Twisted Pear Audio - Buffalo32S (ES9018 DAC) - Page 4

glt · 4th March 2009, 11:24 PM

Quote:

Originally posted by Russ White
Here it is, this is just the top side.

Very nice!. But don't see local regulators or voltage references for VD. I guess I'll have to wait for the schematics...

Beefy · 4th March 2009, 11:29 PM

Quote:

Originally posted by glt
Very nice!. But don't see local regulators or voltage references for VD. I guess I'll have to wait for the schematics...

To my noob eyes it looks like the power supplies might be buffered by ICs 4, 5 and 6. Regulators are probably under the board near those.

glt · 5th March 2009, 12:06 AM

Quote:

Originally posted by Beefy

To my noob eyes it looks like the power supplies might be buffered by ICs 4, 5 and 6. Regulators are probably under the board near those.

I was thinking it would be hard to do reflow soldering on both sides... (my common sense tells me that the components in the bottom will just fall off in the reflow over :-) )

Beefy · 5th March 2009, 12:11 AM

Entirely likely. Like I said, to my noob eyes

Russ White · 5th March 2009, 01:19 AM

Yes, there are components on both sides.

On the bottom side there are only passives.

Cheers!
Russ

dusfor99 · 5th March 2009, 05:01 AM

Hi Russ,

Nice looking board!. From the feedback I have been getting on the Sabre32, all your customers are going to blown away with the 32S. I hope to hear this design soon.

Dustin

sangram · 5th March 2009, 05:22 AM

Can't make out from the top layer, but how does the ESS chip get its VA supply now? Is it tapped off the VA supply from the IVY II supply, separately for each channel or something else?

And, there are a LOT more opamps, but no SE output. Eagerly awaiting more details.

fredlock · 5th March 2009, 05:31 AM

Russ,

what would be the estimated pricing on this Buffalo 32? No need to be exact but just a ballpark. Just want to set aside some money for it.

mravinsky · 5th March 2009, 10:13 AM

As I said I want board and parts to mount vreg (any version), but my e-mail was wrong. The good one is antoni.ferragut a.t. hotmail.es

BrianDonegan · 5th March 2009, 10:37 AM

Quote:

Originally posted by mravinsky
As I said I want board and parts to mount vreg (any version), but my e-mail was wrong. The good one is antoni.ferragut a.t. hotmail.es

http://twistedpearaudio.com/power/lcdps.aspx

5th March 2009, 01:19 AM	#35
Russ White diyAudio Member Join Date: Jan 2005 Location: Nashville, TN, USA	Yes, there are components on both sides. On the bottom side there are only passives. Cheers! Russ __________________ Less pulp more juice Twisted Pear Audio.

5th March 2009, 10:13 AM	#39
mravinsky diyAudio Member Join Date: Jan 2006 Location: Spain	vreg As I said I want board and parts to mount vreg (any version), but my e-mail was wrong. The good one is antoni.ferragut a.t. hotmail.es

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5th March 2009, 12:11 AM	#34
Beefy diyAudio Member Join Date: Apr 2008	Entirely likely. Like I said, to my noob eyes

5th March 2009, 05:01 AM	#36
dusfor99 diyAudio Member Join Date: Oct 2006	Hi Russ, Nice looking board!. From the feedback I have been getting on the Sabre32, all your customers are going to blown away with the 32S. I hope to hear this design soon. Dustin

5th March 2009, 05:22 AM	#37
sangram diyAudio Member Join Date: Sep 2002 Location: India	Can't make out from the top layer, but how does the ESS chip get its VA supply now? Is it tapped off the VA supply from the IVY II supply, separately for each channel or something else? And, there are a LOT more opamps, but no SE output. Eagerly awaiting more details.

5th March 2009, 05:31 AM	#38
fredlock diyAudio Member Join Date: Jan 2008	Russ, what would be the estimated pricing on this Buffalo 32? No need to be exact but just a ballpark. Just want to set aside some money for it.

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