Amplifier

The results of three years of development, uncountable listening sessions, comparisons, tuning and testing led to the GZ ULTRA A-2, the most advanced analogue amplifier on the market uniting perfectly selected components reduced to the minimum of distractingly influencing aspects creating a masterpiece of an amplifier, matching our very own intention and everybody´s uncompromised expectations, worth to be called ultra-high-end.

Not a huge surprise but a great honour, the performance of the GZ ULTRA A-2 charmed the members of the EISA, a group of international car audio trade journalists, right from the very first listening sessions that much that there was any doubt about the decision to award this amplifier as

“BEST PRODUCT – IN-CAR HIGH-END COMPONENT”

The designation of the REFERENCE 2PURE and 4PURE amplifiers reveal the essential idea behind: Pure Sound Quality! By omitting strictly any kind of signal affecting filter, the result is a completely new and impressing high-end audio performance never heard before.
Only the best components ever have been considered good enough to find their way to the REFERENCE amplifier line-up.
Cooled by a high-quality copper-anodized aluminum heat sink, each model has been equipped with a slightly toned acrylic bottom allowing a glance on the selected components accurately arranged on the discreetly white illuminated and copper-plated double-layer pc board.
The PLUTONIUM series contains two sound quality amplifiers which simply leave no wish unfulfilled.
The 4-channel version has been awarded by the EISA organization as the world´s best in-car amplifier 2018/2019.
Massive class A/B multi-channel amplifiers and an impressively powerful and low-impedance stable class D mono version featuring dual high-current power supplies, enabling an excellent performance, can be selected from the NUCLEAR line.
The distinguished URANIUM amplifiers point out the main purpose by their designation already. Particular features like the unique BIAS setting increase the sound quality to the next level while highly accurate and variable wide band filters allow various combinations of full active speaker setups.
Especially for limited installation space, GROUND ZERO offers the HYDROGEN MINI full-range class D amplifiers. Meeting all requirements 2- and 4-channel models, a full-equipped 5-channel amplifier and last, not least, two powerful mono amplifiers in compact-sized, black-anodized aluminum heatsinks are available. Furthermore, the line includes a 4-channel and one mono amplifier for 24 V applications, as well.
The RADIOACTIVE series amplifiers offer an amazing high power output up to 6000 Watts in Link-Mode wrapped in a stylish titanium color heatsink containing a wide range of appropriate features for perfect audio adjustment. In a modern car environment, the installation space for an audio system could be very limited, as well. For this reason, the RADIOACTIVE line includes the smallest amplifiers GROUND ZERO ever built. The GZRA MICRO series amplifiers allow uncomplicated and space-saving installation and offer all necessary filters for the sound setup.
The products of the TITANIUM line combine premium quality and high efficiency. The amplifiers are equipped with sophisticated technology and encased by a posh heatsink with brushed titanium color surface. Especially for trucks, GROUND ZERO offers two models of the TITANIUM amplifier line-up as a 24-Volt version.
The range of amplifiers contains a variety of affordable models for the daily use and for SPL purpose. The feature list includes the most important functions like high-level input with auto turn-on or a remote control for the low impedance stable mono amplifiers.
Each of the new full-range class D amplifiers offers a huge amount of output power for any kind of open show or SPL application. At the top end, the COMPETITION line includes one of the most powerful amplifiers in the world – delivering the unbelievable power of 35.000 Watts RMS!

Competition Series

Realistic Stage Atmosphere

The experience of a real concert atmosphere or club feeling needs professional high SPL levels to be achieved.
This however, requires very special and powerful speakers as well as amplifiers. GROUND ZERO´s development department doesn´t make any compromise,
whenever the purpose of the product is that clear. Because of this, a COMPETITION product is the right choice for demanding customers with high SPL level expectations.

GZCA 3000X.M1

Mono Competition SPL Verstärker

GZCA 1500.M1

1-channel competition SPL amplifier

GZCA 1500.M2

1-channel competition SPL amplifier

GZCA 3000.M1

1-channel competition SPL amplifier

GZCA 3000.M2

1-channel competition SPL amplifier

GZCA 6000.M1

1-channel competition SPL amplifier

GZCA 3000.M1-24V

1-channel competition SPL amplifier

GZCA 8000.M1

1-channel competition SPL amplifier

GZCA 500.Q1

4-channel competition SPL amplifier

GZCA 300.Q1-24V

4-channel competition SPL amplifier

Hydrogen Series

High-Grade Technology

Products of the HYDROGEN series match with the demands of highly sophisticated customers.
Amazing performance, great sound quality and high SPL whenever required.
The subwoofers have been developed to handle a huge amount of input power reaching extremely high bass levels, to be used successfully even under competition conditions.
A matching 2-way component speaker system and a number of MINI amplifiers with compact dimensions for limited installation space complete this famous GROUND ZERO line-up.

GZHA MINI ONE

1-channel class D compact amplifier

GZHA MINI ONE-K

1-channel class D compact amplifier

GZHA MINI ONE-K 24V

1-channel class D compact amplifier for 24V use

GZHA MINI TWO

2-channel class D compact amplifier

GZHA MINI FOUR

4-channel class D compact amplifier

GZHA MINI FOUR 24V

4-channel class D compact amplifier for 24V use

GZHA MINI FIVE

5-channel class D compact amplifier

GZHA MINI FIVE-DSP

5-channel class D compact amplifier with DSP

Iridium Series

Top Performance @ Entry Level

Representing the entry level of GROUND ZERO, the IRIDIUM line offers a lot of useful features and an amazing performance. The range contains a variety of affordable amplifiers, speakers and subwoofers for the daily use and for SPL purpose.
These are available as single drivers for custom-built applications as well as in loaded passive and active enclosures.

GZIA 500.1

1-channel high quality class D amplifier

GZIA 1000.1

1-channel high quality class D amplifier

GZIA 1500.1

1-channel high quality class D amplifier

GZIA 100.2

2-channel high quality class A/B amplifier

GZIA 200.2

2-channel high quality class A/B amplifier

GZIA 135.4

4-channel high quality class A/B amplifier

Plutonium Series

High-End Experience

The products of the PLUTONIUM line are suitable for either ultimate SPL level or high-end sound quality. To achieve one of these targets, exceptional materials and technologies are applied during the development.
The technical, electrical and mechanical skills of the resulting products convince not only during worldwide SPL competitions but also High End enthusiasts with outstanding audio reproduction ability.
Starting from the market release, the subwoofers have set benchmarks in all SPL competitions around the world and have been awarded for best performance by numerous test magazines.

GZPA 2SQ

2-channel high performance SQ amplifier

GZPA 4SQ

4-channel high performance SQ amplifier

Radioactive Series

Advanced Dynamics

The RADIOACTIVE line offers a wide range of exceptional high efficient speakers and subwoofers for daily and SPL use. During the development GROUND ZERO focused especially on natural and dynamical audio reproduction of digitally compressed music.
Apart from some powerful amplifiers, the line contains extremely small amplifiers for limited space environments.

GZRA 2HD

2-channel high-performance class D amplifier

GZRA 4HD

4-channel high-performance class D amplifier

Reference Series

Pure High-End Sound Quality

The EISA awarded REFERENCE components obtain the highest attention and care during a long lasting development.
Without any compromise, each component is selected from the best ones available on the market.
Highest production quality and the most accurate supervision of every single part ensure not less than perfect performance, ultimate sound quality and workmanship for the highest demanding customer.
Emphasizing the high-end status of the REFERENCE products, each amplifier, speaker and subwoofer is finally certified by GROUND ZERO´s in-house quality department and delivered in a classy, logo-branded wooden box handmade in Germany.

GZPA Reference 2PURE

2-channel high end SQ amplifier

GZPA Reference 4PURE-SQ

4-channel high end SQ amplifier

Titanium Series

Premium Quality

The products of the TITANIUM line combine premium quality and high efficiency.
A wide range of dedicated speakers meet most of the customer´s need.
The amplifiers are equipped with sophisticated technology and encased by a posh heatsink with brushed titanium color surface.
Especially for trucks, GROUND ZERO offers two models of the TITANIUM amplifier line-up as a 24-Volt version.

GZTA 2255X-B

2-channel high power class A/B amplifier

GZTA 4125X-B

4-channel high quality class A/B amplifier

GZTA 4230X-B

4-channel high quality class A/B amplifier

Uranium Series

Amazing Sound Quality

Each product of the URANIUM line-up has been developed carefully to fulfill the demands of music enthusiasts with high audiophile expectations at a reasonable price level.
Applying all of Ground Zero´s sound quality competition experience while tuning the product details carefully, results in emotional and amazing audio reproduction.
The distinguished amplifiers point out the main purpose by their designation: SQ beyond the average!

GZUA 2SQ

High-performance 2-channel SQ amplifier

GZUA 4SQ

High-performance 4-channel SQ amplifier

GZUA 6SQ

High-performance 6-channel SQ amplifier

Ultra Series

REFERENCE ULTRA SERIES – Ultra-High-End

After collecting detailed experience in SQ performance and general in-car audio reproduction for more than 25 years during the development of loudspeakers, subwoofers and amplifiers for highly demanding customers and having launched a wide range of car audio products used for sound quality competitions all over the world, GROUND ZERO had started to take advantage of all these gathered skills devising a very new and super high-end product line. For the most sophisticated demands, GROUND ZERO introduces an extraordinary two-channel amplifier and matching loudspeakers now! REFERENCE ULTRA series products are developed by highly attentive engineers from England, Sweden and Germany creating products for the most demanding customers without accepting any compromise in overall quality and SQ performance.

GZ ULTRA A-2

<p>Ultra-high-end analogue 2-channel amplifier</p>

Accessories Series

This category includes some optionally available products to be used additionally at the installation of loudspeakers.

GZTA BASSREMOTE

Optional bass remote control

GZ SUB-AMP 300

Compact amplifier module

Car Specific Series

CAR SPECIFIC Upgrade for the OEM sound system

Most OEM speaker systems cannot completely satisfy the expectations of sophisticated customers. Especially the basic equipment leaves a lot of space for improvements of dynamics and sound quality.
Installing car specific aftermarket speakers is a simple way to enhance the audio system.
GROUND ZERO´s line of CAR SPECIFIC solutions consists of various components designed for upgrading the OEM audio systems of modern cars easily.

GZCS A-1.650D

1-channel high-performance class D amplifier

GZCS A-4.80

4-channel micro amplifier

GZCS DSPA-4.60ISO

4-channel amplifier with 8-channel DSP and ISO harness

GZDSP 4.80A-PRO

4-channel amplifier with 8-channel DSP

GZHA MINI FIVE-DSP

5-channel class D compact amplifier with DSP

DSP Amplifier Series

GZHA MINI FIVE-DSP

5-channel class D compact amplifier with DSP

DSP Series

GZDSP 4.80A-PRO

4-channel amplifier with 8-channel DSP

GZHA MINI FIVE-DSP

5-channel class D compact amplifier with DSP