
Description
Quattrocanali 1204 offers the traditionally amazing sound quality and reliability of all Powersoft products.
Quattrocanali is designed to operate with Lo-Z (from 2 ?) and 70V/100V distributed lines or any mix of the two. DSP+ versions of the Quattrocanali grant in-depth control and monitoring via ArmoníaPlus, tailoring the sound and managing the system can be done in a remote, decentralized location.
DSP+ versions extend signal routing capabilities with the integration of AES67 digital audio networking architecture.
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.
Power supply
- 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
- Ac protection: shut down power supply when AC mains voltage is outside operating range
- Clip limiter: prevents severely clipped waveforms from reaching loudspeakers, while still maintaining full peak power output
- DC protection: protects against infrasonic signal at the outputs
- VHF protections: protects the loudspeakers against non audible, strong, non musical high frequency signals
- Short circuit protection: protects the amplifier from short circuit or other stressful events for the output circuits with automatic protection reset
- Long term limiter: protects the loudspeaker against steady long term RMS (non audio) signals, by reducing maximum output
- Thermal protection: output stages operating temperature 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 only 1 RU for reduced rack cost and space
- Light weight – 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
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 by user selectable access key code
- Built in remote control via the RS-485 interface provides full diagnostic, operational setting and system monitoring
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
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 35 dB)
| Number of output channels | 4 Hi-Z or Lo-Z (bridgeable per ch. pair) Phoenix PC 5/4-STF1-7,62 |
| Number of input channels | Analog: 4 Phoenix MC 1,5/12-ST-3,81 AES67: 4 (1 x RJ45) |
| Input sensitivity @ 8 ? with 26 dB Gain | 2.48 Vrms |
| Input sensitivity @ 8 ? with 29 dB Gain | 1.76 Vrms |
| Input sensitivity @ 8 ? with 32 dB Gain | 1.24 Vrms |
| Input sensitivity @ 8 ? with 35 dB Gain | 0.88 Vrms |
| SNR (20 Hz - 20 kHz @ 8 ? - typical) | 104 dB(A) |
| Max input level | 20 dBu |
| Frequency Response | 20 Hz - 20 kHz ±1.0 dB, 1 W @ 8 ? |
| Crosstalk (1 kHz) | typical -70 dB |
| Input impedance | 20 k? balanced |
| THD+N (from 0.1 W to Half Power) | < 0.1% (typical < 0.05%) |
| SMPTE IMD (from 0.1 W to Half Power) | < 0.1% (typical < 0.05%) |
| Slew Rate | > 50 V/µs @ 8 ?, input filter bypassed |
| Output impedance at 100 Hz | 26 m? |
| DSP | |
| AD converters | 24 Bit Tandemª @ 48 kHz typical 125 dB-A Dynamic Range - 0.005 % THD+N |
| DA converters | 24 Bit Tandemª @ 48 kHz typical 117 dB-A Dynamic Range - 0.003 % THD+N |
| Sample rate converter | 24 Bit @ 44.1 kHz to 96 kHz typical 140 dB Dynamic Range - 0.0001 % THD+N |
| Internal precision | 32 bit floating point |
| Latency | 2.5 ms fixed latency architecture |
| Memory/Presets | 49 amplifier snapshots, virtually unlimited speaker presets |
| Delay | 2 s (input) + 100 ms (output) for time alignment |
| Equalizer | Raised-cosine, custom FIR, parametric IIR: peaking, hi/lo-shelving, all-pass, band-pass, band-stop, hi/lo-pass |
| Crossover | linear phase (FIR), Butterworth, Linkwitz-Riley, Bessel: 6 dB/oct to 48 dB/oct (IIR) |
| Limiters | TruePowerª, RMS voltage, RMS current, Peak limiter |
| Damping control | Active DampingControlª and LiveImpedanceª measurement |
| Maximum output power | |
| per channel @ 8 ? (symmetrical) | 300 W |
| per channel @ 4 ? (symmetrical) | 300 W |
| per channel @ 2 ? (symmetrical) | 400 W |
| @ 4 ? Bridged (symmetrical) | 800 W |
| @ 8 ? Bridged (symmetrical) | 600 W |
| @ Hi-Z distributed line 100 V (symmetrical) | 300 W |
| @ Hi-Z distributed line 70 V (symmetrical) | 300 W |
| per channel @ 8 ? (asymmetrical) | 1100 W |
| per channel @ 4 ? (asymmetrical) | 1100 W |
| per channel @ 2 ? (asymmetrical) | 1100 W |
| @ Hi-Z distributed line 100 V (asymmetrical) | 1100 W |
| @ Hi-Z distributed line 70 V (asymmetrical) | 1100 W |
| Maximum unclipped output voltage @ 8 ? | 70 V peak |
| Maximum output current | 33 A peak |
| Power / Thermal | |
| Idle | Power: 31.1 W Current Draw: 0.45 A rms Thermal Loss: 106 BTU/h |
| 1/8 Power @ 4? | Power: 227 W Current Draw: 2.1 A rms Thermal Loss: 261 BTU/h |
| Power supply | Universal regulated switch mode with PFC, SRM |
| Nominal voltage (±10%) | 100-240 VAC @ 50-60Hz |
| Operating Voltage | 90-264 VAC |
| AC Mains connector | IEC C20 inlet (20 A max) region-specific power cord provided |
| Networking | |
| Standards compliance | auto-sensing Fast Ethernet (IEEE 802.3u, 100 Mbit/s) |
| Supported topologies | Star |
| Remote interface | Armon’aPlusª |
| Construction | |
| Dimensions | 483 x 44.5 x 358 mm 19.0 x 1.75 x 14.1 in |
| Weight | 7 Kg (15 lb) |
Quattrocanali 1204 offers the traditionally amazing sound quality and reliability of all Powersoft products.
Quattrocanali is designed to operate with Lo-Z (from 2 ?) and 70V/100V distributed lines or any mix of the two. DSP+ versions of the Quattrocanali grant in-depth control and monitoring via ArmoníaPlus, tailoring the sound and managing the system can be done in a remote, decentralized location.
DSP+ versions extend signal routing capabilities with the integration of AES67 digital audio networking architecture.
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.
Power supply
- 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
- Ac protection: shut down power supply when AC mains voltage is outside operating range
- Clip limiter: prevents severely clipped waveforms from reaching loudspeakers, while still maintaining full peak power output
- DC protection: protects against infrasonic signal at the outputs
- VHF protections: protects the loudspeakers against non audible, strong, non musical high frequency signals
- Short circuit protection: protects the amplifier from short circuit or other stressful events for the output circuits with automatic protection reset
- Long term limiter: protects the loudspeaker against steady long term RMS (non audio) signals, by reducing maximum output
- Thermal protection: output stages operating temperature 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 only 1 RU for reduced rack cost and space
- Light weight – 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
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 by user selectable access key code
- Built in remote control via the RS-485 interface provides full diagnostic, operational setting and system monitoring
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
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 35 dB)
| Number of output channels | 4 Hi-Z or Lo-Z (bridgeable per ch. pair) Phoenix PC 5/4-STF1-7,62 |
| Number of input channels | Analog: 4 Phoenix MC 1,5/12-ST-3,81 AES67: 4 (1 x RJ45) |
| Input sensitivity @ 8 ? with 26 dB Gain | 2.48 Vrms |
| Input sensitivity @ 8 ? with 29 dB Gain | 1.76 Vrms |
| Input sensitivity @ 8 ? with 32 dB Gain | 1.24 Vrms |
| Input sensitivity @ 8 ? with 35 dB Gain | 0.88 Vrms |
| SNR (20 Hz - 20 kHz @ 8 ? - typical) | 104 dB(A) |
| Max input level | 20 dBu |
| Frequency Response | 20 Hz - 20 kHz ±1.0 dB, 1 W @ 8 ? |
| Crosstalk (1 kHz) | typical -70 dB |
| Input impedance | 20 k? balanced |
| THD+N (from 0.1 W to Half Power) | < 0.1% (typical < 0.05%) |
| SMPTE IMD (from 0.1 W to Half Power) | < 0.1% (typical < 0.05%) |
| Slew Rate | > 50 V/µs @ 8 ?, input filter bypassed |
| Output impedance at 100 Hz | 26 m? |
| DSP | |
| AD converters | 24 Bit Tandemª @ 48 kHz typical 125 dB-A Dynamic Range - 0.005 % THD+N |
| DA converters | 24 Bit Tandemª @ 48 kHz typical 117 dB-A Dynamic Range - 0.003 % THD+N |
| Sample rate converter | 24 Bit @ 44.1 kHz to 96 kHz typical 140 dB Dynamic Range - 0.0001 % THD+N |
| Internal precision | 32 bit floating point |
| Latency | 2.5 ms fixed latency architecture |
| Memory/Presets | 49 amplifier snapshots, virtually unlimited speaker presets |
| Delay | 2 s (input) + 100 ms (output) for time alignment |
| Equalizer | Raised-cosine, custom FIR, parametric IIR: peaking, hi/lo-shelving, all-pass, band-pass, band-stop, hi/lo-pass |
| Crossover | linear phase (FIR), Butterworth, Linkwitz-Riley, Bessel: 6 dB/oct to 48 dB/oct (IIR) |
| Limiters | TruePowerª, RMS voltage, RMS current, Peak limiter |
| Damping control | Active DampingControlª and LiveImpedanceª measurement |
| Maximum output power | |
| per channel @ 8 ? (symmetrical) | 300 W |
| per channel @ 4 ? (symmetrical) | 300 W |
| per channel @ 2 ? (symmetrical) | 400 W |
| @ 4 ? Bridged (symmetrical) | 800 W |
| @ 8 ? Bridged (symmetrical) | 600 W |
| @ Hi-Z distributed line 100 V (symmetrical) | 300 W |
| @ Hi-Z distributed line 70 V (symmetrical) | 300 W |
| per channel @ 8 ? (asymmetrical) | 1100 W |
| per channel @ 4 ? (asymmetrical) | 1100 W |
| per channel @ 2 ? (asymmetrical) | 1100 W |
| @ Hi-Z distributed line 100 V (asymmetrical) | 1100 W |
| @ Hi-Z distributed line 70 V (asymmetrical) | 1100 W |
| Maximum unclipped output voltage @ 8 ? | 70 V peak |
| Maximum output current | 33 A peak |
| Power / Thermal | |
| Idle | Power: 31.1 W Current Draw: 0.45 A rms Thermal Loss: 106 BTU/h |
| 1/8 Power @ 4? | Power: 227 W Current Draw: 2.1 A rms Thermal Loss: 261 BTU/h |
| Power supply | Universal regulated switch mode with PFC, SRM |
| Nominal voltage (±10%) | 100-240 VAC @ 50-60Hz |
| Operating Voltage | 90-264 VAC |
| AC Mains connector | IEC C20 inlet (20 A max) region-specific power cord provided |
| Networking | |
| Standards compliance | auto-sensing Fast Ethernet (IEEE 802.3u, 100 Mbit/s) |
| Supported topologies | Star |
| Remote interface | Armon’aPlusª |
| Construction | |
| Dimensions | 483 x 44.5 x 358 mm 19.0 x 1.75 x 14.1 in |
| Weight | 7 Kg (15 lb) |
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