Powersoft Quattrocanali 1204 DSP

Quattrocanali 1204 DSP offers the traditional amazing sound quality and reliability of all Powersoft products. The patented SRM (Smart Rails Management) technology allows for maximising system efficiency and drastically reducing power consumption under any loading and usage conditions. Quattrocanali features the lowest thermal dissipation in the industry, thus reducing the need for external cooling devices. Quattrocanali is designed to operate with Lo-Z distributed lines (from 2 Ω) and 70V/100V or any combination of the two.

DSP versions of Quattrocanali provide deep control and monitoring through ArmoníaPlus, with sound adaptation and system management being achievable remotely from a decentralised location. This amplifier platform can also be relied upon in critical applications, such as fire alarm systems, due to the intelligently designed power supply that allows for reliable operation even when connected to a UPS. MyPowersoft services are available for this product. Usage in bars/restaurants, convention centres, places of worship, shops, small and medium-sized spaces, main, central or distributed systems, subwoofers, hi-Z/lo-Z, theatres, cruise ships, etc. 

Main features:

Power supply

• Patented output filter with wave cancellation network
• Low Inrush Limiting reduces AC inrush current, eliminating the need for costly power sequencers
• Detachable AC power cable with IEC C19/22.2 plug (16A for EU, 20 A for USA)

Fully protected circuit design with:

• DC protection: protects against infrasonic signal at outputs
• Thermal protection: operating temperature of output stages up to 80 °C (176 °F)
• Continuously variable speed fan, temperature-controlled, with airflow from front to back
• Temperature forecasting with historical behaviour tracked on LCD
• AC protection: shuts down the power supply when the AC mains voltage is out of operating range
• Clip Limiter: prevents severely clipped waveforms from reaching the speakers while maintaining peak output power
• VHF protection: protects speakers from strong, inaudible high-frequency signals
• Short circuit protection: protects the amplifier against short circuits or other stressful events for the output circuits, with automatic reset of the protection
• Long-term limiter: protects speakers from stable long-term RMS signals (non-audio) by reducing maximum output

General

• Fixed frequency output stage with switching mode for high-quality sound accuracy
• Compact dimensions - all models are only 1 RU for reduced rack costs and space
• Lightweight - for easier rack and transport: 7 kg (15.4 lbs)
• Standard Phoenix connectors: analog audio outputs, auxiliary power, alarms and GPIO
• Remote switchable dual input (main and auxiliary) for each channel

Settings

• Built-in clip limiters, which can be disabled, for each channel
• Digital control of gain attenuator
• Gain gate selection for each channel
• User-selectable gain/sensitivity
• User-selectable maximum output power for each channel
• User-selectable maximum AC current draw
• User-selectable access code for lockable configuration
• Built-in remote control via RS-485 interface offers complete diagnostics, operational setting and system monitoring.

Digital signal processing

• TI C6000 DSP platform
• AD/DA converter: dual Tandem® architecture of 24bit @ 48 kHz
• Independent input/output equalizers for each channel, offering PEQ filters, high cosine, rack IIR filters, as well as custom output FIR filters
• Delay of up to 100 ms for temporal alignment
• Active DampingControl™ for cable compensation
• Peak voltage limiters, RMS, RMS current, TruePower™.

Remote control and monitoring

• Via software: Control and diagnostic monitoring through ArmoniaPlus/dedicated web application
• Via hardware: Attenuation (from 0dB to 26dB)/ High pass filters (35Hz, 70Hz)/ Lo-Z/Hi-Z/70V/100V output selection/ Adjustable gain (from 26dB to 35 dB)