Powersoft Duecanali Legacy 3904

The Powersoft Duecanali Legacy 3904 is a professional power amplifier. Designed to meet the most stringent requirements of professional users in professional fixed installations. Exclusively built in Italy with internal components selected for premium quality and proven durability.

The Duecanali 3904 incorporates the legendary patented Powersoft universal switching mode power supply up to 400VAC tolerant with Power Factor Correction. Providing users with worldwide AC acceptance and low consumption. Powersoft bridgeable switch mode fixed frequency class D patented outputs provide high quality sound. Additionally, excellent damping factor and cooler circuits for stable performances over time and longer amplifier life.

LCD display with lockable user menu for easy control of all amplifier settings. Auxiliary inputs, triggered by 24V command input for alarm and pre-recorded emergency messages. Output relay for each amplifier channel for reporting single channel fault conditions.

The Duecanali 3904 is able to drive 70V/100V lines without external transformers. Output voltage limiter should be applied, and depending on the speakers being used a high pass filter (HPF) may be required.

Powersoft Duecanali 3904 DSP

Optional DSP provides to Duecanali 3904 DSP+AESOP full high quality on board sound processing. Sensing and communication board, standard on RS485 bus, Ethernet optional, provides full control and monitoring through Armonía Pro Audio Suite™, compatible with all other Powersoft K, M, D, Q and Ottocanali Series amplifiers. Interface available for MediaMatrix, Crestron, AMXcontrol, Q-SYS and monitoring systems.

Please call us at Old Barn Audio on 01892 752246 if you have any questions about the Powersoft Duecanali Legacy 3904 & DSP or any other product from the Duecanali Series of the Install Powersoft Amplifiers.


  • 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: 8 kg (17.6 lbs)
  • Standard Phoenix connectors: analog and digital input, audio outputs, aux supply, alarms and GPIO
  • Remotely switchable inputs (main and aux) per channel

Ideal applications for the Duecanali 3904

Technical Specifications Download the Powersoft Duecanali Legacy 3904 product data sheet