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Old 10th November 2012, 06:21 PM   #101
LeonvB is offline LeonvB  Netherlands
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If your drive has TTL level out, you can connect it directly to a BIII-series board, that is correct.
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Old 10th November 2012, 06:30 PM   #102
manudrz is offline manudrz  France
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I'll try it, would be great if it could bypass a double-conversion. Thanks
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Old 11th November 2012, 12:31 AM   #103
lhquam is offline lhquam  United States
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Does the S/PDIF input require an isolation transformer to deal with ground loop issues?
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Old 11th November 2012, 01:56 AM   #104
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Can the BIIISE controller work with a BII for volume control? I have two use cases, first for a four channel setup and second for a dual mono setup? If I had a multichannel I2S source like the exadevices USB or eventual Twisted Pear USB board, would there be any complications using these two different version together for either use case? I am considering an upgrade or addition and am trying to figure out whether to keep the BII and add a BIISE or whether it would be better to use only the BIII products together.
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Old 11th November 2012, 03:19 AM   #105
i2k92 is offline i2k92  Indonesia
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I'm very interested, but I have some dumb questions :
SPDIF input, can I simply connect it to a BNC/RCA connector to be connected by coax to CD player ?
For SPDIF/I2S input switch, what type : momentary or non momentary ?
Can it accept I2S from CM6631 USB interface like this one :CM6631 24bit 192kHz USB to Coaxial and Optical Fiber Board New Version | eBay

I all the above are yes, so what I need :
Buffalo III board with trident regs
IVY / Legato or other balanced to unbalanced converter
regulated power supply to power Buffalo III board

Am I correct ?
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Old 11th November 2012, 08:22 AM   #106
LeonvB is offline LeonvB  Netherlands
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Quote:
Originally Posted by i2k92 View Post
I'm very interested, but I have some dumb questions :
SPDIF input, can I simply connect it to a BNC/RCA connector to be connected by coax to CD player ?
For SPDIF/I2S input switch, what type : momentary or non momentary ?
Can it accept I2S from CM6631 USB interface like this one :CM6631 24bit 192kHz USB to Coaxial and Optical Fiber Board New Version | eBay

I all the above are yes, so what I need :
Buffalo III board with trident regs
IVY / Legato or other balanced to unbalanced converter
regulated power supply to power Buffalo III board

Am I correct ?
In order:
- yes
- non-momentary: you need to pull the contact to ground for the other input to work
- likely, but do remember there are many variables in I2S signal configuration. Fi. in some cases you might need a microcontroller to change the alignment.
- You need to add a bi-polar PSU for the I/V stage.
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Old 11th November 2012, 10:06 AM   #107
i2k92 is offline i2k92  Indonesia
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Quote:
Originally Posted by LeonvB View Post
In order:
- yes
- non-momentary: you need to pull the contact to ground for the other input to work
- likely, but do remember there are many variables in I2S signal configuration. Fi. in some cases you might need a microcontroller to change the alignment.
- You need to add a bi-polar PSU for the I/V stage.
Thanks Leon. I already have John Broskie's BCF. As Buffalo III SE can be configured as Vout, I don't need other analog output stage, right ? I just want to re-use what I already have.

How about this USB interface : http://www.ebay.com/itm/24bit-192kHz...item4d0644e5ae
(there's a spec of it's I2S output on the bottom of the page)

Last edited by i2k92; 11th November 2012 at 10:09 AM.
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Old 11th November 2012, 01:14 PM   #108
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Quote:
Originally Posted by lhquam View Post
Does the S/PDIF input require an isolation transformer to deal with ground loop issues?
Not at all, but you can add one if you like.
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Old 11th November 2012, 01:16 PM   #109
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Quote:
Originally Posted by reactivepower View Post
Can the BIIISE controller work with a BII for volume control? I have two use cases, first for a four channel setup and second for a dual mono setup? If I had a multichannel I2S source like the exadevices USB or eventual Twisted Pear USB board, would there be any complications using these two different version together for either use case? I am considering an upgrade or addition and am trying to figure out whether to keep the BII and add a BIISE or whether it would be better to use only the BIII products together.
You would want to control them separately. The best way would be custom firmware.
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Old 11th November 2012, 01:17 PM   #110
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Quote:
Originally Posted by i2k92 View Post
Thanks Leon. I already have John Broskie's BCF. As Buffalo III SE can be configured as Vout, I don't need other analog output stage, right ? I just want to re-use what I already have.

How about this USB interface : 24bit 192kHz USB to I2S SPDIF PCB CM6631 with Ultralow Noise 6 5UV Regulator | eBay
(there's a spec of it's I2S output on the bottom of the page)
You can use the DAC VOUT, just be careful. You will likely want to AC couple.
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