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Hi, I've been tinkering with the usage of my opus dac in my car. It's been a work in progress for a while now, but it is actually working well and sounds fantastic in it's present form. But I like to experiment and I've thought of changing my current setup Due to parts available on hand, I am currently running SPDIF -> 2x DAC boards (running in stereo split three ways using a 2-way splitter on the second board's rca outputs) -> passive crossover -> amp My aim is to have three sets of buffered/filtered SE outputs, with the capability to switch to balanced output in the future. Naturally, the ballsie fits the bill; my question is how to implement it. Would a dual-mono set of dac boards connected to three ballsies powered by one LCBPS work? Or am I overthinking it, and one ballsie would be enough to split three ways? I have a third DAC board spare that I threw into the dac stack to get three outputs, but after hooking up a third board into the stack the sound became a garbled mess of static-y noise with a very faint sound of the music in the background. I asked about this on the diyaudio thread and it was suggested that it might be a short so I did some checking with my multimeter and it looked like there wasn't a short. I substituded that board into my original two board stack and it worked fine, leading me to believe that the I2S signal doesn't particularly like me to have a three way split of it :) Also, what input voltage does the LCBPS need? Thank you for your time and patience! Ben Edited by user Wednesday, December 26, 2007 11:08:04 PM(UTC)
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Hi Ben. You should be able to use just one ballsie without any trouble at all. There would be little if any benefit to using three, and it would take a lot more space. :)
The digital inputs of the Opus represent a capacitive load, so yes there is a limit to how many you can connect to a single receiver without using some sort of buffer.
Cheers!
Russ
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Rank: Advanced Member
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Glad to hear a single ballsie will work just fine! On a different note, what would you reccomend for a remote volume adjustment solution? I was hoping to use a JT setup, but you don't have any of those in stock and probably won't until the next version gets finished from what I've read? 
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You will need a split rail supply for the ballsie, not sure how you will get that in your car unless you use an SMPS.
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Rank: Advanced Member
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Joined: 7/30/2007(UTC)
Posts: 31
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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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Yep, should work just fine. :)
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