• Hello and Welcome to HiFiVision.com - an online community for the home entertainment and tech enthusiasts!

    If you would like to ask a question, participate in a discussion and view attachments please Register yourself.

Need help with wolfson diy dac

Wharfedale Evo 4.2

afj

Well-Known Member
Joined
Sep 12, 2008
Messages
2,107
Points
83
Location
hyderabad
Hi
was looking for some info and help with some diy dac kits that i identified. was looking at wolfson since i had that in my cdp (cambridge) - it used dual wm8740 dacs and was very happy with its dynamics and sound stage and clarity. yes, could be a little clinical, but matched perfectly with a slightly warm sounding nad

of the two kits i saw, one has dual wolfson wm8740 dacs. the other has dual wolfson wm8741, which reviews say is a decent improvement over the 8740.

1. does anyone have any information or experience with these kits. specs say that the 8741 plays 192khz, and the 8740 plays only upto 96 or 48khz (pl correct me if im wrong). what would be the implications of this, both in sound and also ability to play files / formats.

2. also i see a yellow rca connector on the board, apart from the red and white. im assuming the red and white are audio out. is the yellow a video out? if it has a video out that would be perfect. else i could connect a separate cable from the computer to the tv - just for video out.

3. does this connect to the computer via usb?

to give you an idea of my setup, i would be using this as a dac / external sound card for my computer. this would then connect to a nad pre onto a nad 272 power amp. speakers are monitor audio silver rs6. there is also a tv that i would like to connect to the setup for video to watch movies / youtube. video through the tv, and audio through the amp / speakers

below are the links of the kits

DAC Dual WM8740 Coaxial USB Decoder Board WM8740 DIR9001 PCM2706 | eBay

24BIT192K CS8416 PCM1794 AK4399 Double WM8741 DAC Decoding Board LCD Softwave | eBay
 

sarith

Active Member
Joined
Nov 11, 2009
Messages
953
Points
43
Location
Thiruvananthapuram, Kerala
1. does anyone have any information or experience with these kits. specs say that the 8741 plays 192khz, and the 8740 plays only upto 96 or 48khz (pl correct me if im wrong). what would be the implications of this, both in sound and also ability to play files / formats.

2. also i see a yellow rca connector on the board, apart from the red and white. im assuming the red and white are audio out. is the yellow a video out? if it has a video out that would be perfect. else i could connect a separate cable from the computer to the tv - just for video out.

3. does this connect to the computer via usb?

1. WM8741 is a good chip and plays 192Khz.

2. Yellow RCA seems like coaxial input.

3. You can connect your computer via usb.

Other thoughts: The DAC in the link you posted is of normal quality. If using your computer is the only reason why you are going for a DAC, it's better to go for a USB to analogue out DAC (without S/PDIF input)
 
  • Like
Reactions: afj

afj

Well-Known Member
Joined
Sep 12, 2008
Messages
2,107
Points
83
Location
hyderabad
1. WM8741 is a good chip and plays 192Khz.

2. Yellow RCA seems like coaxial input.

3. You can connect your computer via usb.

Other thoughts: The DAC in the link you posted is of normal quality. If using your computer is the only reason why you are going for a DAC, it's better to go for a USB to analogue out DAC (without S/PDIF input)

thanks sarith. when you say the dac is of normal quality, what exactly do you mean by that. is that build quality or sound quality. does normal mean good or average
 

sarith

Active Member
Joined
Nov 11, 2009
Messages
953
Points
43
Location
Thiruvananthapuram, Kerala
thanks sarith. when you say the dac is of normal quality, what exactly do you mean by that. is that build quality or sound quality. does normal mean good or average

Both built quality and sound quality. By normal, I meant good but not extra ordinary or you know, hi-fi. I think a DAC sounds good, regardless of the chip, by the way it is implemented. I sent you a PM.
 
Last edited:

Nikhil

Moderator
Staff member
Joined
Dec 8, 2007
Messages
3,324
Points
113
Location
Hyderabad
Anand,

The Wolfson DAC chips are good. The AP DAC is based on the WM8741.
But as others have posted implementation is far more important than the chip.

In general Wolfson made very good chips. They are no longer around.
The company has now been absorbed into Cirrus Logic.
WM8741 Data Sheet: http://www.cirrus.com/en/pubs/proDatasheet/WM8741_v4.3.pdf

Regards.
 
  • Like
Reactions: afj

srisaikat

Well-Known Member
Joined
Aug 2, 2010
Messages
560
Points
63
Location
KOLKATA
Though implementation will come first and DAC chip itself come later but I have to agree, after trying few DACs with Wolfson, Sabre, AKM, Cirrus and BB chips, I have kept two wolfson based dac for their effortless yet resolving sound.
 
  • Like
Reactions: afj
Top