
The GZCS A-4.80 is a small, smart power amplifier that can be used universally. Together with a cable set suitable for the vehicle and the corresponding loudspeakers, it makes a great plug & play retrofit kit.
The Ground Zero GZHA MINI FOUR is a highly compact 4-channel car amplifier featuring efficient Class-D technology. With an output power of 4x 80 watts RMS at 4 ohms and 4x 130 watts RMS at 2 ohms, this amplifier provides sufficient power to optimize speaker performance. For increased power output, the amplifier can operate in bridge mode, achieving up to 2x 320 watts RMS at 4 ohms. Variable filters and bass boost ensure optimal sound quality through adjustable active crossovers and broadband filters. The configurable high-pass filter (10-500 Hz) and low-pass filter (40-4000 Hz) offer complete control over the frequency response, while the bandpass filter allows for balanced audio mixing. An adjustable bass boost function adds extra punch to low frequencies. Constructed with a robust black anodized aluminum heat sink, the GZHA MINI FOUR combines durability with elegant design. Large connections enable secure and stable links, while the compact dimensions of 13.5 x 5.2 x 21 cm allow for easy installation in tight spaces. The high-level input with auto-on function simplifies installation by allowing direct connection to most audio systems, including factory radios without RCA outputs, eliminating the need for additional converters. This amplifier is ideal for vehicles with limited space, offering reliable performance and advanced audio control features. The package includes a Ground Zero GZHA MINI FOUR amplifier, a multilingual user manual, and a mounting kit with screws and rings.
Car HiFi Amplifier Features | Bridgeable, High-pass filters, Low pass filter adjustable |
RMS output power 4 Ohm | 4 x 80 W |
Item number | 35759263 |
Manufacturer | Ground Zero |
Category | Car hi-fi amplifiers |
Manufacturer no. | mini-four |
Release date | 22.5.2023 |
Sales rank in Category Car hi-fi amplifiers | 13 of 130 |
amplifier type | 4-channel amplifier |
Car HiFi Amplifier Features | Bridgeable, High-pass filters, Low pass filter adjustable |
RMS output power 4 Ohm | 4 x 80 W |
CO₂ emissions | 18.76 kg |
Climate contribution | CHF 0.45 |
Scope of delivery | Manual, Mounting kit with screws and rings |
Depth | 210 mm |
Width | 135 mm |
Height | 52 mm |
Length | 37.10 cm |
Width | 16.70 cm |
Height | 8.60 cm |
Weight | 2.16 kg |

The GZCS A-4.80 is a small, smart power amplifier that can be used universally. Together with a cable set suitable for the vehicle and the corresponding loudspeakers, it makes a great plug & play retrofit kit.