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Powersoft Advanced Tech Ottocanali 12K4 DSP+D
Up to 12kW 2RU Power Amp for Lo-Z and Hi-Z Transducers, with Danteâ„¢

OUR PART #:  Ottocanali 12K4 DSP+

Offering up to a total of 12,000 W at 4 Ohms...
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List Price: $8,440.00

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Offering up to a total of 12,000 W at 4 Ohms, the Powersoft Audio Ottocanali 12K4 DSP+D is a dependable and versatile Analog 8-channel/Dante 16-channel power amplifier that's ideal for multi-zone use in medium to large-scale installations. It supports any combination of lo-Z loudspeakers, mono-bridgeable channel pairs, and 70V/100V Hi-Z distributed lines without the need for step-up output transformers. It features switchable main/aux signal inputs and offers a wide range of system control, alarms, GPI/O and monitoring functions as well as sound shaping options. The Ottocanali 12K4 DSP+D features innovative signal processing and supports 2 redundant Dante by Audinate® digital streams.

The introduction of the Ottocanali 12K4 DSP+D heralds a contemporary, innovative level of signal processing, offering non-boolean routing and mixing, multi-stage equalization with raised-cosine, IIR and FIR filters, delay of up to 2 s in input processing and 100 ms for time alignment, gain and polarity adjustment, crossover, peak limiters, TruePowerâ„¢ limiters, plus Active DampingControlâ„¢.

It uses redundant universal switch mode power supplies that include PFC and patented SRM (Smart Rails Management) technology that maximizes reliability and efficiency, plus reduces power consumption.

Powersoft's legendary efficiency conserves valuable energy, minimizing both operational cost and ‘carbon footprint’: the Ottocanali 12K4 DSP+D shines with remarkably low power consumption and heat dissipation; This dramatically reduces costs from the AC mains supply and air conditioning/cooling systems – not to mention the benefits to the environment for a greener planet

Powersoft Audio Ottocanali 12K4 DSP+D Features:

Power supply

  • Redundant 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


  • 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 continous variable speed fan, front to back airflow


  • Fixed frequency switchmode output stage for high grade sound accuracy
  • 2 RU for reduced rack cost and space
  • Light weight - for easier racking and shipping: 14 kg / 30.8 lbs
  • 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

Digital Signal Processing

  • TI C6000 DSP platform architecture
  • AD/DA converter: dual 24-bit @ 96 kHz Tandem® architecture, 127 dB dynamic range, per channel
  • Input/output independent equalizers per channel providing Raised-cosine, custom FIR, parametric IIR: peaking, hi/lo-shelving, all-pass, band-pass, band-stop, hi/lo-pass
  • Crossovers: linear phase (FIR), hybrid (FIR-IIR), Butterworth, Linkwitz-Riley, Bessel: 6 dB/oct to 48 dB/oct (IIR)
  • Input delay up to 4 s and output delay up to 200 ms for time alignment per channel
  • Active DampingControlâ„¢ for cable compensation
  • Power limiter (TruePowerâ„¢, RMS voltage, RMS current) + Peak Limiter

Remote management

  • Control and monitoring through Armonía Pro Audio Suiteâ„¢

Powersoft Audio Ottocanali 12K4 DSP+D Specifications:

  • General:
    • Number of channels:
      • Analog: 8
      • Digital: Dante, 16
  • Output Stage*:
    • Maximum output power per channel:
      • @ 8 Ohms: 850 W
      • @ 4 Ohms: 1,500 W
      • @ 2 Ohms: 1,000 W
    • Maximum output power:
      • @ 8 Ohm Bridged (Channel Pair): 3,000 W
      • @ 4 Ohm Bridged (Channel Pair): 2,000 W
      • @ Hi-Z distributed line 100 V: 1,500 W
      • @ Hi-Z distributed line 70 V: 1,500 W
    • Peak total output, all channels driven: 12,000 W 
    • Maximum unclipped output voltage @ 8 Ohms: 116.6 Vpeak
    • Maximum output current: 45 Apeak
      *Note: The power figure is calculated by driving and loading symmetrically all the channels:
      uneven loads allow to achieve higher performances.
  • AC Main 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
  • Thermal:
    • Operating temperature range: 32° - 113° F (0°- 45° C)
  • Audio:
    • Gain: 32 dB
    • Input sensitivity: 1.94 V / 8 dBu
    • Max input level: 6 V / 17.8 dBu
    • Frequency response: 20 Hz - 20 kHz (+ / - 0.5 dB) @ 1 W, 8 Ohm
    • S/N ratio: > 109 dB (20 Hz - 20 kHz, A weighted)
    • Crosstalk separation: > 70 dB @ 1 kHz (4 Ohm)
    • THD+N: < 0.8% from 1 W to full power (typically <0.05%)
    • IMD: < 0.8% from 1 W to full power (typically <0.05%)
    • Input impedance: 10 kOhm balanced
    • Damping factor: > 10,000 @ 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
      • (8) Knob - Level attenuator (continuous)
      • (1) Push-button - Toggle PWS OUT
      • (4) DIP switch - Toggle energy save on/off per channel pair
    • 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 - Signalinput – MAIN
        • (1) 12-pin Phoenix MC 1.5/12-ST-3.81 - Signal input – AUX
      • Alarm: (2) 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) 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
      • (8) DIP switch - Toggle 35 Hz/70 Hz HPF cutting frequency
      • (1) Power switch
  • Physical Construction:
    • Dimensions (L x H x W): 19.0" x 3.5" x 14.2" (483 x 89 x 360 mm)
    • Weight: 30.9 lbs. (14 kg)

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

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