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Old 8th September 2011, 11:58 AM   #531
Bunpei is offline Bunpei  Japan
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Default Stacking two BII or BIII board

I received multiple BIII board kits and looked at bare boards with neither pin headers nor terminal blocks. This looks very flat.
The impression gave me a such idea of "Stacking two BIII boards in a vertical direction and making DAC chip +, - outputs in parallel for a simple stereo configuration with just one I/V module."
This combination would bring 8 DAC output sections for each L/R channel.

Has anyone experimented this configuration and compared with a conventional dual mono?

Last edited by Bunpei; 8th September 2011 at 12:01 PM.
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Old 8th September 2011, 01:12 PM   #532
Russ White is online now Russ White  United States
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It should work just fine (though i have not tried it exactly like you say). This would not be dual mono, but would be stereo with 8 DACs in parallel.

I am not sure I would feel compelled to do so.

You will also need to think about DAC addresses etc, you would want special firmware for that.

I would say give it try if you feel like it.

Just keep in mind power requirements and the fact that your I/V stage will have double the output swing unless you adjust it.
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Old 8th September 2011, 03:28 PM   #533
rx7mark is offline rx7mark  United States
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Bunpei,
Take a look at this thread about using 2 BII's with a single Legato. This should work the same for 2 BIII's with a single Legato, with the only new issue being the proposed stacking.

Buffallo Dual Mono 1 Legato

Mark
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Old 8th September 2011, 05:23 PM   #534
glt is offline glt  United States
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Quote:
Originally Posted by Russ White View Post
It should work just fine (though i have not tried it exactly like you say). This would not be dual mono, but would be stereo with 8 DACs in parallel.

...
Would variations in the AVCC module be an issue?
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Old 8th September 2011, 06:08 PM   #535
Russ White is online now Russ White  United States
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No because they would sum, wouldn't matter in the least.
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Old 8th September 2011, 10:22 PM   #536
marcinpoz1qaz is offline marcinpoz1qaz  Poland
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Originally Posted by BrianDonegan View Post
There will be a single S/PDIF module sometime soon. Basically a single channel of the 4-Input module (trafo, comparator, etc).
Hello, Brian. Can you tell me when a single S/PDIF module will be available? Thank you.

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Old 9th September 2011, 01:47 PM   #537
AndriyOL is offline AndriyOL  Ukraine
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Hi Russ,

Could you equip BIII boards ordered 03.09.2011 with new Crystek CCHD-575 devices?

Regards.
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Old 9th September 2011, 10:53 PM   #538
Russ White is online now Russ White  United States
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Hi Russ,

Could you equip BIII boards ordered 03.09.2011 with new Crystek CCHD-575 devices?

Regards.
We are still evaluating that clock. Even if we were ready to use them Crystek is not making them in the quantity we need yet. Plus those modules are already built. So the short answer is no.
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Old 9th September 2011, 10:54 PM   #539
BrianDonegan is offline BrianDonegan  United States
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Buffalo III - flexibility without compromise.
Quote:
Originally Posted by marcinpoz1qaz View Post
Hello, Brian. Can you tell me when a single S/PDIF module will be available? Thank you.
Not sure yet. The boards have not been submitted for mfg yet.
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Old 9th September 2011, 11:13 PM   #540
Russ White is online now Russ White  United States
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Originally Posted by marcinpoz1qaz View Post
Hello, Brian. Can you tell me when a single S/PDIF module will be available? Thank you.
In the next month or so. I am planning on ordering them soon, then we just need to give them a quick test.
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