Twisted Pear Audio - Buffalo32S (ES9018 DAC)

[Russ White]

It is up now.

Sorry for the delay.

Cheers!
Russ

 

[Russ White]

Totally off topic, but some of you may be interested:

http://www.diyaudio.com/forums/showthread.php?t=152803

 

[acidbrain]

Okay, I read the complete topic of the buf32 and I have a few (nooby )
questions :

-For the power supply I could use 1 Placid powesupply for digital section and 1 bipolair version for the analog section ?

-would the digital section with it's own onboard regulators benefit from the placid or should I change them to shunt types ? ( I still have a few Dexa regulators)

- The analog stage has no onboard regulators ?
- Opamps are used for the I/V(?), why not discrete parts in class A mode, is this working better ?

-I have interest in buying this cd transport :
http://us.hifidiy.net/Article.asp?ArticleId=213
any comments ?

Thanks in advance ! Erik.

 

[poseidonsvoice]

Hi guys,

Saw this on the Audiocircle forum. Didn't know if Gary Dodd had built up the 24 bit version or the current 32 bit.

Interesting twist on it though, with the battery ...

Anand.

 

[NicMac]

-For the power supply I could use 1 Placid powesupply for digital section and 1 bipolair version for the analog section ?

Yes. Extremists might consider two Placid BP for the analog section.

-would the digital section with it's own onboard regulators benefit from the placid or should I change them to shunt types ? ( I still have a few Dexa regulators)

Have a look at the Tweaking Buffalo thread. First thing to try would be leave the on-board regs alone and use the Placid.

- The analog stage has no onboard regulators ?
- Opamps are used for the I/V(?), why not discrete parts in class A mode, is this working better ?

Wait for a tweakers version if you don't like op amp's.

-I have interest in buying this cd transport :
http://us.hifidiy.net/Article.asp?ArticleId=213
any comments ?

Looks interesting!

 

[acidbrain]

interested ?

 

[ppapcro]

Hi Russ,

Is the Tweaker's board still in the pipeline?

 

[lindamar]

Hi Russ,

I guess there are many of us wishing that wonderful Tweaker's board... any news would be great !!

 

[Russ White]

Hey guys.

I am working on it. I redid the layout for 4 layers. And added some options around the clock.

I also added some coolness around AVCC.

Its just harder to find layout time these days with the new job.

I do plan on ordering PCBs in the coming weeks.

I am sorry for the delay, but the board will be better for it.

Cheers!
Russ

 

[lindamar]

Thank you so much Russ, we look forward to it !!

best regards,
Pepe

 

[harrylime6]

Buffalo 32S Battery Powered Photo

Hope I'm in the right spot to post this photo. In any event, here is a photo of my battery powered Buffalo 32S DAC.
The units flanking the 32S are (Sorry Russ & Brian) Non-Twisted Pear Amplifiers.

 

[TheShaman]

Buffalo 32S directly feeding Hypex(?) amps. A killer combo! Good job!

 

[NicMac]

The Buffalo 32S / Hypex combination is truly great! I'm also using it this way.
Nic

 

[acidbrain]

Buffalo32s /volumite are out of stock for me, for Russ.

 

[BrianDonegan]

We are out of Buffalo32s. I will have more Volumite boards by the end of the week.

 

[TheShaman]

We are out of Buffalo32s.

What's the ETA on the next batch?

 

[acidbrain]

there is a rumour that the new boards will have a pink colour. This according to the result of "the latest poll" subject "what favourite colour will your next board have".

 

[Russ White]

A couple facts about the new Board:

1) 8 separate pluggable VREGs
2) Seperate output stage(s)
3) Some reworking of the supply routing for better RF isolation.

Otherwise its very similar to the Bufallo32S.

I am working hard to get it done soon.

There are actually three new modules I need to design to support this effort.

1) The DAC itself.
2) Some cool little VREGs(More about this later).
3) IVY II - This is actually done but being reworked to better fit a possible new form factor.

Also Counterpoint II is in the works.

And the very remote possibility of a tube output stage for a little fun.

Cheers!
Russ

 

[harrylime6]

Oooh - tube output stage.
I look forward to that.
-harry

 

[Woodenhead]

A couple facts about the new Board:

1) 8 separate pluggable VREGs
2) Seperate output stage(s)
3) Some reworking of the supply routing for better RF isolation.

Otherwise its very similar to the Bufallo32S.

I am working hard to get it done soon.

There are actually three new modules I need to design to support this effort.

1) The DAC itself.
2) Some cool little VREGs(More about this later).
3) IVY II - This is actually done but being reworked to better fit a possible new form factor.

Also Counterpoint II is in the works.

And the very remote possibility of a tube output stage for a little fun.

Cheers!
Russ

Is this in reference to the tweakers board, or to a new version of the 'standard' B32S board?