NetPA 204 POE

NetPA 204 POE

1. Provide a compact, PoE powered audio amplifier that shall support four digital audio inputs received from a Dante® audio network, integrated 4x4 mix matrix, four amplified outputs with up to 20 watts rms power output per channel, and the ability to be powered by PoE, PoE+, or PoE++.
   1. Compact amplifier with up to 20 watts rms power output per channel, Dante audio networking, and integrated DSP
      1. Input Requirements
         1. Shall support four digital audio inputs, received from a Dante audio network via an RJ-45 connector
      2. Output Requirements
         1. Shall support four speaker level signals on four, 2-pole connectors
            1. Shall provide up to 20 watts rms output power per channel with all channels driven into 8 ohms measured at 1 kHz with 0.1% THD
            2. Shall provide up to 20 watts rms output power per channel with all channels driven into 4 ohms measured at 1 kHz with 0.2% THD
            3. Shall provide a signal-to-noise ratio at least 100 dB measured from 20 Hz to 20 kHz, unweighted
            4. Shall support a minimum load impedance of 4 ohms
            5. Output power shall scale based on available PoE power class and number of speakers connected
            6. Shall support 24 bit, 48 kHz D/A conversion
      3. DSP Engine Requirements
         1. Shall provide integrated audio DSP engine
         2. Shall provide a mix matrix such that all inputs can be discretely routed to any or all of the outputs
         3. Shall provide 4 DSP input channels with filters, dynamics, and gain processing
         4. Shall provide 4 DSP output channels with delay, filters, dynamics, and attenuation processing
      4. Configuration Software Requirements
         1. Shall provide PC-based DSP Configurator Pro software allowing flexible control of the digital signal processor’s fixed architecture
         2. Shall provide a Live mode for real-time control of parameters without compiling and file uploading to processor
         3. Shall provide an Emulate mode for offline configuration
         4. Shall provide single, scrollable window for viewing of all inputs and outputs, audio processing blocks, routing, mix points, and virtual routing
         5. Shall provide setup and configuration of digital audio processing tools including, but not limited to: Filters (high pass, low pass, bass shelving, treble shelving, and parametric); Dynamics processing (Compressor, Limiter); Delay processing; and Ducking
         6. Shall provide cut, copy, paste editing between processing blocks
         7. Shall provide matrix routing with integrated mix point gain adjustment between inputs and outputs
         8. Shall provide Group Master controls for consolidation of individual gain or mute control members of the same type into one point of control
         9. Shall provide Soft Limits settings to define upper and lower control limits on Group Masters for use with external controls
         10. Shall provide Presets for recall of any processing block setting, level setting or audio routing; presets shall be saved for the entire system, or any selected partial group of inputs, outputs, mix points, and DSP blocks
         11. Shall provide real-time metering of levels within each Input Gain, Compressor, Limiter, and Output Attenuation processing block in Live mode
         12. Shall provide a Meter Bridge window for real-time metering of all input and output channels with clipping indication in Live mode
         13. Shall provide keyboard-based navigation of configuration software utilizing directional controls, keyboard shortcuts, and spreadsheet software-style commands
         14. Shall provide file saving in both Live and Emulate mode
         15. Shall provide configuration file upload in Live mode
         16. Shall provide configuration and file saving of multiple, linked or networked processors from a single configuration software session
      5. Amplifier Requirements
         1. Shall utilize an efficient Class D amplifier design
         2. Shall be convection cooled and operate without fans or vents
         3. Shall provide an automatic clip limiter to detect onset of clipping by comparing input and output waveforms and automatically reduce gain without audible artifacts to eliminate clipping distortion
         4. Shall provide multiple protection circuits that activate during output shorts, thermal overload, or DC faults
         5. Shall provide power factor correction technology to remove harmonic content on the AC power line
      6. Dante Audio Networking Requirements
         1. Shall support receive channels over a local area network using standard Internet protocols
            1. Four Dante channels will be tied to the DSP input section
         2. Shall support Dante Controller software for digital audio network configuration
         3. Shall support Dante Domain Manager network management software for network security and logical segmenting.
         4. Shall support the AES67 standard for interoperability with other devices that also support AES67
         5. Shall provide an RJ-45 connector to support Dante audio network connection
         6. Shall synchronize to the master clock on the Dante network
         7. Shall be compatible with uncompressed digital audio at 44.1, 48, 88.2, and 96 kHz sampling rates with 24-bit resolution
      7. Power Requirements
         1. Shall support three common PoE standards
            1. PoE++ Power Class 5 (802.3bt)
            2. PoE+ Power Class 4 (802.3at)
            3. PoE Power Class 3 (802.3af)
      8. Control Requirements
         1. Shall support remote mute control on a 2-pole 3.5 mm captive screw connector
         2. Shall support remote control operation via external control system using Simple Instruction Set commands sent over the Dante network connection or USB
      9. Front Panel Requirements
         1. Shall provide an LED for power indication that lights green when the unit is receiving power and active
            1. LED shall blink momentarily in the same color and pattern as the Link indicator LED on the rear panel when an “Identify Device” request is sent from Dante Controller software
         2. Shall provide green LEDs for input signal presence indication
         3. Shall provide red LEDs for indication of clip warning and protection circuit activation
      10. Rear Panel Requirements
          1. Shall provide an RJ-45 connector to support Dante digital audio network connection, PoE, and up to four incoming digital audio channels
          2. Shall provide a configuration port on one USB-C connector
          3. Shall provide three LED indicators to show connected PoE power class
             1. PoE++ Power Class 5 (802.3bt)
             2. PoE+ Power Class 4 (802.3at)
             3. PoE Power Class 3 (802.3af)
          4. Shall provide four speaker outputs on four 2-pole, 5 mm captive screw connectors
          5. Shall provide remote mute control port on one 2-pole, 3.5 mm captive screw connector
          6. Shall provide green LED for indication of synchronization to the master clock on the Dante network
             1. LED shall blink green when the unit generates the Dante network audio clock
             2. LED shall light solid green when the unit is locked to the Dante network audio clock
             3. LED shall remain unlit when the unit is not locked to the Dante network audio clock
      11. General Requirements
          1. Shall be enclosed in a rack-mountable 1U, half rack width metal enclosure
          2. Shall be convection cooled with no fans or vents
          3. Shall include furniture mount hardware
          4. Shall be compatible with optional ATB 100 Amplifier Tile Bridge Ceiling Mount
          5. Shall meet regulatory compliances
             1. CE, c-UL, UL, C-tick, EN55032, EN55035, FCC Class B, ICES, VCCI Class B, RoHS, WEEE
             2. UL 62368-1 and BSEN 62368-1
             3. Shall be UL listed for plenum airspaces and meet UL 2043 compliance for heat and smoke release
          6. Shall provide three years parts and labor product warranty
   2. Approved device shall be the Extron NetPA 204 POE, part number 60-2047-01; no alternates or equals.