Go Back   Home > Forums > > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Quanghao Audio Design Quanghao Audio Design is a producer of DIY Audiophile Kits and PCB boards, selected from many listening tests!

Reply
 
Thread Tools Search this Thread
Old 2nd March 2013, 04:31 AM   #141
smoothquark is offline smoothquark  United Kingdom
diyAudio Member
 
Join Date: Oct 2010
Quote:
Originally Posted by danny_66 View Post
Hi smoothquark,
About the modu case: you can order the case with a 8mm frontplate, then it is easy to drill some holes and tap threads inside the holes.
Then you can screw the LCD to the front panel.
Regards,
Danny
Thanks Danny. Looks like modushop will customise the front panel. Might be easier than I thought!
  Reply With Quote
Old 2nd March 2013, 05:02 AM   #142
quanghao is offline quanghao  Viet Nam
diyAudio Member
 
Join Date: Sep 2009
Location: Vietnam
DAC-END R (ES9018) full assembled board Send a message via Yahoo to quanghao DAC-END R (ES9018) full assembled board
Quote:
Originally Posted by myfavoritething View Post
Just a silly question, with the opamp output, is there any residual voltage offset on the balanced output (my UCD amplifier has no more input cap) ?
OPAM DIRECT OUTPUT NOT go through a capacitor, you can connect directly to the amplifier, WITHOUT PRE, and use the volum of dac

please see the circuit:

http://www.audiodesignguide.com/DAC32/OpAmp_ver4a.gif

and some i was measure of output IV opam whit balance input, see this link, and post 65

http://www.diyaudio.com/forums/attac...cy-0-10khz.jpg
http://www.diyaudio.com/forums/attac...cy-0-80khz.jpg
http://www.diyaudio.com/forums/attac...distortion.jpg
http://www.diyaudio.com/forums/digit...-es9018-7.html

Last edited by quanghao; 2nd March 2013 at 05:07 AM.
  Reply With Quote
Old 2nd March 2013, 06:57 AM   #143
lillo is offline lillo  Italy
diyAudio Member
 
Join Date: May 2006
Hi quanghao, which is the total cost of a completed dac (DAC base+ I/V op + OP +chassis + transformer + Amanero USB-I2S module ) ?

Since you're selling electronic material do you have any cutomer feedback about custom
that could be applied (since I'm from Italy may be Andrea have some info about that)
  Reply With Quote
Old 2nd March 2013, 01:56 PM   #144
quanghao is offline quanghao  Viet Nam
diyAudio Member
 
Join Date: Sep 2009
Location: Vietnam
DAC-END R (ES9018) full assembled board Send a message via Yahoo to quanghao DAC-END R (ES9018) full assembled board
Quote:
Originally Posted by bertchai View Post
wow.. nice... I am in... at no. 25....
you can take a look at this picture to make chassis for easier, cut the hole behind the DAC.
Attached Images
File Type: jpg hole-behind.jpg (517.5 KB, 677 views)
File Type: jpg viewed-from-above-2.jpg (842.2 KB, 496 views)
File Type: jpg view-from-behind.jpg (649.9 KB, 450 views)
  Reply With Quote
Old 2nd March 2013, 01:57 PM   #145
quanghao is offline quanghao  Viet Nam
diyAudio Member
 
Join Date: Sep 2009
Location: Vietnam
DAC-END R (ES9018) full assembled board Send a message via Yahoo to quanghao DAC-END R (ES9018) full assembled board
Quote:
Originally Posted by lillo View Post
Hi quanghao, which is the total cost of a completed dac (DAC base+ I/V op + OP +chassis + transformer + Amanero USB-I2S module ) ?

Since you're selling electronic material do you have any cutomer feedback about custom
that could be applied (since I'm from Italy may be Andrea have some info about that)
Thank you for your trust, I am planning for a complete DAC.
estimated selling price less than $ 1,200 (only for members on diyaudio), 1 year product warranty.
  Reply With Quote
Old 2nd March 2013, 02:00 PM   #146
quanghao is offline quanghao  Viet Nam
diyAudio Member
 
Join Date: Sep 2009
Location: Vietnam
DAC-END R (ES9018) full assembled board Send a message via Yahoo to quanghao DAC-END R (ES9018) full assembled board
Hi all!

I had planned production orders dac kits in 1 to 2 weeks, hope you peace of mind.
quanghao
  Reply With Quote
Old 2nd March 2013, 08:11 PM   #147
NicMac is offline NicMac  Italy
diyAudio Member
 
NicMac's Avatar
 
Join Date: Feb 2009
DAC-END R (ES9018) full assembled board
quanghao,

What will be the cost including shipment to the EU?
Just the basic stuffed/tested PCB.
The 1200-450=750 price-tag for a op-amp IV, transformer and case does not appeal to me
  Reply With Quote
Old 3rd March 2013, 08:44 AM   #148
smoothquark is offline smoothquark  United Kingdom
diyAudio Member
 
Join Date: Oct 2010
I presume the dac board (450) + IV board (60) + opamps and connectors / cables (?) comes to about 700 max. 500 for chassis and transformer does seem excessive ?

Anyway, is there anyone else thinking of getting a chassis from modu ? If so, perhaps we can buy a few units together and bring the cost down? I am considering one of the following:

1. 2U slimline with 10mm front panel (450 x 280 x 80) (1NSL02280B) (Euro 54)
2. 2U Pesante with 10mm front panel (450 x 300 x 80) (1NPS02PB) (Euro 45)
3. Galaxy with 10mm front panel (330 x 280 x 40) (1NGXA348) (Euro 46.50) but likely not high enough

Customising the front and back panels for cut outs costs extra (roughly 75 - 90 euro for both), so, roughly about Euro 150 exc tax. I think feet might be extra as well as any engraving. Perhaps about 180 to 200 Euro in total? Seems quite reasonable... Not had a detailed look yet. I think they have a service to design a case based on drawings and photos.
  Reply With Quote
Old 3rd March 2013, 09:37 AM   #149
malarkey is offline malarkey  Germany
diyAudio Member
 
Join Date: Dec 2011
DAC-END R (ES9018) full assembled board
1. 1 x audiodesign ( DAC base )
2. 1 x quanghao ( DAC base + DAC chassis + transfomer)
3. 1 x fansipan ( DAC base + DAC chassis + transfomer)
4. 1 x yildiray ( DAC base + I/V opamp)
5. 1 x danny_66 ( DAC base + I/V opamp)
6. 1 x MihajloTM ( DAC base + I/V opamp)
7. 1 x i2k92 ( DAC base + I/V opamp)
8. 1 x axeexa ( DAC base + I/V opamp + OP + tranfomer)
9. 1 x sipo75 ( DAC base + I/V opamp)
10. 1x Jinkslynx ( DAC base + I/V opamp + OP + tranfomer + chassis)
11. DAHL75 ( DAC base )
12. 1 x smoothquark ( DAC base + I/V opamp + OP +/-transformer +/-chassis)
13. 1 x CeeVee ( DAC base + transfomer)
14.1x Smthgbrrd (DAC base + I/V opamp + OP + transformer )
15. 1 x larslang (DAC base + DAC chassis + transformer)
16. 1 x linuxfan ( DAC base + DAC chassis + transfomer)
17. 1 x randytsuch (DAC base)
18. 1 x claudio52 (DAC base + DAC chassis + trasformer).
19, 20. 2 x danielkol (DAC base)
21. NicMac (DAC base + DAC chassis + trasformer)
22. 1 x gjorgji (DAC base + I/V opamp + transformer + chassis)
23. myfavoritething (DAC base+ I/V op + OP +chassis + transformer)
24. MattMax (DAC base+ I/V op + OP +chassis + transformer)
25. bertchai (DAC base + I/V op + chassis)
26. kimgiin (DAC Base)
27. misterrogers (DAC Base)
28. malarkey (DAC Base)
  Reply With Quote
Old 3rd March 2013, 10:20 AM   #150
smoothquark is offline smoothquark  United Kingdom
diyAudio Member
 
Join Date: Oct 2010
Hmm.. looks like the chassis may be based on this (preamplifier DAC headphone amp 3207 USD 54-) ? If so, I would be happy to purchase the chassis from quanghao and possibly get another one for my streamer.
  Reply With Quote

Reply


DAC-END R (ES9018) full assembled boardHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
DAC-END R (ES9018) quanghao Digital Source 168 22nd June 2013 12:13 PM
DAC ES9018 Evaluation Board / No Output ghmfranken Digital Line Level 7 15th January 2013 08:13 PM
FS: NeoY2ks ES9018 DAC board with all the components guglielmope Swap Meet 4 18th December 2012 10:01 AM
Another DIY ESS ES9018 Sabre DAC board Trevor White Digital Line Level 4 19th August 2010 02:41 PM


New To Site? Need Help?

All times are GMT. The time now is 05:48 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki