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Re: Item Phase IV Computer Audio Recipes

Posted: Fri Jun 13, 2014 1:56 pm
by 2channelaudio
nige2000 wrote:
2channelaudio wrote:maybe consider some thing like this.
http://www.gigabyte.com.au/products/pro ... id=5049#ov

uses standard atx 24 and 4 pin power.
no dc conversion on the board.
2ghz quad core Celeron and only 10watt.

you could run this off a linear PS setup or a good PS like leadtek or seasonic.

I am grabbing one myself.
The dvi version is easier to come by at the moment, and is highlighted in item audios post.
make sure its got avx instruction capability, i wouldnt bet on it with this board
nope its not. already knew that
not sure its a major problem

Re: Item Phase IV Computer Audio Recipes

Posted: Fri Jun 13, 2014 2:05 pm
by nige2000
2channelaudio wrote:
nige2000 wrote:
2channelaudio wrote:maybe consider some thing like this.
http://www.gigabyte.com.au/products/pro ... id=5049#ov

uses standard atx 24 and 4 pin power.
no dc conversion on the board.
2ghz quad core Celeron and only 10watt.

you could run this off a linear PS setup or a good PS like leadtek or seasonic.

I am grabbing one myself.
The dvi version is easier to come by at the moment, and is highlighted in item audios post.
make sure its got avx instruction capability, i wouldnt bet on it with this board
nope its not. already knew that
not sure its a major problem
ok as long as you know
id never close the door on avx mqn
in fact id upgrade to get avx
is there no avx compatible boards like this?

Re: Item Phase IV Computer Audio Recipes

Posted: Fri Jun 13, 2014 8:09 pm
by item_audio
2channelaudio wrote:maybe consider some thing like this.
http://www.gigabyte.com.au/products/pro ... id=5049#ov

uses standard atx 24 and 4 pin power.
no dc conversion on the board.
2ghz quad core Celeron and only 10watt.

you could run this off a linear PS setup or a good PS like leadtek or seasonic.

I am grabbing one myself.
The dvi version is easier to come by at the moment, and is highlighted in item audios post.
The J1900 version is a good second alternative to the J1800 board: either are radically better than the SFF boards for audio application, and barely more expensive. Resamples lower-rate DSD all day. As long as you don't use it with a PicoPSU, it's a little beauty.

Re: Item Phase IV Computer Audio Recipes

Posted: Sat Jun 14, 2014 12:16 am
by 2channelaudio
item_audio wrote:
2channelaudio wrote:maybe consider some thing like this.
http://www.gigabyte.com.au/products/pro ... id=5049#ov

uses standard atx 24 and 4 pin power.
no dc conversion on the board.
2ghz quad core Celeron and only 10watt.

you could run this off a linear PS setup or a good PS like leadtek or seasonic.

I am grabbing one myself.
The dvi version is easier to come by at the moment, and is highlighted in item audios post.
The J1900 version is a good second alternative to the J1800 board: either are radically better than the SFF boards for audio application, and barely more expensive. Resamples lower-rate DSD all day. As long as you don't use it with a PicoPSU, it's a little beauty.
quad core v's dual core. gives ore flexibility with using the machine for video playback.
I would go with the J1900, its still low voltage
It would be nice if the J series CU's had AVX.
But looks like you need an (i) processor for that unfortunately.

Re: The P1

Posted: Sat Jun 14, 2014 11:13 am
by nige2000
item_audio wrote: If you want to get more serious about your Pi build . . .

Replace the ES9023 with an ES9018k2m-based I2S board like this this one and feed it with a 3 wire I2S signal connection from the Pi. Boards and power requirements vary.

Bypass the Pi's onboard 5 > 3.3V linear regulator and power it via a 3.3V LiFePo battery and upgrade the 19.2MHz with a Tentlabs or similar module fed with a separate clean 5V supply (ideally battery).

Hardwire better interconnects.

Install Volumio/MPD instead of Raspbian. This, and the 3.3V mod will rob the Pi of its ability as a multimedia player (no video output or playback), but it will fairly significantly improve its performance.
hi mark has someone managed to replace a clk on the pi?
might give it another look then so

can confirm the pi works best on lifepo4

Re: Item Phase IV Computer Audio Recipes

Posted: Sat Jun 14, 2014 5:29 pm
by wushuliu
Hm, curious how much better the Leadex Power Supplies are vs. my Seasonic X 400 fanless...

Re: Item Phase IV Computer Audio Recipes

Posted: Sat Jun 14, 2014 5:41 pm
by nige2000
wushuliu wrote:Hm, curious how much better the Leadex Power Supplies are vs. my Seasonic X 400 fanless...
ive a seasonic x 400 here and ive just ordered the leadex 750 so ill tell you in a week or so

Re: Item Phase IV Computer Audio Recipes

Posted: Sat Jun 14, 2014 6:25 pm
by wushuliu
nige2000 wrote:
wushuliu wrote:Hm, curious how much better the Leadex Power Supplies are vs. my Seasonic X 400 fanless...
ive a seasonic x 400 here and ive just ordered the leadex 750 so ill tell you in a week or so
sweet!

Re: Item Phase IV Computer Audio Recipes

Posted: Sat Jun 14, 2014 11:03 pm
by nige2000
wushuliu wrote:
nige2000 wrote:
wushuliu wrote:Hm, curious how much better the Leadex Power Supplies are vs. my Seasonic X 400 fanless...
ive a seasonic x 400 here and ive just ordered the leadex 750 so ill tell you in a week or so
sweet!
ill sell u it if i don't like it :)

Re: Item Phase IV Computer Audio Recipes

Posted: Thu Jun 19, 2014 10:15 am
by rdsu
2channelaudio wrote:maybe consider some thing like this.
http://www.gigabyte.com.au/products/pro ... id=5049#ov

uses standard atx 24 and 4 pin power.
no dc conversion on the board.
2ghz quad core Celeron and only 10watt.

you could run this off a linear PS setup or a good PS like leadtek or seasonic.

I am grabbing one myself.
The dvi version is easier to come by at the moment, and is highlighted in item audios post.
The new ASRock Q1900 models seems to be really nice, and also have DC input versions...
http://www.asrock.com/mb/index.asp?s=Intel%20CPU