Duecanali 804

The ability to implement any configuration with ease makes the Duecanali series extremely flexible. Powersoft’s legendary efficiency saves valuable energy, keeping both operational cost and ‘carbon footprint’ at a minimum.

The Duecanali 804 is designed to work with Lo-Z (from 2 Ω ) and with 70V/100V distributed lines: any mixed impedance output loads can be realized.

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Features:

Power supply

• Powersoft legendary 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 the 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, by 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
• Temperature forecast with LCD traced historical behavior.

General

• Fixed frequency switch-mode output stage for high-grade sound accuracy
• Compact size – all models only 1 RU for reduced rack cost and space
• Lightweight – for easier racking and shipping: 7 kg (15.4 lbs)
• Standard Phoenix connectors: analog audio outputs, aux supply, alarms and GPIO
• Remotely switchable double input (main and aux) 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

• NC/NO contacts per channel for alarm notifications
• Remote ON/OFF switch
• Remote VCA control per channel

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)

Specifications :

GENERAL
Output power per Channel
Output Power per Channel	500 W @ 2 Ω	400 W @ 4 Ω	400 W @ 8 Ω
Bridge mode		1000 W @ 4 Ω	800 W @ 8 Ω
Max output voltage / current
Max unclipped output voltage @8 Ω			80 Vpeak
Current			39 Apeak
AC MAIN POWER
Power supply	Universal, regulated switch mode with PFC (Power Factor Correction)
Nominal power requirement			100-240 V ±10%, 50-60 Hz
Operating voltage			60 V – 264 V
Power consumption/Current Draw
Idle		115 V: 25.6 W – 0.38 A	230 V: 24.7 W – 0.23 A
1/8 of max output power @ 4 Ω		115 V: 150 W – 1.4 A	230 V: 149 W – 0.92 A
THERMAL
Operating temperature range			0° – 45° C – 32° – 113° F
Thermal dissipation*
Idle		115 V: 87 BTU/h	230 V: 84 BTU/h
1/8 of max output power @ 4 Ω		115 V: 171 BTU/h	230 V: 168 BTU/h