# Direct Stream DAC decoding ('playing') DXD 352 Khz
**URL:** https://forum.psaudio.com/t/direct-stream-dac-decoding-playing-dxd-352-khz/3935
**Category:** DACs
**Created:** [April 29, 2017, 7:30am UTC](https://forum.psaudio.com/t/direct-stream-dac-decoding-playing-dxd-352-khz/3935 "2017-04-29T07:30:50Z")
**Posts on this page:** 9
**Page:** 1
### Author:  [@Timequest](https://forum.psaudio.com/u/Timequest)
#### Post date: [April 29, 2017, 7:30am UTC](https://forum.psaudio.com/t/direct-stream-dac-decoding-playing-dxd-352-khz/3935/1 "2017-04-29T07:30:50Z")
Am I wrong to ‘assume’ that the DSD will play DXD 352? DXD is PCM so it should right? I want to download this great recording this morning but I wasn’t sure if I needed to go with the PCM 192, or if it’s fine to go with the DXD 352. . .??
Thanks.
\_Ben
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### Author:  [@tedsmith](https://forum.psaudio.com/u/tedsmith)
#### Post date: [April 29, 2017, 7:33am UTC](https://forum.psaudio.com/t/direct-stream-dac-decoding-playing-dxd-352-khz/3935/2 "2017-04-29T07:33:37Z")
The DS does 352.8k PCM / DXD over USB and I2S (but not the bridge, S/PDIF, AES/EBU or TOSLink.)
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### Author:  [@Timequest](https://forum.psaudio.com/u/Timequest)
#### Post date: [April 29, 2017, 7:45am UTC](https://forum.psaudio.com/t/direct-stream-dac-decoding-playing-dxd-352-khz/3935/3 "2017-04-29T07:45:41Z")
Thank you Ted. I always thought the Bridge / Bridge-II (was) an I2S interface??
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### Author:  [@tedsmith](https://forum.psaudio.com/u/tedsmith)
#### Post date: [April 29, 2017, 8:04am UTC](https://forum.psaudio.com/t/direct-stream-dac-decoding-playing-dxd-352-khz/3935/4 "2017-04-29T08:04:49Z")
Yep, the bridge to FPGA interface is I2S which does support higher sample rates, but it’s the CPU on the bridge that’s the bottleneck.
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### Author:  [@Timequest](https://forum.psaudio.com/u/Timequest)
#### Post date: [April 29, 2017, 8:31am UTC](https://forum.psaudio.com/t/direct-stream-dac-decoding-playing-dxd-352-khz/3935/5 "2017-04-29T08:31:02Z")
Ah. You learn something new every day!! Might that ‘bottleneck’ be the limiting factor that prevents the Bridge from supporting “double DSD?” I wonder if PSA has any plans to address this Bridge/CPU bottleneck. . .
Thanks again Ted. I appreciate all your feedback on the forum. Cheers.
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### Author:  [@Paul](https://forum.psaudio.com/u/Paul)
#### Post date: [April 30, 2017, 5:51am UTC](https://forum.psaudio.com/t/direct-stream-dac-decoding-playing-dxd-352-khz/3935/6 "2017-04-30T05:51:10Z")
We do, in a Bridge III but work on that has yet to even begin. Lots of planning and thinking but no actual work.
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### Author:  [@Elk](https://forum.psaudio.com/u/Elk)
#### Post date: [April 30, 2017, 7:07am UTC](https://forum.psaudio.com/t/direct-stream-dac-decoding-playing-dxd-352-khz/3935/7 "2017-04-30T07:07:40Z")
Yike. I hope the people that pay me do not come to realize thinking and planning is not actual work.
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### Author:  [@pmotz](https://forum.psaudio.com/u/pmotz)
#### Post date: [April 30, 2017, 2:30pm UTC](https://forum.psaudio.com/t/direct-stream-dac-decoding-playing-dxd-352-khz/3935/8 "2017-04-30T14:30:56Z")
Elk, I think there are a lot of people that fall in that category!
Paul, will Bridge III still be a slide-in module like Bridge I & II? I know at one time you were thinking of a separate box.
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### Author:  [@emailists](https://forum.psaudio.com/u/emailists)
#### Post date: [April 30, 2017, 6:02pm UTC](https://forum.psaudio.com/t/direct-stream-dac-decoding-playing-dxd-352-khz/3935/9 "2017-04-30T18:02:18Z")
I hope Biii has galvanic isolation and FPGA so it can be updated as new formats come out.