M20D(已停产)
Overview

Like all M Series models, the M20D is an outstanding value in any smaller to medium sized sound system where an efficient, compact and good sounding amplifier is expected to work reliably over a long period. Since 2Ω-capability is usually not needed in smaller systems, the M20D is properly dimensioned with its 4Ω optimization.

In use worldwide by leading touring and event sound companies, Powersoft amplifiers are preferred among the top ranking system designers, sound engineers, and contractors for providing reliable premier-grade power and headroom in the smallest possible package size.

Alternatively, the M20D can drive constant voltage 70V lines directly where multiple loudspeakers are required.

Maximum efficiency warrants minimum current draw, heat dissipation and power consumption, resulting in "green" products, saving the user a substantial amount of money over time.

Specification
  • Power supply
    Advanced switch-mode power supply technology for high performance and compact size
    Fixed frequency switch mode output
    Patented output filter with ripple cancellation network

  • Protections
    Fully protected circuit design with:

    Ac protection: shut down power supply when AC mains voltage is outside operating range
    Clip limiter: prevents severely clipped waveforms from reaching loudspeakers, while still maintaining full peak power output
    DC protection: protects against infrasonic signal at the outputs
    VHF protections: protects the loudspeakers against non audible, strong, non musical high frequency signals
    Short circuit protection: protects the amplifier from short circuit or other stressful events for the output circuits with automatic protection reset
    Long term limiter: protects the loudspeaker against steady long term rms (non audio) signals reducing maximum output
    Thermal protection: output stages operating temperature up to 75 °C (167 °F)
    Temperature controlled continous variable speed fan, front to back airflow

  • General
    Direct drive constant voltage, 70V Hi-Z distributed lines**
    Compact size - all models only 1 RU for reduced rack cost and space
    Light weight - all models only 7.4 kg (16 pounds) for easier racking and shipping
    Neutrik XLR balanced inputs with loop thru XLR and Speakon outputs connectors
    Recessed stepped attenuators
    Modular construction
    Full four years warranty

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