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Old 25th September 2012, 02:35 PM   #571
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I've tried without connecting Gnd pin and I could confirm that, in my case, it need to be connected.
Terrible & persistent "Hum" appear when unconnected
Can't go further my experiment, my old test laptop can't provide enough power to the USB device
The device in well recognised in W7/64 with Amanero's drivers.

I was using another DAC for which MCLK use was necessary (WM8740/41)
My ES9023 has got a WM8804, not configured in I2S mode.

Last edited by korben69; 25th September 2012 at 02:38 PM.
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Old 25th September 2012, 02:38 PM   #572
Ryssen is offline Ryssen  Sweden
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Originally Posted by GaryB View Post
I've now gotten my DAC + JG style buffer cased up and more or less completed. I housed it in a Hammond cast aluminum box, approximately 220mm x 145mm x 50mm. I managed to scrounge up some 1uf 50v BG NX and 100uf 6.3 BG N caps, so I included those in the build. The sound continues to impress me - kudos to JP and Subu. I like the sound slightly better with the JG buffer but there is a lot more cost and work associated with building it this way. One needs an extra transformer and power supply and nearly twice as much room. But the resulting DAC still is reasonably compact and I think it's worth the effort.
---Gary
Where did you get those Black Gates?
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Old 25th September 2012, 02:52 PM   #573
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Originally Posted by syklab View Post
I am going to use the Amanero USB to I2S interface just need to figure how to switch between different I2S sources.

USB to I2S 384Khz - DSD Converter
Coincidentally, I just found this thread... Is it what you're looking for?

Introducing OTTO2

Darp
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Old 25th September 2012, 03:02 PM   #574
GaryB is offline GaryB  United States
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Originally Posted by samoloko View Post
have heard that BG N don't love bypass - have you tried to remove smd bypasses - or completely new 1 uF MKP cap
No - I haven't tried removing the 1uf SMD cap - C12, but it's a good idea. The DAC is sounding good enough that I'm not really motivated to take it apart and try this. But it's definitely something to try for the next one.

---Gary
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Old 25th September 2012, 03:06 PM   #575
GaryB is offline GaryB  United States
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Originally Posted by Ryssen View Post
Where did you get those Black Gates?
Several people have asked that question. I have a small stash of BG caps that I bought a few years ago when prices were high as opposed to really, really high. Unfortunately, I don't have enough to help everyone who wants to try them out on this DAC. The 100uf 6.3v cap BG N was left over from an old project and the 1uf 50v BG NX was NOS.

It sounds like JP has some alternatives in mind that he likes for the V3 board, so stay tuned for his recommendations.

---Gary
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Old 25th September 2012, 03:21 PM   #576
syklab is online now syklab  Hong Kong
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Originally Posted by DarpMalone View Post
Coincidentally, I just found this thread... Is it what you're looking for?

Introducing OTTO2

Darp
Hi Darp,
Thank you, This is what I am looking for and I will order one to try. According to Russ that it can be used to switch s/Pdif and even audio.
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Old 25th September 2012, 03:26 PM   #577
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Quote:
Originally Posted by GaryB View Post
Several people have asked that question. I have a small stash of BG caps that I bought a few years ago when prices were high as opposed to really, really high. Unfortunately, I don't have enough to help everyone who wants to try them out on this DAC. The 100uf 6.3v cap BG N was left over from an old project and the 1uf 50v BG NX was NOS.

It sounds like JP has some alternatives in mind that he likes for the V3 board, so stay tuned for his recommendations.

---Gary
Jean-Paul & Subbu are cooking an improved V3, not only gold palted
I think they'll give some good advices about BG caps replacement.

If you can't wait improving your V2.6, some values are still available here : Capacitors_Electrolytic_Black Gate
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Old 26th September 2012, 09:41 PM   #578
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Originally Posted by korben69 View Post
Jean-Paul & Subbu are cooking an improved V3, not only gold palted
I think they'll give some good advices about BG caps replacement.

If you can't wait improving your V2.6, some values are still available here : Capacitors_Electrolytic_Black Gate
Erratum : were available... Seems that it's not the case right now.
But : Jean-Paul & Subbu are cooking us a very good alternative to unaffordable BlackGate's...
Let's see what will be offered soon
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Old 27th September 2012, 10:51 PM   #579
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Default p2p subu dac in synch mode

I built this subu dac in p 2 p. I didn't think I would succeed but amazingly, it does sound lovely. Only change from BOM is the muse caps and, of course, the synch clock. The muse make the sound a little too bright on the highs.

Nonetheless, I learned a lot with this project. Just want to ask (again) the designers if they can have a provision for sync clock in the next version. Something like what the B3 provides.

Thanks for this great and easy to build dac.

aPTPsubu1.jpg

aptpsubu5.jpg

aptpsubu7.jpg
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Old 28th September 2012, 07:07 AM   #580
grufti is offline grufti  United States
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I second necplusultra's request for a sync[h] clock option for V3.

I also prefer much smaller edge connectors.
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