Amplificateur 2 canaux installation fixe
3000W / 2 ohms
Powersoft universal switch mode power supply up to 400VAC tolerant
External controls features
Fully protected circuit design
The Duecanali 4804 amplifier platform is ideal for medium to large-sized installations that require high power outputs to drive subs and multiple speakers. It offers Powersoft’s renowned reliability and power density in a light, compact unit.
Power supply
- 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
- 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 80 °C (176 °F)
- Temperature controlled continous variable speed fan, front to back airflow
- Temperature forecast with LCD traced historical behaviour
General
- Fixed frequency switchmode output stage for high grade sound accuracy
- Compact size – all models only 1 RU for reduced rack cost and space
- Light weight – 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)