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s/pdif 4 input board surely has components to connect to BIIIse
Rank: Member
Groups: Member
Joined: 4/30/2012(UTC) Posts: 9 Location: Bedfordshire
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After a recent decision to go 2-way active, I have ended up with a Buffalo III, a Buffalo IIIse and an un-built s/pdif 4 input board. The multi-output soundcard I am getting (Lynx AES 16e) has multiple AES/EBU outputs and I plan to use 2 of these outputs for TTL inputs to my 2 Buffalo III's. I am currently feeding the Buff III with a stereo signal from a Toslink input module.
For the IIIse, the integration guide says about using 'a 1:1 transformer plus voltage divider or a 2:1 transformer plus a DC blocking cap at the primary'. Seeing as I have 4 1:1 transformers and various other components in the s/pdif 4 input kit, can I get a suitable TTL input for the IIIse and will this same format work for the III?
As far as I can follow on the s/pdif board, the input uses C5 in series with the primary of T1, then there is a voltage divider across the secondary with resistors RS1 and R1. Surely this forms a basis for a suitable signal - do I need any more components than this?
Finally, is it even possible that I could get away with just using a voltage divider, as the outputs of the soundcard are said to be transformer coupled, although I don't yet know if there is an earthed centre-tap?
Any help would be much appreciated.
Simon
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Rank: Administration
Groups: Administration, Customer Joined: 10/24/2006(UTC) Posts: 3,979 Location: Nashville, TN
Thanks: 25 times Was thanked: 89 time(s) in 83 post(s)
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I would try the simplest thing first. :) Just a voltage divider.
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Rank: Member
Groups: Member
Joined: 4/30/2012(UTC) Posts: 9 Location: Bedfordshire
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Thanks Russ - I like simple solutions!
I'll have a play with other combinations as well, to make sure the voltage divider isn't causing any issues.
Also, I'd like to say thanks for your awesome products - I've never had so much fun with my hifi!
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Twisted Pear Audio Support
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S/PDIF 4:1 MUX/Receiver
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s/pdif 4 input board surely has components to connect to BIIIse
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