GLABS Z4.28 AMPLIFIER

Description

• The GLABS Z4.28 delivers exceptional multi-channel power with 4 x 3000W RMS @ 8Ω, 4 x 4800W RMS @ 4Ω, and 4 x 7200W RMS @ 2Ω, making it ideal for large-scale professional sound reinforcement and multi-zone audio systems.
  
• Bridge mode output offers flexible, massive power options: 2 x 6000W @ 16Ω, 2 x 9900W @ 8Ω, and 2 x 12600W @ 4Ω, providing the ability to drive high-demand subwoofers and speaker arrays with authority.
  
• Provides a wide, accurate frequency response of 10Hz to 20kHz ±0.35dB, ensuring crisp and clear sound reproduction across the full audible spectrum.
  
• Maintains low distortion with THD+N < 0.5% @ 801kHz, preserving high audio fidelity at elevated volume levels.
  
• High signal-to-noise ratio of >102dB and excellent channel separation with crosstalk >70dB at 1kHz deliver clean, noise-free sound.
  
• Fast transient response with a slew rate greater than 30 V/μs and a strong damping factor of >3000 (8Ω) between 20Hz and 100Hz provide precise speaker control and accurate bass response.
  
• Features a voltage gain of 47.5dB (0.775V input to 155V output), with selectable input sensitivities at 0.775V, 1V, 1.4V, and 2V for compatibility with various professional audio sources.
  
• Equipped with balanced XLR inputs (pin 1 ground, pin 2 positive, pin 3 negative) and an input impedance of 10KΩ balanced / 20KΩ unbalanced, ensuring reliable and noise-resistant signal transmission.
  
• Outputs use 4 Neutrik NL4 speaker connectors for robust and secure speaker connection.
  
• Comprehensive protection includes safeguards against short circuits, DC faults, overloads, overheating, ultrasonic noise, RF interference and voltage peak limiting, ensuring reliability in demanding environments.
  
• Operates on a wide voltage range from AC 110V to 260V at 50Hz–60Hz, with two F-25A fuses for enhanced power protection.
  
• Efficient Class D circuitry delivers high power with reduced heat dissipation, packaged in a slim 1U rack-mount chassis measuring 500mm × 483mm × 45mm.
  
• Weighs 13 kg net (15.5 kg gross), balancing power, compactness and portability for professional touring and installation.