DSP Xover project (part 2) - Page 111 - diyAudio
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Old 10th May 2013, 05:37 AM   #1101
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Cheap ps option?

1pc DC Switching Power Supply NET 35B 35W 3 O P 5V 3A 12V 1A 12V 0 5A Meanwell | eBay
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Old 10th May 2013, 10:20 PM   #1102
chaparK is offline chaparK  Luxembourg
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Quote:
Originally Posted by UrSv View Post
I just checked the board and it is the relay connector that is a little out of Place as it seems the distance is approximately 197.5 mm or thereabouts rather than 201.6 mm.
Quote:
Originally Posted by UrSv View Post
Nick, any input on the template for the back panel? Is the position correct in Appendix C for the relay connector?
Quote:
Originally Posted by dahlberg View Post
http://www.dahlbergaudiodesign.se/najda_back.zip

Now it's done. The relay connector is missplaced in the appendix.
It should read 197 instead of 201,6mm. The rest is ok.
Yes, indeed sorry guys, there is a typing error in the appendix. It should read 197.1 instead of 201.6 if you want a 10 mm cut width centered about the connector. The connector itself is 9.2 mm wide.

I'm currently overseas so I can't update the documents on the website. I'll do that in a week. Note that the placement of the cut in the drawing is fine - it's just the reading which is wrong.

Nice job Bengt, and interesting design! So is the board hanging upside down? And the display comes on the top? Looking forward to the finished product

Quote:
Originally Posted by Flemming J P View Post
I have tried a diyinhk usb interface using a CM6631A and it almost works.

I only get right left channel audio, if I switch to analog input on the nadja everything works fine.

Any clues to what it could be?
Do you mean you have the channels L-R inverted?

Yup, should be fine! And definitely worth a try at this price
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Old 10th May 2013, 10:50 PM   #1103
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Location: Sweden
Quote:
Originally Posted by chaparK View Post
Nice job Bengt, and interesting design! So is the board hanging upside down? And the display comes on the top? Looking forward to the finished product

Yepp, it's hanging uppside down. There will be more pictures in due time.

Last edited by dahlberg; 10th May 2013 at 11:16 PM.
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Old 11th May 2013, 12:26 PM   #1104
Crumboo is offline Crumboo  Sweden
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Soo...trying to load some coefficients for FIR filtering i Najda Under Control. Tried text files and wav but is getting a "Invalid file" message. What kind of files are expected?

Best regards,
Mattias
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Old 11th May 2013, 01:19 PM   #1105
paalj is offline paalj  Norway
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Quote:
Originally Posted by Crumboo View Post
Soo...trying to load some coefficients for FIR filtering i Najda Under Control. Tried text files and wav but is getting a "Invalid file" message. What kind of files are expected?

Best regards,
Mattias
Hi Mattias,
A text file should do
Have a look at the attached files. This is a minimum phase 2k xo@48kHz.
have fun!

best Paal
Attached Files
File Type: zip MP_2k_512tap.zip (1.2 KB, 18 views)

Last edited by paalj; 11th May 2013 at 01:35 PM.
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Old 11th May 2013, 01:46 PM   #1106
Crumboo is offline Crumboo  Sweden
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Quote:
Originally Posted by paalj View Post
Hi Mattias,
A text file should do
Have a look at the attached files. This is a minimum phase 2k xo@48kHz.
have fun!

best Paal
Thanks, your files worked as expected. Can't see what is wrong with my text files then. See the attached file (100 taps):
Attached Files
File Type: txt output.txt (1.4 KB, 13 views)
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Old 11th May 2013, 02:18 PM   #1107
paalj is offline paalj  Norway
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Quote:
Originally Posted by Crumboo View Post
Thanks, your files worked as expected. Can't see what is wrong with my text files then. See the attached file (100 taps):
There where some spaces in between. Try now
Attached Files
File Type: txt output (1).txt (1.4 KB, 6 views)
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Old 11th May 2013, 03:26 PM   #1108
Crumboo is offline Crumboo  Sweden
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Quote:
Originally Posted by paalj View Post
There where some spaces in between. Try now
Thanks again, now it's working! Cool!
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Old 11th May 2013, 04:14 PM   #1109
SAC is offline SAC  United Kingdom
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Join Date: Feb 2007
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Quote:
Originally Posted by Alterfalter View Post
Hi Nick,

thanks for the fast reply. I ordered the Astec DPT52 (external PSU). I will check all voltages with and without load before I connect to Najda.
Uwe
Any progress on checking the voltage with this? Attractive at that price!
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Old 11th May 2013, 04:18 PM   #1110
paalj is offline paalj  Norway
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Location: Norway
Hi Nick,
I wonder if there is an issue with the FIR phase display in "Najda under control"?
I am getting some strange displays and can't get it right. See attachment.

best,
Paal
Attached Files
File Type: pdf Najda_phase display.pdf (236.8 KB, 41 views)
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