circuit that uses an analog computer to make real time decisions regarding temperature, voltage, current and impedance. The unit is protected without limiting sound output unless needed.

DSM (Discrete Surface Mount): In the manufacturing process high speed robotics are used to place 1% tolerance resistors and large board traces providing greater reliability and efficiency.

TO-247 MOSFET: The Punch75 utilizes ultra high performance MOSFET output devices, giving the amplifier more power handling capability as well as lower thermal impedance for more reliable operation, even under the harshest load conditions.

Internal Crossover: The amplifier's internal crossover is a 12dB/octave Butterworth filter selectable for high-pass, all-pass (full range) or low-pass operation variable from 40Hz to 400Hz.

Remote Punch Bass: The Punch Bass helps correct for acoustical deficiencies in the listening environment by helping reproduce full range sound without adding excessive boost. The Punch Bass control has a narrow band adjustment centered at 45Hz, variable from 0dB to +18dB. Using the mounting bracket, the supplied Punch Bass wired remote can be mounted in any convenient location. The module's case can be configured with the bracket above or below the module, or, without the case, mounted flush in your vehicle's dash (requires a 2" x 7/8" cutout with a maximum thickness of 3/8"). The wired remote is 2.320" wide, 1.237" tall, and 1.533" deep (2.575" including the knob and cable connection). The included cable is 16.5' long.

RCA Pass-Thru Jacks: The pass-thru jacks provide a convenient source for daisy-chaining an additional amplifier without running an extra set of RCA cables from the front of the vehicle to the amplifier location. The pass-thru jacks output a full-range signal.

Inputs and Outputs Notes

Power Connections: The power and ground terminals are nickel-plated captive c-clamp wire connectors and will accommodate up to 4-gauge wire. The remote turn-on terminal will accept wire sizes of 12 to 24-gauge. A Phillips-head or slotted screwdriver (not supplied) is required to tighten/loosen the terminals.

Speaker Connections: The 2-channel nickel-plated clamp wire connectors will accept wire sizes of 8- to 18-gauge. A Phillips-head or slotted screwdriver (not supplied) is required to tighten/loosen the terminals.

Remote Punch Bass Connection: An RJ-45 jack is provided for connecting the supplied Remote Punch Bass cable.

Specifications

CEA-2006 Compliance: The specifications given by Rockford Fosgate for the Punch75 amplifier comply with the new CEA-2006 Amplifier Power Standard from the CEA (Consumer Electronics Association). All manufacturers who comply with the standard can display the CEA-2006 logo on their product.

Performance Verification Certificate: Each amplifier comes with a Performance Verification Certificate which lists the results of a 10-point performance inspection as well as a measurement of the actual power output. The actual power output of the amplifier reviewed by Crutchfield was significantly higher than the rated power output.

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