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Old 21st August 2011, 01:27 PM   #1531
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Old 21st August 2011, 03:50 PM   #1532
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Thanks Brian, I've bought the tridents.
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Old 21st August 2011, 04:52 PM   #1533
joemana is offline joemana  United States
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[QUOTE=kotani;2679231]I own a 80mhz buffalo as well, and all songs up to 192khz play fine through the exadebice usb interface, but above that, I get the same white noise issue when stopped or paused.

Try to replace the firmware, it only cost $2.

Joe
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Old 22nd August 2011, 01:47 AM   #1534
glt is offline glt  United States
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[QUOTE=joemana;2680393]
Quote:
Originally Posted by kotani View Post
I own a 80mhz buffalo as well, and all songs up to 192khz play fine through the exadebice usb interface, but above that, I get the same white noise issue when stopped or paused.

Try to replace the firmware, it only cost $2.

Joe
The alternative firmware is to use a wider DPLL bandwidth. Unfortunately, that does not solve the white noise issue...
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Old 22nd August 2011, 02:06 AM   #1535
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There are two thing you can do about the issue with your particular source:

1) Use a better source.
2) Change the clock (either to a faster one or a synchronous one)
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Old 22nd August 2011, 04:06 AM   #1536
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Default Russ...

Quote:
Originally Posted by Russ White View Post
There are two thing you can do about the issue with your particular source:

1) Use a better source.
2) Change the clock (either to a faster one or a synchronous one)
speaking of #1: hope that you are considering the new CCHD-957s for that "better source", and perhaps Trident(s) to power them... Expensive, but probably worth it... Would make for great synchronous clocking perhaps... please no need to respond, I am sure you have thought of all this, and more, already...
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Old 22nd August 2011, 07:24 AM   #1537
glt is offline glt  United States
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Default Partial workaround

I found a partial workaround for the white noise problem under silence (for 352.8K material and 80MHz Buffalo)

Enabling the automute loopback feature in the chip will shorten the noise to an "impulse". So during pause, stop or during the gap, you will hear a short "impulse" of white noise (fraction of a second) rather than continuous white noise.

I'll play with other parameters to see if I can further shorten the noise.
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Old 23rd August 2011, 07:33 AM   #1538
kotani is offline kotani  Japan
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Quote:
Originally Posted by Russ White View Post
There are two thing you can do about the issue with your particular source:

1) Use a better source.
2) Change the clock (either to a faster one or a synchronous one)
Would I be able to buy just the custom 100mhz clock from you guys?

I would need two, as I am running dual mono...
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Old 24th August 2011, 02:17 AM   #1539
pfdavid is offline pfdavid  United States
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Default BII drop-outs

Help: I'm still getting drop-outs from my BII system. I've tried a bunch of different approaches and I'm still getting the occasional hickup, averaging 1/minute. Although sometimes a whole song (3 min) will play cleanly, other times I'll get 3 drops within 15 seconds.

I assembled my BII about 2 months ago using all TPA components: USB receiver/DAC into a BII via I2S, BII into a Legato 3 I/V stage. Placid for the BII, Placid HD for the Legato. AC via the recommended toroidal transformers. A few weeks ago I installed the Firmware Update chip for the BII.

Following Leon vB's excellent integration guide and the other manuals, everything fired up smoothly, yielding wonderful sound, really much better than I expected. So now that it is so, so good, I want it to be perfect.

I started with this Mac PowerBook G4 with Itunes, then I installed COG, then I tried my girlfriends Intel Mac laptop using Itunes, then Audirvana. Switched USB cables. No difference.

I've attached a photo of the assembly. I tried to make the I2S connections equal length: they are about 3 inches long.

I have not tried switching to S/PDIF between the USB receiver and the BII, yet.

I would appreciate any suggestions or corrections to my build.

Thanks very much, - David
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Old 24th August 2011, 05:53 AM   #1540
glt is offline glt  United States
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Quote:
Originally Posted by pfdavid View Post
... A few weeks ago I installed the Firmware Update chip for the BII.

...

I would appreciate any suggestions or corrections to my build.

Thanks very much, - David
Do you mean you installed this:

"High Bandwidth" Firmware for Buffalo-II
Alternate firmware chip for B-II users experiencing lock issues with some particular I2S sources.

How does it work with the original firmware?

[Note: let the DAC warm up 30 minutes after power on before you do your observations]
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