A versatile, dependable Analog 8-channel/Digital [Dante] 16 x 8-channel power amplifier delivering up to a total of 4,000 W at 4 Ohms of output power, Powersoft's Ottocanali 4K4 DSP+D works great for multi-zone use in small to mid-scale installations. It offers support for any combination of lo-Z loudspeakers, mono-bridgeable channel pairs, as well as 70V/100V Hi-Z distributed lines, with no need to employ step-up output transformers. It's equipped with switchable main/aux signal inputs, and provides a wide variety of system control, GPI/O, alarms, and monitoring functions, along with sound-shaping options. It uses redundant universal switch mode power supplies with PFC and patented SRM (Smart Rails Management) technology, and thus delivers maximum reliability, efficiency, and reduced power consumption. Additionally, it comes equipped with Dante functionality; including Dante redundant networking via (2) Rj45 ports on the rear panel:

• Primary/ETH1 is the Primary network port
• Secondary/ETH2 is the Secondary network port

Heralding a contemporary, innovative level of signal processing, the Ottocanali 4K4 DSP+D's provides non-boolean mixing and routing as well as multi-stage equalization with raised-cosine, IIR and FIR filters, up to 2 s of input processing delay, and 100 ms for time alignment, gain and polarity manipulation, crossover, peak limiters, TruePower™ limiters, plus Active DampingControl™.

Powersoft's renowned efficiency can conserve valuable energy, keeping both operational cost and 'carbon footprint' at a minimum: the Ottocanali 4K4 DSP+D really shines with exceptionally low power consumption and heat dissipation, which dramatically reduces costs from the AC mains supply and air conditioning/cooling systems – not to mention environmental benefits for a greener planet.

Applications:

• Multi-zone venues
• Themed entertainment, amusement parks, shopping malls
• Cruise ships
• Stadiums, arenas, convention centers
• Houses of worship
• Theaters, auditoriums, concert halls
• Main systems, central or distributed, lo-Z/hi-Z

Powersoft Ottocanali 4K4 DSP+D Features:

Power Supply

• Redundant universal switch mode power supply up to 400VAC tolerant with Power Factor Correction (PFC)
• 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 (16 A for EU, 20 A for USA) socket

Protections

• Fully protected circuit design with:
  • 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 reducing maximum output
  • Thermal protection
    • Output stages operating temperature up to 176° F (80° C)
  • Temperature-controlled continuous variable speed fan, front-to-back airflow

General

• Fixed frequency switchmode output stage for high grade sound accuracy
• All models 2 RU for reduced rack cost and space
• Light weight - for easier racking and shipping: 30.8 lbs (14 kg) 
• Standard Phoenix connectors: analog and digital input, audio outputs, aux supply, alarms, and GPIO
• Remotely switchable double input (main and aux) per channel

Loudspeaker System Configuration

• Direct drive either low impedance loads or 70V / 100V Hi-Z distributed lines
• Switchable 35Hz / 70Hz high pass filter per channel
• Mixed configuration with Lo-Z/Hi-Z systems possible
• Bridged mode low impedance per channel pair

Alarms and GPIO

• General Purpose Input/Output alarm interfaces:
  • Dangerous DC in the output power signal
  • Thermal stress
• Configurable alarm contact NC/NO per channel
• Remote AUX input / MAIN input switch
• Remote ON/OFF switch
• PWS OUT connector providing up to 24VDC

Remote management

• Control and monitoring through Armonía Pro Audio Suite™ (contact your Sales Pro for more information)

Powersoft Ottocanali 4K4 DSP+D Specifications:

General

• Number of channels:
  • Analog: 8
  • Dante, Digital: 16 x 8

Output power

• Single channel mode:
  • 2 Ohms: 450 W
  • 4 Ohms: 500 W
  • 8 Ohms: 250 W 
• Distributed line:
  • 70V: 500 W
  • 100V: 500 W
• Bridge mode:
  • 4 Ohms: 900W
  • 8 Ohms: 1000W
  • 16 Ohms: 500 W 
• Max output voltage / current:
  • Single channel mode (@ 2/4/8 Ohms): 65 V_peak/15 A_peak
  • Distributed line:
    • @ 70V: 100 V_peak
    • @ 100V: 140 V_peak
  • Bridge mode (@ 4/8/16 Ohms): 135 V_peak 

AC Mains Power

• Power supply: Redundant, universal, regulated switch mode with PFC
• Nominal power requirement: 100-240 V ±10% @ 50-60 Hz
• Operating voltage: 90 V - 264 V
• Power consumption:
  • 115 V:
    • Idle: 47 W, 0.75 A
    • 1/8 of max output power @ 4 Ohms: 740 W, 6.6 A
    • 1/4 of max output power @ 4 Ohms: 1400 W, 12.4 A
  • 230 V:
    • Idle: 50 W, 0.7 A
    • 1/8 of max output power @ 4 Ohms: 750 W, 3.9 A
    • 1/4 of max output power @ 4 Ohms: 1405 W, 6.9 A

Thermal

• Operating temperature range: 32° - 113° F (0° - 45° C)
• Thermal dissipation:
       Fan variable speed, temperature controlled front to rear airflow
  • 115 V:
    • Idle: 160 BTU/h, 40.3 kcal/h 
    • 1/8 of max output power @ 4 Ohms: 801 BTU/h, 201.9 kcal/h
    • 1/4 of max output power @ 4 Ohms: 1340 BTU/h, 337.7 kcal/h 
  • 230 V:
    • Idle: 170 BTU/h, 42.8 kcal/h
    • 1/8 of max output power @ 4 Ohms: 839 BTU/h, 211.4 kcal/h
    • 1/4 of max output power @ 4 Ohms: 1340 BTU/h, 337.7 kcal/h

Audio

• Gain: 32 dB
• Input sensitivity: 1.2 V / 3.8 dBu
• Max input level: 6 V / 17.8 dBu
• Frequency response: 20 Hz - 20 kHz (±0.5 dB) @ 1 W, 8 Ohms
• S/N ratio: > 107 dB (20 Hz - 20 kHz, A weighted)
• Crosstalk separation: > 65 dB @ 1kHz
• THD+N: < 0.08% from 0.1 W to full power (typically <0.05%)
• IMD: < 0.8% from 1 W to full power (typically <0.05%)
• Input impedance: 20 kOhms, balanced
• Slew rate: > 50 V/µs @ 8 Ohms, input filter bypassed
• Damping factor: > 10000 @ 20-100 Hz (Lo-Z)

Networking

• Ports: 2x RJ45 ports on rear panel
• Protocols:
  • Dante by Audinate, Dante redundant
  • Gigabit Ethernet (IEEE 802.3ab, 1 Gbit/s)
  • Fast Ethernet (IEEE 802.3u, 100 Mbit/s)
• Topologies: Star, daisy chain, looped daisy chain, redundant stars

Front panel  

• Indicators and Controllers:
  • (8)  LED bar - Signal level and over-temperature protection
  • (1) Push-button - Toggle PWS OUT
• Connectors:  
  • AC main: (1) IEC C20 connector - 20 A max (region-specific power cord provided)
• Audio signal input:
  • (1) 12-pin Phoenix MC 1.5/12-ST-3.81 - Signal input – MAIN
  • (1) 12-pin Phoenix MC 1.5/12-ST-3.81 - Signal input – AUX
• Alarm: 2 x 12-pin Phoenix MC 1.5/12-ST-3.81 - Alarm connector
• Remote command:
  • (1) 4-pin Phoenix MC 1.5/4-ST-3.81 - Remote line/aux switch and PWS out
  • (1) 4-pin Phoenix MC 1.5/4-ST-3.81 - Remote on/off switch and aux voltage
• Loudspeakers: 2 x 8-pin Phoenix DFK-PC 4/8-G-7.62 - Signal output

Rear panel  

• I/O:
  • (2) RJ-45 Dante-compatible Ethernet ports
• Indicators and Controllers:
  • (8) DIP switch - Toggle lo/hi impedance connection
  • (8) DIP switch - Toggle 70V/100V distributed line nominal voltage
  • (8) DIP switch - Toggle High Pass Filter (HPF)
  • (8) DIP switch - Toggle 35Hz/70Hz HPF cutting frequency
  • (1) Power switch

Physical

• Dimensions (L x H x W): 19.0" x 3.5" x 14.2" (483 x 89 x 360mm)
• Weight: 30.9 lbs (14 kg)

*Note: All information, specifications, and data is subject to change without notice.