PZ-4020.4-PRO Power Zone 4000 Watt Amplifier

Crunch PZ-4020.4-PRO POWERZONE 4000 Watt Amplifier 4-Channel Car Audio Amp

$ 249.99
Temporarily sold out

SKU: 806576227793 Category:

POWERZONE four channel amplifier highlighted with bright Crunch red heatsink elements feature high level inputs utilizing SPEED-FET output devices and QTD Technology produces 4000 watts of power in a four channel application.

Weight 10.4 lbs













1 Year

Compatible Vehicles


Amp Class

Class A/B

Amp Total Channels


Amp Max Power (watts)


Amp Power @ 2 Ohms (ch x watts)

4 x 1000

Amp Power @ 4 Ohms (ch x watts)

4 x 500

Amp Mono Bridged @ 4 Ohms (ch x watts)

2 x 2000

Amp Crossover

FULL/LPF/HPF, Switchable, VeraCross

Amp Variable High Pass Crossover 12dB per Octave

CH1 & CH2: Switchable HPF 60Hz-1.2kHz, CH3 & CH4: Switchable HPF 60Hz-1.2kHz

Amp Variable Low Pass Crossover 12dB per Octave

CH1 & CH2: Switchable LPF 30Hz-250Hz, CH3 & CH4: Switchable LPF 30Hz-250Hz

Amp Bass Boost


Amp Variable Voltage


Amp Signal to Noise

> 90dB

Amp Frequency Response


Amp Total Harmonic Distortion (THD)

< 0.05%

Amp Speaker Level Audio Inputs


Pre-amp Audio Outputs

Full Range, RCA

Amp Speaker Terminal Wire Gauge

Recommended, Spade Connector

Amp Fusing

40A x 2

Proposition 65 Notice WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
High Level Inputs

High level inputs easily tie into OEM audio systems that do not offer RCA output. Molex connector is included.

Operation Mode

2CH/4CH switch. 4 channel operation mode allows either stereo or mono bridged operation.

Crossover Type

Variable electronic crossovers allow for complete control of the sound.

Electronic Equalizer

Control of amplifier output with on-board electronic crossover to tailor specific frequencies to speakers and subwoofers. Check specifications for specific frequencies for this amplifier.

Class / Topology

Class A/B high sound quality circuit that allows amplifier to develop high levels of power with minimal distortion.

Output Device Technology

Exclusive Crunch SPEED-FET MOSFET components maximize power efficiency while improving sound quality and minimizing distortion.

Heat Sink

QTD (Quick Thermal Dispersion) technology assures the amplifier makes huge power while running very cool with nearly undetectable musical distortions.

Power Supply

Rugged MOSFET Pulse Width Modulation power supply. Allows amplifier to product efficient power without taxing the vehicle electrical system.

Output Connections

Nickel-plated brass connectionwith hex set screw terminals allow for secure connection and resist erosion.

Connection Type

Secure connection for all power, ground and speaker connections.

Full-Range RCA Outputs for Signal Pass Through

Daisy chain multiple amplifier to eliminate additional signal cables from the source unit.

LED System Protection Circuitry Diagnostics

Monitor overload and speaker short protection with illuminated indicators on the amplifier end panel.

Bass Remote Included

Wired Bass Remote allows adjustments to bass frequencies from the control which can be mounted anywhere in the vehicle.

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Crunch Power Zone Amplifiers (PZ) Quick Start Guide (Rev1)