The ability to implement any configuration with ease makes the Duecanali series extremely flexible. Powersoft’s legendary efficiency saves valuable energy, keeping both operational cost and ‘carbon footprint’ at a minimum. The Duecanali 6404 DSP+D is designed to work with Lo-Z (from 2 Ω ) and with 70V/100V distributed lines any mixed impedance output loads can be realized.
A fully integrated state-of-the-art DSP yields extensive system management functionality. In addition to sound shaping and limiter functions in unique Powersoft style, the DSP hardware and ArmoníaPlus software enable compliance with IEC 60849 for the crucial requirements of sound systems for emergency purposes.
Features
This amplifier is built on Powersoft’s renowned universal switch-mode power supply, capable of tolerating up to 400VAC and equipped with full Power Factor Correction for stable, efficient performance in any environment. Its patented output filter incorporates a ripple-cancellation network, delivering a cleaner, more refined audio output. Low inrush-current limiting further enhances system integration by reducing AC inrush and eliminating the need for costly power sequencers. A detachable IEC C19/22.2 mains cable (16A EU / 20A USA) ensures simple setup and flexible power management.
Designed for reliability, the amplifier features a fully protected circuit architecture with safeguards against multiple fault conditions. AC protection automatically shuts down the supply if mains voltage drifts outside the safe operating range, while a clip limiter prevents severely clipped waveforms from damaging loudspeakers without sacrificing peak power. Additional layers of protection include DC protection against infrasonic output signals, VHF protection from non-audible high-frequency content, automatic short-circuit protection with self-reset, and a long-term RMS limiter that restricts excessive continuous power to protect drivers. Thermal protection ensures safe operation of the output stages up to 80°C (176°F), supported by a temperature-controlled variable-speed fan providing efficient front-to-back airflow. A temperature forecast function on the LCD display provides historical thermal behavior, enabling predictive maintenance.
Engineered with a fixed-frequency switch-mode output stage, the unit delivers exceptional sound accuracy while maintaining a compact 1RU form factor that conserves rack space. At just 7kg (15.4lbs), it remains lightweight and easy to handle during installation. Standard Phoenix connectors are provided for analog audio outputs, auxiliary power, alarms, and GPIO integrations. Each channel includes remotely switchable dual inputs (main and auxiliary) for redundancy and flexible routing.
The amplifier supports a wide range of loudspeaker system configurations, including direct-drive low-impedance setups and 70V/100V Hi-Z distributed line systems. Each channel is equipped with a switchable high-pass filter (35Hz or 70Hz) for system tuning, while bridged-mode operation enables maximum power delivery into low-impedance loads. Alarm and GPIO functions include NC/NO contacts for alerts, remote ON/OFF capability, and per-channel remote VCA control.
Advanced digital signal processing is powered by a TI C6000 DSP platform, offering precise control through PEQ, IIR, and FIR filters for optimized performance. High-fidelity audio conversion is ensured with dual 24-bit / 48kHz Tandem® AD/DA converters, while up to 100ms of delay allows seamless time alignment. Active DampingControl™ compensates for cable-related losses, and a full suite of limiters including Peak, RMS Voltage, RMS Current, and TruePower™ ensures safe and accurate output management.
Comprehensive remote control and monitoring are available via Powersoft’s ArmoníaPlus software suite and dedicated WebApp. Hardware controls on the unit include attenuation adjustments (0–26dB), selectable high-pass filters (35Hz, 70Hz), output mode selection (Lo-Z / Hi-Z / 70V / 100V), and fully adjustable gain, offering installers complete flexibility and precision in system configuration.
Technical Specifications
| Spec | Value |
|---|---|
| Output Power per Channel | 4600 W @ 2 Ω, 3200 W @ 4 Ω, 1800 W @ 8 Ω |
| Bridge Mode Output Power | 9200 W @ 4 Ω, 6400 W @ 8 Ω |
| Max Output Voltage @ 8 Ω | 175 Vpeak |
| Max Output Current | 110 Apeak |
Power Consumption / Current Draw
| Condition | 115 V | 230 V |
|---|---|---|
| Idle | 33 W – 0.53 A | 33 W – 0.37 A |
| 1/8 of Max Output Power @ 4 Ω | 1073 W – 10 A | 1068 W – 5.3 A |
Thermal
| Spec | Details |
|---|---|
| Operating Temperature Range | 0° – 45° C (32° – 113° F) |
