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Rockford Fosgate Punch P500-2
2-channel car amplifier
125 watts RMS x 2 (New Stock)
Our take on the Rockford Fosgate Punch P500-2 by Crutchfield's Buck Pomerantz
Rockford Fosgate Punch amps
Rockford Fosgate continues to develop progressive sound technologies. Their aim to produce a smaller amplifier, with all the power and clarity you expect from the Punch name.
Dynamic Thermal Management
The award-winning "Dynamic Thermal Management" 3-stage cooling system uses forced air to dissipate heat evenly across the amp and out through the heatsink. The internal components in these compact amps stay cooler, resulting in higher efficiency and lower distortion. You get more installation options, without sacrificing wattage or audio quality.
MEHSA cooling process
MEHSA is a Rockford Fosgate proprietary process that increases the heat transfer from the MOSFET devices to the heatsink. This allows the heat to escape more readily from the amplifier, so that the transistors stay cooler.
P500-2 Punch performance
The P500-2 2-channel amplifier dispenses 125 watts RMS per channel to your speaker system, or you can bridge it to send 500 watts to a sub. You can tailor the sound with variable-frequency high- and low-pass filters, and use the onboard EQ to add some high- and low-frequency punch to compensate for your car's acoustics. An optional wired remote control lets you tweak the sound from the front seat for quick adjustments while you're on the road.
I have this amp powering two 12's in a sealed box and they still pound crazy. I am very impressed with the power this amp kicks out, and for the price you can't go wrong. I could use a lil more power but this amp does the job no problem.
What's in the Box:
- Two channel amplifier
- Four 1-1/2" Self-tapping screws
- Installation & Operation manual (English/ French/ Spanish/ German/ Italian)
- Punch Amplifier Performance Verification Certificate
- 2-channel car amplifier
- 125 watts RMS x 2 at 4 ohms (250 watts RMS x 2 at 2 ohms)
- 500 watts RMS x 1 bridged output at 4 ohms (4-ohm stable in bridged mode)
- CEA-2006 compliant
- Dynamic Thermal Management cooling system
- variable high- and low-pass filters (50-500 Hz, 12 dB/octave)
- variable bass/treble boost (0-18 dB at 45 Hz, 0-12 dB at 12,000 Hz)
- optional wired remote bass/treble boost
- Class-AB amplifier design
- MOSFET power and output stages
- preamp inputs and outputs
- 4-gauge power and ground leads and a 100-amp fuse recommended wiring and hardware not included with amplifier
- no on-board fuses when installing multiple amps in a system, an additional 100-amp in-line fuse between the distribution block and the amplifier is recommended
- 13"W x 2-1/4"H x 8-1/2"D
- warranty: 1 year
- Our 60-day money-back guarantee
Rockford Fosgate Punch P500-2 Reviews
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Features and Specs
|RMS Power Output (Watts x Channels)||
125 x 2
|Peak Power Output (Watts x Channels)||1115 x 2|
|Power at 2 Ohms (Watts x Channels)||250 x 2|
|Bridged Power (Watts x Channels)||500 x 1|
|Minimum Impedance Bridged||4|
|Minimum Impedance Unbridged||2|
|Best Frequency Response||20-20k Hz|
|THD at Rated RMS Power||1%|
|Signal to Noise Ratio||85 dB|
|Low-Pass Crossover Frequency||50-500 Hz|
|Low-Pass Slope (dB/octave)||12 dB|
|High-Pass Crossover Frequency||50-500 Hz|
|High-Pass Slope (dB/octave)||12 dB|
|Bass Boost||0-18 dB|
|Bass Boost Frequency||45 Hz|
|Speaker Level Inputs||No|
|Preamp Outputs||1 pair|
|Parts Warranty||1 Year|
|Labor Warranty||1 Year|
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.
Dynamic Thermal Management (DTM): DTM Evenly distributes excess heat across entire amplifier heatsink.
MEHSA³ (Maximum Efficiency Heat Sink Application-Third Generation): 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.
Trans-ANA (TRANSconductance Active Nodal Amplifier): 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.
TO-247 MOSFET: The Punch 500-2 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.
DSM (Discrete Surface Mount): In the manufacturing process high speed robotics are used to place 1% tolerance parts and large board traces. DSM improves the efficiency of the circuit, decreases cross-talk from other discrete components and lowers operating temperature.
Power and Protection LEDs: The LEDs are located on top of the amplifier. A blue Power LED illuminates when the amplifier is turned on. A red Thermal LED illuminates if the amplifier overheats. The yellow Protect LED illuminates if a short circuit or too low an impedance is detected at the speaker connections. When any of the protection circuits engage, the amp automatically shuts down until the problem is corrected.
Internal Crossover: The amplifier's internal crossover has a 12 dB/octave slope. It's selectable for high-pass, all-pass (full range), or low-pass operation and is variable from 50Hz to 500Hz.
Punch EQ: Punch EQ works along with the crossover switch. When the crossover is set to low-pass, the Punch EQ acts as a variable bass boost; 0-18 dB at 45 Hz. When the crossover is set to high-pass, the Punch EQ acts as variable treble boost, 0-12 dB at 12 kHz. When the crossover is set to all-pass, both the bass and treble boost circuits are active.
Power Connections: The power and ground terminals are nickel-plated captive c-clamp wire connectors and will accommodate up to 4-gauge wire. An external 100-amp fuse (not included) must be installed on the power wire. If a wiring kit is used which includes a fuse with a value other than 100-amps, the original should be replaced with a 100-amp fuse. 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.
Differential Input: Differential input circuitry measures the voltage of both the positive (+) and negative (-) portions of the input signal, subtracting the voltage common to both conductors (noise); resulting in a cleaner signal. Reducing the noise on the input then improves the sound quality of the output.
Speaker Connections: The 2-channel nickel-plated clamp wire connectors will accept 8-gauge to 18-gauge wire. A Phillips-head or slotted screwdriver (not supplied) is required to tighten/loosen the terminals.
Remote Punch EQ (PEQ) Connection: An RJ-45 jack is provided for connecting an optional remote PEQ control (575ROCKPEQ, sold separately). If you use the remote PEQ, the Punch EQ control on the amp is disabled, and replaced by the remote.
Note: Previous model Punch Bass and Para-Punch remotes will not work with this amp.
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.
Our Product Research Team
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