The Powersoft Quattrocanali-4804 DSP is a powerful 4800W Class-D Install Amplifier, designed for small-to medium-scale audio installations, where system flexibility is a must. In just 1RU, Quattrocanali offers smaller dimensions, lighter weight and the traditionally superb sound quality/reliability of all Powersoft products.

Quattrocanali DSP amplifiers implement a high efficiency microprocessor controlled PSU with built in PFC (Power Factor Correction), ensuring flawless worldwide operation with any AC mains voltage in the range of 90-264 VAC, to peak at 400 VAC. This particular amplifier contains DSP integration, alongside a whole host of features.

The patented SRM (Smart Rails Management) technology maximises the efficiency of the system and drastically reduces power consumption at any load and usage condition. A secondary high efficient power supply is present to keep the system responsive at any operating condition, so that system check and monitoring can be performed even in stand-by and deep-sleep modes.

Quattrocanali DSP Series are designed to work with lo-Z (from 2Ω) and 70V/100V distributed lines: any mixed configuration of low and high impedance output loads can be realised, making the Quattrocanali Series suitable for applications in installed audio systems. DSP versions of the Quattrocanali series, such as this product, extend the system performance with on board high-end signal processing.

Product Features

• Remote Control & Monitoring
  Software: Control and diagnostics monitoring via ArmoniaPlus. Dedicated WebApp.
• Power Supply
  Powersoft legendary universal switch-mode power supply up to 400VAC tolerant with Power Factor Correction. Patented output filter with ripple cancellation network. Low Inrush Limiting reduces AC inrush current, removing the need for expensive power sequencers. Detachable AC mains cable with IEC C19/22.2 (16A for EU, 20 A for USA) socket.
• Protections
  Fully protected circuit design. Temperature forecast with LCD traced historical behavior. Temperature controlled continuous variable speed fan, front to back airflow. DC Protection. Thermal Protection. AC Protection. VHF Protections. Long Term Limiter. Clip Limiter. Short Circuit Protection.
• General
  Fixed frequency switch-mode output stage for high grade sound accuracy. Compact Size: all models only 1RU for reduced rack cost and space. Lightweight: for easier racking and shipping: 7 kg (15.4 lbs). Standard Phoenix Connectors: analog audio outputs, aux supply, alarms and GPIO. Remotely switchable double input (main and aux) per channel.
• Digital Signal Processing
  TI C6000 DSP platform. AD/DA Converter: dual 24bit @ 48 kHz Tandem® architecture. Input/Output independent equalizers per channel providing PEQ, raised cosine, shelving IIR filters as well as custom output FIR filters. Delay up to 100 ms for time alignment. Active DampingControl™ for cable compensation. Peak, RMS voltage, RMS current, TruePower™ limiters.
• Settings
  Built-in defeatable clip limiters for each channel. Digital gain-attenuator control. User selectable gain/sensitivity. User selectable maximum output power for each channel. User selectable maximum mains current draw. Lockable set-up by user selectable access key code. Built in remote control via the RS-485 interface provides full diagnostic, operational setting and system monitoring.

Data Sheet