ODAC - general and technical discussions

[sorue]

Hmm I bought the fully assembled odac and am referring to that

[swalter]

Originally Posted by sorue

Hmm I bought the fully assembled odac and am referring to that

why would you need screws for a fully assembled unit?

[sorue]

Originally Posted by swalter

why would you need screws for a fully assembled unit?

i want to remove the existing screws so i can do some DIY mods

[jambul]

Hi,

for the tenor chip, can we skipp the built in ldo for 1.8v and suply it externally?

regards

[4nradio]

Originally Posted by willmax

That O2 with the RCAs coming out at the back plus ODAC is looking sweet.
What type of RCA are those?

Sorry, but I cannot recall where I bought the RCAs. I just had a few gold plated ones in my electronics parts box. They may even be lowly Radio Shack jacks!

I don't plan to use the RCA line-outs very often though, so they will get extremely minimal use. I only installed them in case I want to listen to the ODAC through another amp (for instance, I was A-B'ing the ODAC vs. the Bifrost with a tube-rolled Lyr amplifier.

[Rullknufs]

I would like to have the O2 and the ODAC in the same case. I would also like a 6.3mm headphones output on the back (preferably on the back, on the front is OK). I would also like the option to add a pair of RCA connectors to the back (if possible) and bypass the ODAC. Say, if I have another DAC at the moment. I could skip this but it would be nice to have.

Also... Is it possible to move ALL connections to the back of the case and only have the volume knob and on/off switch on the front? I know that might cause problems with the front panel and/or back panel but I'm not afraid to drill my own holes if it's possible and maybe produce my own panels (but in wood).

[Rullknufs]

Dear Stefan, you have a big fault in your guide on how to connect the O2 to the ODAC.
http://www.headnhifi.com/components/...To_O2_ODAC.pdf

In the last picture at page three you have shown that the black wires go to the upper holes and the white to the lower ones. This is reversed and if you do it like the way in the guide you'll en up with mono sound because so have I.

Looking at this picture here

It show the right way of doing it. If you want I can supply you with a new picture for your guide if you're not okay with "stealing" it from NwAvGuy's blog.

[swalter]

Originally Posted by Rullknufs

Dear Stefan, you have a big fault in your guide on how to connect the O2 to the ODAC.
http://www.headnhifi.com/components/...To_O2_ODAC.pdf

In the last picture at page three you have shown that the black wires go to the upper holes and the white to the lower ones. This is reversed and if you do it like the way in the guide you'll en up with mono sound because so have I.

Looking at this picture here

It show the right way of doing it. If you want I can supply you with a new picture for your guide if you're not okay with "stealing" it from NwAvGuy's blog.

Hi, thanks for pointing this out. I took the guide offline and will correct it.

Thanks, Stefan

[Rullknufs]

Originally Posted by swalter

Hi, thanks for pointing this out. I took the guide offline and will correct it.

Thanks, Stefan

I'm glad I can help

[DoktorSteve]

Hi Stefan, have you noticed a long mute on the ODAC? I think Foobar closes the USB connection when you change tracks manually and the ODAC then mutes. To me the mute time is too long and I loose a couple of notes when the new track starts.

Have you seen any reference to changing the time constant of the mute circuit? I think you need to change C120 to something a lot smaller than 1uF. Maybe we need to ask the elusive NWAVGUY.

Steve