Hifonics ZG-3200.1D Zeus Gamma Class D Monoblock Amplifier

The Hifonics ZG-3200.1D Zeus Gamma is a one-channel Class D car audio amplifier built to power a dedicated subwoofer system. It provides a compact amplification option for vehicles where bass output and efficient use of installation space are priorities. Its monoblock layout keeps the signal path focused on low-frequency reproduction.

This amplifier is intended for enthusiasts adding a subwoofer to an aftermarket or factory audio system. High-level speaker inputs support integration when a source unit does not provide RCA outputs, while RCA inputs accommodate aftermarket head units. A low-noise preamplifier circuit is designed to accept low-voltage source signals with minimal added distortion.

Published output ratings are 1 x 1,600 watts at 2 ohms and 1 x 800 watts at 4 ohms, with a 3,200-watt maximum rating at 1 ohm. The 10 Hz to 500 Hz frequency response and adjustable low-pass crossover suit subwoofer-duty applications. Variable phase, bass boost, and subsonic controls provide useful tuning flexibility for different vehicles and enclosures.

The Zeus Gamma platform uses a Class D topology, PWM MOSFET power supply, and Hifonics Simpatico Coil Design. These engineering elements are intended to provide efficient power delivery in a relatively compact chassis. An aluminum Hifonics heat sink helps dissipate heat during normal operation.

The ZG-3200.1D can serve as the bass amplifier in a larger multi-amplifier system. RCA outputs allow signal pass-through for daisy-chaining another amplifier, and the included wired bass remote can be mounted within reach of the driver. Illuminated protection diagnostics help identify overload or speaker-short conditions during setup and use.

Key Features

• Monoblock Class D Design: Delivers dedicated low-frequency amplification in an efficient one-channel layout.
• Published 2-Ohm Output: Provides 1 x 1,600 watts at a 2-ohm load.
• Variable Low-Pass Filter: Adjusts from 40 Hz to 300 Hz for subwoofer integration.
• Subsonic Filter: Adjusts from 10 Hz to 40 Hz for low-frequency system tuning.
• High-Level Inputs: Supports connection to systems without RCA preamp outputs.
• Wired Bass Remote: Lets the driver adjust bass level from the cabin.

Design & Installation

The amplifier uses an aluminum Hifonics heat sink, molded connection terminals, and nickel-plated RCA connections. Its RCA connectors are specified as high-temperature and impact-resistant, while hex screw terminals help secure connections. LED indicators on the end panel provide power and protection status information.

Mount the amplifier on a secure surface with adequate ventilation and use appropriate power, ground, signal, remote-turn-on, and speaker wiring. The installation guide specifies 4 AWG power cable and an external 150A fuse for this model; the power cable should be fused close to the battery. Match the connected subwoofer load and tune gain, crossover, bass boost, subsonic filter, and phase controls carefully before extended listening.