The Duecanali 6404 DSP+D from Powersoft is a high-output four-channel installation amplifier designed for large-scale and high-demand sound systems. It features Powersoft’s renowned universal switch-mode power supply with Power Factor Correction, tolerant up to 400VAC, along with a patented ripple-cancellation output filter and low inrush limiting to simplify power management. Despite its substantial power capability, it remains compact in a 1RU chassis and lightweight at 7 kg, with efficient front-to-back cooling supported by temperature-controlled variable-speed fans and LCD-based thermal history monitoring.

Comprehensive protection systems include AC, clip, DC, VHF, short-circuit, long-term RMS limiting, and thermal safeguards up to 80°C, ensuring reliable performance in continuous operation. The amplifier can directly drive low-impedance loads or 70V/100V high-impedance distributed lines, with selectable 35Hz/70Hz high-pass filters, mixed Lo-Z/Hi-Z configurations, and bridged operation per channel pair. Powered by a TI C6000 DSP platform with 24-bit/48kHz converters, it delivers advanced equalization options including IIR and custom FIR filters, up to 100 ms delay for time alignment, Active DampingControl™, and precise Peak, RMS voltage, RMS current, and TruePower™ limiting. Remote monitoring and control are available through ArmoníaPlus software and a dedicated WebApp, while onboard hardware controls allow adjustment of gain, attenuation, and output configuration for flexible system integration.