3. Bestseller Amplifier
  5. GZPA Reference 4PURE-SQ

GZPA Reference 4PURE-SQ

425 Watt

GZPA Reference 4PURE-SQ

Technical Highlights

  • Power: 4 x 150 WRMS @ 4 Ohm, 4 x 270 WRMS @ 2 Ohm.
  • Impedance: 4 x 425 WRMS @ 1 Ohm, Frequency response: 5 Hz – 38 kHz.
  • Exclusive components, rhodium-plated RCA, Plexiglas base.
  • More technical details
€3,989.05
-5% €4,199.00 €3,989.05
2% discount with credit card

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ProductGZPA Reference 4PURE-SQ

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1 year extra warranty

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datasheet
Ground Zero GZPA Reference 4PURE-SQ copper car amplifier with Class AB technology and labeled controls, shown angled on a white background.
€3,989.05
€4,199.00 €3,989.05

The Ground Zero GZPA Reference 4PURE-SQ is a 4-Channel Amplifier in Class AB design with a symmetrical structure. The direct signal path, variable BIAS adjustment, and newly designed preamplifier section are integrated. The signal-to-noise ratio is optimized. It features exclusive components of the highest quality, rhodium-plated RCA connectors, and an exclusive heat sink with an engraved Ground Zero logo. A Plexiglas base with LED lighting is included. High-end execution.

Features
  • 4-Channel Amplifier
  • Class AB technology
  • Symmetrical structure
  • Direct signal path
  • Variable BIAS adjustment
  • Newly designed preamplifier section
  • Optimized signal-to-noise ratio
  • Exclusive components of the highest quality
  • Rhodium-plated RCA connectors
  • Exclusive heat sink with engraved Ground Zero logo
  • Plexiglas base with LED lighting
  • PURE high-end SQ execution
Technical Data
  • Power at 4 Ohms: 4 x 150 W RMS
  • Power at 2 Ohms: 4 x 270 W RMS
  • Power at 1 Ohm: 4 x 425 W RMS
  • Frequency response: 5 Hz – 38 kHz
  • Dimensions (W x L x H): 236 x 590 x 67.5 mm

Frequently Asked Questions about GZPA Reference 4PURE-SQ

What power does the Ground Zero GZPA Reference 4PURE-SQ Amplifier provide at different impedances?

The Ground Zero GZPA Reference 4PURE-SQ 4-Channel Amplifier delivers impressive power at various impedances. At an impedance of 4 Ohms, it offers 4 x 150 WRMS. If you lower the impedance to 2 Ohms, the power increases to 4 x 270 WRMS. At just 1 Ohm, the amplifier even delivers 4 x 425 WRMS, making it an excellent choice for applications that require high power. This capability ensures that your sound system provides powerful and clear audio output without compromising sound quality.

What technologies are integrated into the GZPA Reference 4PURE-SQ to enhance sound quality?

The Ground Zero GZPA Reference 4PURE-SQ Amplifier integrates a variety of advanced technologies to improve sound quality. It utilizes Class AB technology, known for its clear and robust sound. The symmetrical design of the device ensures that the audio signal is transmitted as unaltered as possible. Additionally, an extended BIAS control range allows for flexible adjustment of the sound input. The direct signal path minimizes signal loss, and the integration of exclusive high-quality components guarantees outstanding acoustic performance. This combination of technologies highlights the high-end level of the amplifier.

How do rhodium-plated RCA jacks affect the sound quality of the GZPA Reference 4PURE-SQ?

The rhodium-plated RCA jacks of the Ground Zero GZPA Reference 4PURE-SQ Amplifier offer significant advantages for sound quality. Rhodium is a precious metal that possesses extremely high conductivity while being very resistant to corrosion. These properties lead to excellent signal transmission that preserves critical sound details. The use of such high-quality jacks minimizes signal loss at connection points and prevents interference, contributing to a more precise and clearer sound image. For audiophiles, such technical details are crucial for the highest sound quality.

What features does the heatsink in the GZPA Reference 4PURE-SQ offer?

The exclusive heatsink of the GZPA Reference 4PURE-SQ is specially designed to efficiently manage heat dissipation, thereby optimally protecting the electronics. Engraved with the Ground Zero logo, the heatsink offers not only a functional but also an aesthetic dimension. This sophisticated cooling mechanism ensures that the amplifier maintains a stable temperature under all operating conditions, which guarantees the longevity and reliability of the internal components. Especially during intense use, effective cooling is essential to keep performance consistently at the highest level.

What signal processing capabilities does the GZPA Reference 4PURE-SQ have through its preamplifier section?

The Ground Zero GZPA Reference 4PURE-SQ features a newly designed preamplifier section that provides essential signal processing capabilities. This section is designed to handle the input signal precisely and ensure enhanced sound quality across the entire frequency range from 5 Hz to 38 kHz. The special design improves the signal-to-noise ratio, increasing clarity even with subtle sounds and minimizing distortion. This technical finesse allows the amplifier to accurately reproduce even the finest audio details, making it the top choice for audio enthusiasts.

What are the dimensions of the GZPA Reference 4PURE-SQ and how is installation feasible?

The GZPA Reference 4PURE-SQ amplifier from Ground Zero measures 236 mm in width, 590 mm in length, and 67.5 mm in height. These dimensions must be considered during installation in the vehicle to ensure that there is enough space. The flat design allows for flexible mounting, often in the trunk or under the seats. When installing, it is important to ensure ventilation to avoid impairing the efficiency of the heatsink. These dimensions provide the opportunity to integrate the amplifier into many vehicle types without compromising functionality.

How does the variable BIAS setting of the GZPA Reference 4PURE-SQ affect the sound characteristics?

The variable BIAS setting in the GZPA Reference 4PURE-SQ is a powerful feature that can significantly influence the sound characteristics. By adjusting the BIAS, the neutrality of the sound can be modified, meaning you gain more control over the tonal balance and warmth of the music. This customization option is particularly valuable for audiophiles who prefer a specific sound profile. Depending on the chosen BIAS setting, the amplifier can exhibit more softness or pronounced dynamics, allowing for a personalized listening experience.

What advantage does the Plexiglass base of the GZPA Reference 4PURE-SQ with LED lighting offer?

The Plexiglass base of the GZPA Reference 4PURE-SQ amplifier from Ground Zero, combined with the LED lighting, not only provides a visually appealing design but also functional benefits. The lighting subtly highlights the internal components and allows for a quick check of hardware and connections. Especially in installations where the amplifier is visibly mounted, this thoughtful design aspect adds aesthetic value. For enthusiasts who value both appearance and function, this amplifier is therefore an impressive element in the sound system.

What frequency range does the GZPA Reference 4PURE-SQ cover?

The GZPA Reference 4PURE-SQ amplifier from Ground Zero offers a remarkably wide frequency range from 5 Hz to 38 kHz. This vast bandwidth ensures that the amplifier reproduces deep bass as powerfully as it does highs, while also being capable of accurately representing fine, subtle sound nuances in the midrange. This characteristic makes the amplifier ideal for audiophile applications where detail accuracy and sound transparency are paramount. Such comprehensive frequency reproduction allows you to enjoy nearly every music track in its full glory.

Why is the symmetrical design of the GZPA Reference 4PURE-SQ important for sound quality?

The symmetrical design of the GZPA Reference 4PURE-SQ amplifier plays a crucial role in optimizing sound quality. Symmetry in design minimizes electromagnetic interference and ensures that all components work harmoniously together. This way, the signal is influenced as little as possible, guaranteeing an authentic and clear sound transmission. Particularly in high-end audio applications, this technical design is significant, as even the smallest interferences can greatly affect the audible sound. Thus, the symmetrical design is a key element for uncompromising audio quality.

Manufacturer information/responsible person

Ground Zero GmbH
Erlenweg 25
85658 Egmating, Germany

Tel +49 (0)8095 873 830

E-Mail: info@ground-zero-audio.com

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