Specifications
6
have to return your Power DAC to MSB for reprogramming. MSB will charge you a small fee for this service. If you have acciden-
tally loaded rmware that you do not wish to have on your Power DAC do not try to cancel it while it is loading, simply wait for the
update to complete and then load the rmware you do wish to have in your Power DAC.
Step One, Verify Your Equipment Compatibility - To successfully load your new Firmware you must have your Power DAC connected to
a transport that will not change the DATA. Almost all CD Players are acceptable however there are some exceptions. Upsampling CD
transports will not work; this includes the drive internal to the older MSB Reference CD Player and Reference CD Station 2. To load
a rmware le to these machines you will have to connect your Power DAC to another source to load the rmware. The Upsampling
drives are ne for playing audio after the upload however. DVD players should work ne when they are congured in a mode that does
not affect the Data such as CD pass-through mode when connected to their s/pdif digital output.
Step Two, Burn the CD - When burning a CD containing the new rmware you must burn the WAVE audio le directly to a CD without
rst converting it to another audio format such as MP3. Converting the WAVE le to another format will destroy the careful formatting
which allows DSP to load its new Firmware directly from a CD. You cannot however corrupt the Firmware in a way that will allow
it to load incorrect software. The rmware update le is protected by powerful error detection and encryption that will not allow a
damaged le to be loaded into the DSP. A corrupted or damaged rmware CD will simply be rejected by the DSP and fail to load the
new software.
Step Three, Play the CD - To ensure a proper load of the rmware you must remember to disable any digital processing before the 16x
Digital Filter. This includes turning off any processing in DVD players or upsampling in CD players. If the Filter Load Fails (the
equipment is not compatible or the track is not played trough the MSB 16x Digital Filter) the track containing the new rmware will
play a short very quiet noise burst followed by a Firmware Update Failed message. A successful load will just be a 20-30 second silence
followed by a New Firmware Conformation message. The new rmware is running at this point, you do not have to restart your Power
DAC to enable the new features.
Step Four, Enjoy Your New Features - Custom Firmware permanently changes the software running on your DSP. This change occurs
immediately following a rmware update. You do not need to reset or power off your Power DAC. Powering the unit off after a rmware
update will load the new software on power-up, the old software was completely erased. If you are not happy with your new rmware
simply load your old rmware using the instructions above.
Clock Interface (advanced users)
On the back of the unit is a special 5 pin XLR type connector. It is a clock interface that allows multiple Power DAC products to be
synchronized, allows the Power DAC Clock to be output and allows an external clock to be input to the Power DAC. The interface is a
LVDS format clock interface with a signal level of 250 mV pp input or output requirement.
Pin Identication - The pins shown in the gure above are identied as follows:
1. Ground
2. Clock Select (OPEN = Master Clock Output, LOW = Master Clock Input)
3. M Clock + (Positive side of balanced Master Clock)
4. M Clock - (Negative side of balanced Master Clock)
5. DSP Ready for Networking (OPEN = OK to Run, LOW = Stop, not ready)
Clock Frequencies - By toggling the Clock Select line clocks can either be input or output. The output frequencies are as follows:
· 44.1, 88.2 or 176.4 kHz sampling frequency source outputs a clock frequency of 22.5792 MHz
· 48, 96 or 192 kHz sampling frequency source outputs a clock frequency of 24.576 MHz
The input frequency requirements are as follows:
· 44.1 kHz source will accept a 11.2896 or 22.5792 MHz input
· 48 kHz source will accept a 12.2880 or 24.576 MHz input
· 88.2 or 176.4 kHz source will accept a 22.5792 MHz input
· 96 or 192 kHz source will accept a 24.576 MHz input
· 384 kHz source will accept a 24.576 MHz input
· 352.8 kHz source will accept a 22.5792 MHz input