Overview
Quattrocanali 8804 DSP+D offers the traditionally amazing sound quality and reliability of all Powersoft products.
The patented SRM (Smart Rails Management) technology allows to maximize the efficiency of the system and drastically reduce power consumption in any load and usage condition. Quattrocanali features the lowest thermal dissipation in the industry, reducing the need for external cooling devices.
Quattrocanali is designed to operate with Lo-Z (from 2 Ω) and 70V/100V distributed lines or any mix of the two. DSP+D versions of the Quattrocanali grant in-depth control and monitoring via ArmoníaPlus, tailoring the sound and managing the system can be done by a remote, decentralized location.
This Amplifier Platform can also be trusted in mission-critical applications, such as fire alarm systems, thanks to the cleverly engineered power supply that allows reliable operation even when connected to a UPS.
MyPowersoft services are available for this product.
Features
Power Supply
Patented output filter with ripple cancellation network
Low Inrush Limiting reduces AC inrush current, eliminating the need for expensive power sequencers
Detachable AC mains cable with IEC C19/22.2 socket (16A for EU, 20A for USA)
Protections
Fully protected circuit design with:
AC protection : Shuts down the power supply when AC mains voltage is outside the operating range
Clip limiter : Prevents severely clipped waveforms from reaching loudspeakers while maintaining full peak power output
DC protection : Protects against infrasonic signals at the outputs
VHF protections : Guards the loudspeakers against non-audible, strong, non-musical high-frequency signals
Short circuit protection : Protects the amplifier from short circuits or other stressful events, with automatic protection reset
Long-term limiter : Protects loudspeakers against steady, long-term RMS (non-audio) signals by reducing maximum output
Thermal protection : Output stages operate at temperatures up to 80°C (176°F)
Temperature controlled continuous variable speed fan : Front-to-back airflow
Temperature forecast with LCD traced historical behavior
General
Fixed frequency switch-mode output stage for high-grade sound accuracy
Compact size : All models are only 1RU, reducing rack costs and space
Lightweight : 7 kg (15.4 lbs) for easier racking and shipping
Standard Phoenix connectors : Analog audio outputs, auxiliary supply, alarms, and GPIO
Remotely switchable double input : Main and auxiliary inputs per channel
Settings
Built-in defeatable clip limiters for each channel
Digital gain-attenuator control
Defeatable gate selection for each channel
User-selectable gain/sensitivity
User-selectable maximum output power for each channel
User-selectable maximum mains current draw
Lockable set-up via user-selectable access key code
Built-in remote control via the RS-485 interface , offering full diagnostic, operational setting, and system monitoring
Digital Signal Processing
TI C6000 DSP platform
AD/DA converter : Dual 24-bit @ 48 kHz Tandem® architecture
Input/output independent equalizers per channel : Includes PEQ, raised cosine, shelving IIR filters, and custom output FIR filters
Delay : Up to 100 ms for time alignment
Active DampingControl™ : Cable compensation
Peak, RMS voltage, RMS current, TruePower™ limiters
Remote Control and Monitoring
Via Software :
Control and diagnostics monitoring via ArmoniaPlus
Dedicated WebApp
Via Hardware :
Attenuation (from 0dB to 26dB)
High-pass filters (35Hz, 70Hz)
Lo-Z/Hi-Z/70V/100V output selection
Adjustable gain (from 26dB to 35dB)
Specifications
General
Output Power per Channel
1800 W @ 2 Ω
2400 W @ 4 Ω
1600 W @ 8 Ω
Bridge Mode
3600 W @ 4 Ω
4800 W @ 8 Ω
Max Output Voltage / Current
Max Unclipped Voltage @ 8 Ω: 175 Vpeak
Current: 55 Apeak
AC Main Power
Power Supply : Universal, regulated switch mode with PFC (Power Factor Correction)
Nominal Power Requirement : 100-240 V ±10%, 50-60 Hz
Operating Voltage : 90 V - 264 V
Power Consumption / Current Draw
Idle
115 V: 34 W - 0.56 A
230 V: 34 W - 0.37 A
1/8 of Max Output Power @ 4 Ω
115 V: 1702 W - 15.6 A
230 V: 1676 W - 8.2 A
Thermal
Operating Temperature Range : 0° - 45° C (32° - 113° F)
Thermal Dissipation
Idle
115 V: 116 BTU/h
230 V: 117 BTU/h
1/8 of Max Output Power @ 4 Ω
115 V: 1713 BTU/h
230 V: 1624 BTU/h