NX (2RU) Amplifier Firmware Notes:
----------------------------------

2.8 Production Release 03/21/2017
     - Added amp hardware version detection and auto-selecting current sensor scale.
     - Added software current meter averaging.
     - Fixed DSP boot-up error false message after flash reprogramming.
     - Fixed master clock detection/selection after changing hardware options.

2.7 Production Release 10/31/2016
     - Added mute LED and fault log indication when DSP mutes due to DSP usage overage.
     - Changed fault pin behavior to 1Hz heartbeat type.

2.6 Production Release 09/03/2015
     - Made response time for RD8C fader remote controller very fast.

2.5 Production Release 08/19/2015
     - Fixed correct factory reset input select when AES is installed.

2.4 Production Release 11/14/2014
     - Corrected storage of FIR's source file.
     - Corrected glitch on fault pins during power up.

2.3 Production Release 11/5/2014
     - Fixed output level jump when powering on with fader attenuators down.
     - Corrected Update Server problems (subscribers not being cleared, potential lock up during updates resolved).
     - Correctly saved attenuators in presets.

2.2 Production Release 9/25/2014
     - Added support for FIR filters.

2.1 Production Release 05/09/2014
     - Fixed bug which mutes outputs after factory reset with no options or DSP installed.

2.0 Production Release 05/09/2014
     - Fixed modes/options not working with Dante & fixed pop noises switching modes.

1.9 Production Release 12/14/2013
     - Retries for up to one second while trying to get Base I/O board's
       model number.  Previously, it tried this once and would occasionally fail.
     - First release of Dante support.

1.8 Production Release 9/26/2013
     - Added HPF card control, for network audio or AES option w/o DSP.

1.7 Production Release 9/05/2013
     - Fixed inadvertent faults when powering off.
     - Fixed pops/snaps when powering on.
     - Fixed Control Surface Aux output MUTE button functionality.
     - Fixed on-off-on-off line behavior when more than one instance of PneS connected.
     - Fixed amp channel mute, then power-off then on, then mute adjacent channel issue.

1.6 Production Release 7/23/2013
     - Software fix for flash-corruption-after-power-interruption problem.
     - Reduced rate of accessing RTC (~200Hz to more reasonable 1Hz).
     - Corrected Daylight Saving Time handling

1.5 Production Release 6/10/2013
     - Protection status bits now report correctly.
     - Fixed automixer to work with four inputs.
     - Make front-panel disable use OPT_STANDBY message.
     - Set default mixer routes so two channel amps are 1->1,3 / 2->2,4.

1.4 Preproduction Release 05/21/13
     - Automixer fixed.
     - Support for Cobranet and AES input options w/o DSP.
     - Protect status indicators to control software fixed.
     - Load impedance sweeping transient noises elliminated.

1.3 Preproduction Release 4/16/13
     - Fault LED fixes.
     - Prevents FBS on outputs.
     - Fixes full-amplitude signal inversion.