DUECANALI 804 DSP
Overview

Compact and light weight, it can be used as an addition to existing systems to enhance audio reproduction in small to medium sized areas. As a standalone unit, the Duecanali 804 amplifier platform shines with outstandingly low power consumption and thermal dissipation.

Specification
  • Power supply
    Universal switch mode power supply up to 400VAC tolerant with Power Factor Correction
    Patented output filter with ripple cancellation network
    Low Inrush Limiting reduces AC inrush current, removing the need for expensive power sequencers
    Detachable AC mains cable with IEC C19/22.2 (16A for EU, 20 A for USA) socket

  • 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
    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 80 °C (176 °F)
    Temperature controlled continuous variable speed fan, front to back airflow

  • General
    Fixed frequency switchmode output stage for high-grade sound accuracy
    Compact 1 RU for reduced rack cost and space
    Lightweight - for easier racking and shipping: 7 kg (15.4 lbs)
    Standard Phoenix connectors: analog and digital input, audio outputs, alarms and GPIO
    Remotely dimmable inputs per channel

  • Loudspeaker system configuration
    Direct drive either low impedance loads or 70V / 100V Hi-Z distributed lines
    Switchable 35Hz / 70Hz high pass filter per channel
    Mixed configuration with Lo-Z/Hi-Z systems possible
    Bridged mode low impedance per channel pair

  • Alarms and GPI/O
    General Purpose Input/Output alarm interfaces:

    dangerous DC in the output power signal
    thermal stress
    Configurable alarm contact NC/NO per channel
    Remote ON/OFF switch

  • Remote Control & Monitoring
    Via Software:

    Attenuation (from 0 dB to 26 dB)
    Max output voltage
    Output and gain reduction metering
    Diagnostics (temperature, fans, …)
    Via Hardware:
    Attenuation (from 0 dB to 26 dB)
    High Pass Filter (35 Hz, 70 Hz)
    LoZ/HiZ/70V/100V output selection
    Gain (from 26 dB to 35 dB) 

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