So I have built two dual mono buffalo IIs.
Buffalo II #1 (Built for my friend. After I heard it I built one for myself.):
Dual mono Buffalo IIs one is 80 MHz and one is 100 MHz with Tridents and Newest AVCCs
Dual IVY III
Balsie Lite
4:1 Mux/Demux (3 TOSLINK Modules, 1 Coaxial)
Sigma 22, Sigma 11, and Epsilon 24/Sigma 24 PSUs

When feeding the toslinks with 192/24 the 80 MHz Buffalo II cannot hold lock but 100 Mhz works perfectly.
Why is the 80 MHz losing lock when the 100 Mhz is fine?
What can be done to fix this?
We have tried the "High Bandwidth" Firmware for Buffalo-II.
We have tried swapping toslinks.
Tried multiple sources.
I know the toslink is only supposed to support 96 KHz but I have another Buffalo II with both 100 MHz crystals and it can take 192 KHz thru the toslinks no problem.


Buffalo II #2 (My Buffallo II):
Dual mono Buffalo IIs both 100 MHz with Tridents
Dual IVY III
Balsie Lite
S/PDIF 4:1 MUX/Receiver (2 TOSLINK Modules, 1 Coaxial, 1 AES) feeding dac with spidif.
Sigma 22, Sigma 11, and Epsilon 24/Sigma 24 PSUs