not really helpful for the hosa box, but i can tell you the jb3 is really fussy about split optical signals, fwiw.
Just posting a follow-up on this. I stuck my neck out on this and bought one ($55 w/ shipping) to try it out.
Just tested it out a few min. ago and it sucessfully passed optical signals through both output transmitters. Tested on the following device combinations so far:
Sucessful Test 1:
CDRW home deck > optical > ODY314 > optical >...
ODY314 out 1 > optical > MD home deck
ODY314 out 2 > optical > NJB3
(Tested set up w/ both AC plug 9v 50ma and DC Batt. 9v 50ma tip positive - Rat Shack type B tip)
Sucessful Test 2:
CDRW home deck > optical > ODY314 > optical >...
ODY314 out 1 > optical > M- Audio Transit > USB > iBook G3/600
ODY314 out 2 > optical > NJB3
(Tested set up w/ both AC plug 9v 50ma and DC Batt. 9v 50ma tip positive - Rat Shack type B tip)
Sucessful Test 3:
CDRW home deck > optical > ODY314 > optical >...
ODY314 out 1 > optical > MD portable
ODY314 out 2 > optical > NJB3
(Tested set up w/ both AC plug 9v 50ma and DC Batt. 9v 50ma tip positive - Rat Shack type B tip)
Recording a local band tonight to further test it for field applications. Says it only draws 9v 50ma, doubtful that it will fail on-site tonight.
-Kevin