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Twisted Pear Buffalo Sabre DAC - Page 13

post #181 of 1283
6/27/08 at 11:15pm
Thread Starter 
Quote:
Originally Posted by luvdunhill View Post
any idea how small of an enclosure you could cram a buffalo into?

I think you could fit one in a horse trailer, well a small Buffalo though...
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post #182 of 1283
6/28/08 at 9:36am
Quote:
Originally Posted by Beefy View Post
Is that a genuine question, or just prompting me to try something smaller?

I've seen Brian's OPUS layout that puts everything into a single Hammond 1455T2201...... but that was only possible since he was running a single LCDPS from one transformer, and driving the XLR outputs direct from the OPUS board. But I absolutely need unbalanced and don't want to sacrifice any performance by running the Buffalo in voltage output, so at a minimum I need two power supplies and two boards.

Now I probably still don't need a 19" wide case for this...... but my rationale is that I can also buy 2U and 3U models in the exact same footprint which will easily fit a 3 or 4 channel B22.
I was wondering the same thing. A rack unit just seems un-necessarily big for a project like this. Can any one clue me in on what a fair amount of distance is, when placing the transformer and psu boards in the case?.. if at all?
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post #183 of 1283
6/28/08 at 10:18am
Quote:
Originally Posted by JamesL View Post
I was wondering the same thing. A rack unit just seems un-necessarily big for a project like this. Can any one clue me in on what a fair amount of distance is, when placing the transformer and psu boards in the case?.. if at all?
The PS boards are not the issue. You want the power runs to be short and strait if you can. The transformers can be an issue but anything >4 inches will help. Some people here have had issues with the distance or even position but you may want to try it for yourself. You could also do an external PSU.
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post #184 of 1283
6/28/08 at 10:53am
Quote:
Originally Posted by JamesL View Post
A rack unit just seems un-necessarily big for a project like this.
The rack unit I am looking at is only 250mm deep, not full size. And being only 1U, it will sit very nicely under my MMM and σ11 without getting in the way at all.

And like I said, if I ever build a β22, it will be perfect to just stack the same case in 2U form right on top.

Quote:
Can any one clue me in on what a fair amount of distance is, when placing the transformer and psu boards in the case?.. if at all?
No idea.... but I plan on keeping the toroids as far away from the DAC chip as possible
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post #185 of 1283
6/28/08 at 12:28pm
You can place the transformer right against the input side of the power supply, and the power supply right against the power input side of the dac.
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post #186 of 1283
6/29/08 at 9:07pm
Pre orders are now being accepted ....

(ducks to avoid the stampede...)
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post #187 of 1283
6/29/08 at 9:38pm
Quote:
Originally Posted by fran View Post
Pre orders are now being accepted ....

(ducks to avoid the stampede...)
Ordered...... BAM!
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post #188 of 1283
6/29/08 at 10:04pm
I'm in
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post #189 of 1283
6/30/08 at 2:29am
Finally got it
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post #190 of 1283
6/30/08 at 2:11pm
Also placed my order yesterday!
Would be a nice birthday present (07/25)

Regards
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post #191 of 1283
7/2/08 at 12:15am
Some of you may find this thread interesting:

diyAudio Forums - Haiku I/V Stage

Cheers!
Russ
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post #192 of 1283
7/2/08 at 12:59am
Will you have some Haikus available with the next run of Buffalo?
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post #193 of 1283
7/2/08 at 1:01am
I have just now designed the PCBs for it, and they will be ordered next week. As soon as they are tested we will offer them. That will probably be a month or so.

Cheers!
Russ
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post #194 of 1283
7/2/08 at 1:05am
Quote:
That will probably be a month or so.
At least
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post #195 of 1283
7/2/08 at 8:39pm
Russ,

Couple questions, here it comes.

You mentions previously that the buffalo kit can come unassembled. Do you have a estimate date of availability on it? How about the price.

Reading the manual, I am slightly confused about I2S input. Is it true that I have to rewrite the firmware to enable I2S input? I plan to combine the USB module along.

This is kind of side track. For your Joshua Tree, is it possible to change the input impedance (I will need 1k)?

Thanks for the great work!

Peter
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