The AES50 High Resolution Audio Recorder shall provide recording and playback of up to ninety-six (96) simultaneous channels of 24-bit resolution digital audio, via a dualredundant four (4) port AES50 digital audio interface in a standard 5U high 19” rack mount chassis.

The AES50 High Resolution Audio Recorder shall include GUI software for use with a conventional VGA-equipped monitor and USB-equipped keyboard and mouse. There shall be provision for two (2) VGA ports and two (2) Type A USB ports on the on the rear panel and two (2) Type A USB ports on the on the front panel for this purpose. The available USB ports may be used for such functions as software updates and data archiving.

The AES50 High Resolution Audio Recorder shall have two (2) internal hard drives capable of a minimum of nine hours recording time. Additionally The AES50 High Resolution Audio Recorder shall provide two FireWire 800 and two eSATA ports to allow up to two external hard drives to be connected to allow simultaneous identical mirrored recordings to be made. Each internal hard drive and external hard drive interface shall have associated green and red status LEDs.

Each of the ninety-six channels shall have a corresponding four (4) segment LED bargraph meter located on the front panel of the high resolution audio recorder, with indication for ‘CLIP’, ‘- 6 dBFS’, ‘-18 dBFS’ and ‘SIGNAL’. Additionally, each channel shall also have a yellow ‘SOLO’ LED and a red ‘ARM/REC’ LED also on the front panel, to indicate when the channel is being soloed and/or armed for recording or is currently recording.

The front panel shall be arranged to divide the bargraphs and solo and record status LEDs into four rows of 24 channels, each row corresponding to one of the dual-redundant AES50 ports. Each row shall have an illuminated Select button to allow a zoom function in the associated GUI software. Each row shall also have a green and a red LED to show the status for each of the connected AES50 ports.

The AES50 High Resolution Audio Recorder shall have a console-style solo bus to allow the monitoring of audio recording and playback, with an associated ‘Solo’ enable switch and a rotary control to enable the selection of individual channels. The output of the solo bus shall be connected to a headphone amplifier with a rotary level control (adjustable from -∞ to +10dB) and a ¼” headphone socket located on the front panel.

The AES50 High Resolution Audio Recorder shall have an eight (8) digit LED seven-segment display showing Elapsed or Remaining Time or LTC time code. An illuminated pushbutton switch associated with the time display shall be used to select between the three options, which shall each have an associated status LED which will illuminate when that mode is selected. A three-pin XLR socket shall be provided on the rear panel for an LTC input, for use when the LTC mode is selected.

The AES50 High Resolution Audio Recorder shall have three illuminated transport switches on the front panel for ‘PLAY’, ‘STOP’ and ‘RECORD’. These transport switches shall duplicate the respective functions in the GUI software. The AES50 High Resolution Audio Recorder shall also have the ability to set markers whilst recording, an illuminated ‘SET’ switch and ¼” Tip-Sleeve jack socket (for an external footswitch) shall be provided to set a marker on the recording timeline when the ‘SET’ switch or the external footswitch is pressed. The unit shall be capable of operating from a 100 to 240V ±10%, 50 to 60Hz AC power source.

The AES50 High Resolution Audio Recorder shall be the Klark Teknik DN9696 and no alternative option is available.

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