Ground Zero GZCA 8000.M1 amplifier

Ground Zero GZCA 8000.M1 Amplifier

Each of the new Class D wideband amplifiers offers a huge amount of output power for any type of open show or SPL application. At the top end is the COMPETITION series, which includes one of the most powerful amplifiers in the world, delivering an incredible 35,000 W RMS!

Key features of the Ground Zero Competition series

Experiencing a real concert atmosphere or club feeling requires professional high SPL levels. However, this requires very special and powerful speakers as well as amplifiers. The GROUND ZERO development department makes no compromises when the purpose of the product is so clear. For this reason, the COMPETITION product line is the right choice for demanding customers with high SPL requirements.

Main features

SPL high-performance amplifier.
1-channel Class D amplifier.
Stable down to 1 Ω.
Variable active crossover and bass boost.
Full-range frequency response.
Adjustable low-pass and high-pass filters.
Adjustable input sensitivity.
Stabilized high voltage supply.
Thermal protection, short circuit protection, and overload protection.
Large connection terminals.
Solid heat sink with Ground Zero logo.
Specially qualified for SPL and SQL applications.
Includes remote bass level control.

About the brand

Ground Zero Audio is a world-renowned brand in the field of car audio, founded in Germany in 1995. Since its inception, it has built a strong position in the market thanks to cutting-edge technology, precision engineering, and an emphasis on sound quality. Ground Zero specializes in complete car audio solutions, from high-end car speakers and powerful subwoofers to amplifiers designed for either SPL or SQ. Ground Zero products are known for their durability, high performance, and faithful music reproduction, as confirmed by numerous awards from prestigious international competitions in the Sound Quality (SQ) and Sound Pressure Level (SPL) categories. The manufacturer uses state-of-the-art technology such as the KLIPPEL® measurement system and CEA 2006-A standards to ensure maximum accuracy and reliability of each component. With the slogan "Respect The Music", Ground Zero Audio emphasizes its philosophy - to offer listeners an authentic musical experience that faithfully captures the emotions of each song. If you are looking for a top-of-the-line solution, car speakers or subwoofers that excel not only in performance but also in build quality, Ground Zero Audio is the right choice for demanding customers around the world. Ahifi is the sole exclusive importer of the Ground Zero brand for the Czechia and Slovakia.

Catalog number	GZCA 8000.M1
Brand	Ground Zero
Links	Official web presentation
Energy class of the amplifierAmplifiers are divided into two basic classes: analog and digital . Analog amplifiers (A/B) have higher consumption requirements, but usually have a more natural sound. Digital amplifiers (D) have significantly lower consumption and higher efficiency, but the sound may not be as faithful as with classic analog amplifiers.	D
Number of amplifier channelsAmplifiers are divided into: - Monoblocks - 2-channel - 3-channel - 4-channel - 5-channel - 6-channel - multi-channel Each channel is used to power one speaker for the coaxial type, or one side if they are component speakers. Monoblock type amplifiers are mainly used for subwoofers. 2-channel are suitable for both subwoofers and, for example, the front pair of speakers in a car. 3-channel is used for front or rear speakers + subwoofer. 4-channel are used for front + rear speakers or 1 pair of speakers + subwoofer. 6 or 5-channel are used for 2 pairs of speakers + subwoofer, most often. Bridging means connecting the amplifier to a bridge, using the + pole from one channel and the - pole from the other channel. In most cases this is shown as "BRIDGED" on the amplifier.	1
RMS power into 4 ΩRMS power when loading speakers or subwoofer at 4 Ω. RMS power is the constant power of the amplifier and is one of the most important parameters when choosing an amplifier.	1 x 2400 W
RMS power into 2 ΩRMS power when loading speakers or subwoofer at 2 Ω. RMS power is the constant power of the amplifier and is one of the most important parameters when choosing an amplifier.	1 x 4500 W
RMS power into 1 ΩRMS power when the subwoofer is loaded at 1 Ω. RMS power is the constant power of the amplifier and is one of the most important parameters when choosing an amplifier. When connected to 1 Ω, significant heating of the amplifier may occur.	1 x 8100 W
Max. (maximum) power into 1 ΩPeak performance "Max." , which the amplifier can develop for a very short time. A relatively unimportant parameter. It is mainly a marketing move to attract customers to high numbers.	1 x 9600 W
Frequency rangeThe ability of the amplifier to reproduce the signal from the lowest frequency to the highest = faithfully reproduce the sound in a specific frequency band. Professionally: In the frequency range from 40 to 16,000 Hz, the vast majority of fundamental and overtones (harmonics) of all musical instruments are found. We are interested in the course of the radiated sound pressure in this range of frequencies when the loudspeaker system is supplied with constant power. We call this course the frequency characteristic, which tells us the level of radiated sound pressure in decibels (dB) depending on the frequency. The frequency characteristic of a speaker or speaker system can be expressed most succinctly with a graph. Mostly, however, the frequency characteristic is indicated by indicating the maximum tolerance of the sound pressure in the given frequency range, e.g. 50 to 15,000 Hz -+ 6 dB. Since the frequency characteristics of loudspeakers and systems in general are quite uneven, some manufacturers do not even specify this maximum tolerance of sound pressure in decibels in their catalogs for reasons of prestige. Data impoverished in this way is unfortunately worthless. What is valid is that the manufacturer offers a speaker system with a frequency range of 30 to 20,000 Hz, if he is worried about stating the maximum unevenness of the sound pressure in this range, because he can have a tolerance of, for example, +- 20 dB. The unevenness or undulation of the frequency curve in good speaker systems for high-quality music performance should not exceed +-3 dB in the 80 to 12,000 Hz band and +-6 dB in the 40 to 16,000 Hz band. Greater unevenness already depletes or emphasizes certain tonal areas, which can cause audible or even disturbing distortion. The proportion between fundamental tones and higher harmonics also changes, thereby changing the color of the sound, and individual musical instruments as well as the entire musical image sound unnatural.	10 - 200 Hz
Input sensitivityIn order for the amplifier to perform its function correctly, it requires an input signal of a certain level, which is different for car radios. It is measured in "Volts" (e.g. 2 V, 4 V, etc.) The higher the value at the output of the pre-amplifier, or car radio, the less demands are placed on the power of the amplifier. However, the amplifier must allow this input sensitivity, and for that reason this value is also given for the amplifier.	0.5 - 8 V
Dimensions of the amplifier	200 x 308/342 x 57 mm