Used Powersoft Duecanali 3904 / Duecanali 3904 DSP+AESOP
Used Powersoft Duecanali 3904 and Duecanali 3904 DSP+AESOP are professional power amplifiers designed for fixed installation environments, featuring a universal switch mode power supply with Power Factor Correction and a compact 1U form factor. Second-hand units combine a wide suite of loudspeaker and amplifier protections with lightweight construction suited to permanent rack installations. Scroll down to explore the used Duecanali 3904 listings currently available from sellers worldwide.
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Powersoft Duecanali 3904 / Duecanali 3904 DSP+AESOP specifications
| Brand | Powersoft |
| Segment | Audio |
About the Powersoft Duecanali 3904 / Duecanali 3904 DSP+AESOP
The Powersoft Duecanali 3904 and Duecanali 3904 DSP+AESOP are professional power amplifiers built for fixed installations. Both models share Powersoft's universal switch mode power supply, which tolerates AC mains up to 400VAC and includes Power Factor Correction, patented ripple cancellation, and low inrush limiting to remove the need for external power sequencers. A comprehensive protection set covers AC mains faults, clip limiting, DC and VHF output protection, short circuit events, long-term RMS limiting, and thermal management up to 80°C via a temperature-controlled variable-speed fan with front-to-back airflow. The fixed-frequency switchmode output stage targets high-grade sound accuracy. All models occupy just 1U of rack space and weigh 8 kg, with standard Phoenix connectors for analog and digital inputs and audio outputs, plus a detachable IEC C19/C22.2 mains cable.
Powersoft Duecanali 3904 / Duecanali 3904 DSP+AESOP — buyer FAQs
What is the Powersoft Duecanali 3904 and what is it designed for?
The Powersoft Duecanali 3904 and Duecanali 3904 DSP+AESOP are professional power amplifiers built specifically for fixed installation environments. Both models share the same universal switch mode power supply with Power Factor Correction, low inrush limiting that removes the need for external power sequencers, and a fixed-frequency switchmode output stage intended for high-grade sound accuracy in permanent installations.
Who makes the Duecanali 3904 and where does it fit in the Powersoft range?
The Duecanali 3904 is made by Powersoft, an Italian professional audio manufacturer founded in 1995 and headquartered near Florence, specialising in high-efficiency power amplifiers for live sound and installed audio. The Duecanali 3904 sits within Powersoft's fixed installation amplifier line, with the DSP+AESOP variant offering additional digital signal processing and AES/EBU input capability alongside the core amplifier platform.
What protection systems does the Duecanali 3904 include?
The Duecanali 3904 carries a broad protection suite covering AC mains faults, clip limiting to prevent clipped waveforms reaching loudspeakers, DC and VHF output protection, short circuit protection with automatic reset, long-term RMS limiting to guard loudspeakers against sustained non-audio signals, and thermal management up to 80 degrees Celsius via a temperature-controlled variable-speed fan with front-to-back airflow.
How much rack space does the Duecanali 3904 require and how heavy is it?
All Duecanali 3904 models occupy a single rack unit (1U), making them compact for multi-amplifier fixed installations where rack space is at a premium. Each unit weighs 8 kg (17.6 lbs). Connections use standard Phoenix connectors for analog and digital inputs and audio outputs, with a detachable IEC C19/C22.2 mains cable rated at 16 A for EU or 20 A for USA configurations.
What should I check when buying a used Duecanali 3904?
When buying a second-hand Duecanali 3904, confirm which variant is on offer as the DSP+AESOP version includes digital processing and AES/EBU connectivity absent from the standard model. Check that the detachable IEC mains cable is included and rated correctly for your region. Verify all protection circuits and the variable-speed fan function correctly. Listings on this page are backed by 10K Used's 21-day warranty covering major functional faults; full details are in the buying guide at https://www.10kused.com/used-av-equipment-guide/.
