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Studiomaster QX2-4000 2x 3400W at 4 Ohms High Performance 1U Digital Power Amplifier

SKU: STQX24000 MFR: QX2-4000
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Key Features

  • Experience powerful, clear audio with this Studiomaster power amplifier's high power output.
  • Achieve pristine sound quality; this amplifier boasts a low THD for minimal distortion.
  • Enjoy a clean audio signal with a high signal-to-noise ratio, reducing unwanted noise.
  • Versatile input impedance ensures compatibility with various audio sources and setups.
  • Benefit from exceptional speaker control with a high damping factor for tight bass response.
  • This robust power amplifier delivers reliable performance for live sound and studio applications.
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Special Order?Estimated to Ship: 08/15/2025
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Studiomaster QX2 Specifications

  • Slope (1kHz, Bypass LPF)

    50V/us

  • Input Sensitivity 1kHz

    Option: 41dB, 38dB, 35dB, 32dB

  • THD+N

    0.01% (10% rated output power)

  • IMD-SMPTE

    0.01% (10% rated output power)

  • DIM30

    0.01% (10% rated output power)

  • Crosstalk rejection

    >80Db (less than rated power, 20Hz - 1kHz)

  • Frequency Response

    0.2dB (10% rated output power, 8ohm, 20Hz - 20kHz)

  • Input Impedance

    20k ohm (bal), 10k ohm (unbal)

  • Damping Factor

    5000 (8ohm, 20Hz - 200Hz)

  • S/N ratio

    >105-112dB (A weighted, 20Hz-20kHz)

  • Power supply

    90-260VAC, 50/60Hz

  • Protection

    low voltage/overoad/thermal/DC output protection

  • Wattage

    8ohms Stereo: 2x2000 watts
    4ohms Stereo: 2x3400 watts
    2ohms Stereo: 2x4760 watts

    16ohm Bridged: 4000 watts
    8ohm Bridged: 6800 watts
    4ohm Bridged: 9520 watts

  • Dimensions (W x H x D)

    19 x 1.7 x 18" (483 x 44 x 462mm)

  • Weight

    22-26.4 lbs (10-12kg)

  • UPC Code

    5060255344224

About Studiomaster QX2

It is with great precision that the QX2-4000 2x 3400W at 4 Ohms High Performance 1U Digital Power Amplifier delivers an exceptional audio amplification experience. Engineered for high-performance and professional audio environments, this powerful amplifier boasts an impressive 2000 watts per channel at 8 ohms, making it an ideal choice for large venues and demanding audio applications.

Crafted by the renowned StudioMaster, a brand synonymous with high-quality sound, the QX2-4000 ensures a reliable and durable solution for amplifying audio signals. Its advanced amplifier adjustment technology is meticulously designed to achieve over 95% efficiency, ensuring stable performance even under high current, low impedance conditions.

The amplifier is equipped with active power factor correction (PFC) and an ultra-reliable soft power switching power supply, which operates universally between 90-250VAC, providing versatility and ease of use across various setups. The sleek 1U height design is not only space-efficient but also lightweight, tipping the scales at less than 12kg, which enhances its portability without compromising on power.

Available in both 2 and 4 channel versions, the QX series offers a range of power ratings, catering to diverse audio requirements. With the QX2-4000, you can expect power ratings from 2550 watts per channel up to 5100 watts per channel at 4 ohms, accommodating even the most power-hungry speakers and ensuring crisp, clear, and well-balanced sound.

Whether for live sound reinforcement, recording studios, or professional sound systems, the QX2-4000 2x 3400W at 4 Ohms High Performance 1U Digital Power Amplifier stands out as a robust and high-fidelity choice for audio professionals seeking a powerful, professional-grade amplification solution.

Studiomaster QX2 Features

  • Energy saving with over 95% efficiency
  • Power factor correction (PFC)
  • Universal 90-250V power supply
  • 2-channel model
  • Reliable efficient operation down to 2ohm loads
  • Variable speed fan cooling
  • Internally modular design for quick maintenance
  • Stereo/parallel/bridge modes
  • Multiple gain modes
  • Output limiter
  • Balanced XLR inputs
  • 32A mains power input socket
  • Thermal, overload, DC protection
  • Thermal, fault and limiter indicators

Product Documents

User Manual

Key Features

  • Experience powerful, clear audio with this Studiomaster power amplifier's high power output.
  • Achieve pristine sound quality; this amplifier boasts a low THD for minimal distortion.
  • Enjoy a clean audio signal with a high signal-to-noise ratio, reducing unwanted noise.
  • Versatile input impedance ensures compatibility with various audio sources and setups.
  • Benefit from exceptional speaker control with a high damping factor for tight bass response.
  • This robust power amplifier delivers reliable performance for live sound and studio applications.

What's in the box:

  • QX2-4000 2x 3400W at 4 Ohms High Performance 1U Digital Power Amplifier
  • Studiomaster 1 Year Limited Warranty