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Product Code: GZTA 4125X-II
Availability: In Stock
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Ground Zero Titanium GZTA 4125X-II 4 Channel Amp 640W Max

Ground Zero is one of the most respected brands in car audio. Developed in Germany Ground Zero products are consistently placed in the winners circle and receive praise from reviewers across the globe. The Ground Zero Titanium GZTA 4125X-II is designed to offer high quality design and build quality at an affordable price point this 4-channel amplifier has a class A/B circuit, integrated active crossover and efficient, anodized heatsink. The Titanium range is highly flexible with many unique installation features for a fantastic audio upgrade.

Core Features:

  • 4-channel amplifier
  • Class AB technology
  • Variable active crossover and bass boost
  • Stabilized power supply
  • Covered terminals
  • Solid heatsink with Ground Zero lettering

Technical Specs


High quality class A/B amplifier



Output Power (@ 4Ω)

4x 90Watts RMS

Output Power (@ 2Ω)

4x 130 Watts RMS

max. Output Power

2x 320 Watts

Frequency Response

5 Hz – 38 kHz


● / ● / ●

Bass Boost / Phasenregelung

● / ○

High-Level Input / Auto-on

○ / ○

Remote Control


BIAS Setting




Dimensions (b x l x h)

230 x 396 x 53 mm

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