Powersoft – D804

The brand new Duecanali Series shines with outstandingly low power consumption and heat dissipation, with direct positive effects on investment. It is aimed at larger two-channel install applications and it is able to provide more than 16 different possible output configurations including Lo-Z, Hi-Z, bridge mode, and parallel mode.

Power supply

• Universal switch mode power supply up to 400V_AC 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)