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Studiomaster HX4-1800 4x 765W at 4 Ohms High Performance 1U Digital Power Amplifier

SKU: STHX41800 MFR: HX4-1800
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Key Features

  • Experience high power output with this Studiomaster power amplifier, perfect for live sound.
  • Enjoy reliable performance with overload and thermal protection for worry-free operation.
  • This compact size, 1U digital power amplifier delivers impressive wattage in a small rack space.
  • Versatile input/output options make this amplifier ideal for various PA and live sound setups.
  • Achieve low distortion for crystal-clear audio, ensuring professional sound quality every time.
  • Durable build quality ensures this power amplifier stands up to the rigors of touring and events.
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Special Order?Estimated to Ship: 08/12/2025
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Studiomaster HX4 Specifications

  • Slope (1kHz, Bypass LPF)

    50V/us

  • Input Sensitivity 1kHz

    1Vrms

  • THD+N

    0.02% (10% rated output power)

  • IMD-SMPTE

    0.05% (10% rated output power)

  • DIM30

    0.05% (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

    300 (8ohm, 20Hz - 100Hz)

  • S/N ratio

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

  • Power supply

    90-260VAC, 50/60Hz

  • Protection

    Overoad/thermal/DC output protection

  • Wattage

    8ohms Stereo: 4x450 watts
    4ohms Stereo: 4x765 watts
    2ohms Stereo: 4x1300 watts

    16ohm Bridged: 2x900 watts
    8ohm Bridged: 2x1530 watts
    4ohm Bridged: 2x2600 watts

  • Dimensions (W x H x D)

    19 x 1.7 x 12.7" (483 x 44 x 323mm)

  • Weight

    12.5 lbs (5.7kg)

  • UPC Code

    5060255344200

About Studiomaster HX4

From the renowned brand StudioMaster, the HX4-1800 4x 765W at 4 Ohms High Performance 1U Digital Power Amplifier is a state-of-the-art, professional-grade audio equipment designed for superior sound quality and high power output. This high-performance digital power amplifier is part of the HX series, known for their ultra-lightweight and compact design without compromising on performance.

The HX4-1800 model boasts comprehensive protection and status indicators, ensuring reliability and ease of use. It comes in both 2 and 4 channel variants, offering a versatile range of power from 2 x 225 watts at 4 ohms up to an impressive 4 x 765 watts. This powerful output makes it an ideal choice for professional musicians, DJs, and large venue applications, delivering high-quality sound reproduction that meets professional standards.

One of the standout features of this digital power amplifier is its 1U size, making it a compact yet powerful addition to any professional audio setup. It also features power factor correction (PFC) and a universal power supply that operates between 90-250VAC, demonstrating its adaptability and efficiency.

Furthermore, the HX4-1800 is designed to perform at loads down to 2 ohms, showcasing its robustness and high performance under demanding conditions. With its combination of power, performance, and compact size, the HX4-1800 4x 765W at 4 Ohms High Performance 1U Digital Power Amplifier is a testament to StudioMaster's commitment to delivering high-quality, reliable, and professional audio equipment.

Studiomaster HX4 Features

  • Energy saving design with high efficiency
  • Power factor correction (PFC)
  • Universal 90-250V power supply
  • 4-channel model
  • Reliable efficient operation down to 2ohm loads
  • Variable speed fan cooling
  • Status and protection indicators
  • Stereo/parallel/bridge modes
  • Multiple gain modes
  • Output limiter
  • Balanced XLR inputs
  • Professional speaker connectors
  • Thermal, overload, DC protection
  • Thermal, fault and limiter indicators

Product Documents

User Manual

Key Features

  • Experience high power output with this Studiomaster power amplifier, perfect for live sound.
  • Enjoy reliable performance with overload and thermal protection for worry-free operation.
  • This compact size, 1U digital power amplifier delivers impressive wattage in a small rack space.
  • Versatile input/output options make this amplifier ideal for various PA and live sound setups.
  • Achieve low distortion for crystal-clear audio, ensuring professional sound quality every time.
  • Durable build quality ensures this power amplifier stands up to the rigors of touring and events.

What's in the box:

  • HX4-1800 4x 765W at 4 Ohms High Performance 1U Digital Power Amplifier
  • Studiomaster 1 Year Limited Warranty