Mr White's "Opus", designing a simple balanced DAC

[BrianDonegan]

I guessed as much from your last post

Hey, look at that. Forgot I posted that ...

 

[Leeuwarden]

Finally installed the Metronome I still had. Wonder why I did not install it right away...

 

[alq]

Does anybody know when the Opus DAC will be available?

 

[vitalbesson]

wondering too...

 

[pinnocchio]

Hey Russ, Brian,

What are the plans for the new revision of the Opus?

Are you planning something along like dual WM8741 in differential mode or just a redesign of the board keeping the "same " components?

Ciao!

 

[hochopeper]

Hey pinnocchio, see post from Brian on last page?

Revised layout, option for Tridents regulators, Volumite built in...

Is there any reason why, a 5V trident couldn't be retrofitted to an Opus2.0 to replace the LDO? I'm about to build a dac around dual mono Opus2.0 and don't need the built in volumite.

I'm also wondering, current tridents are good for 100mA, the LDO on the Opus 2.0 is good for 150mA from memory. Does this mean you're going to shoot for a higher current in the 5V trident? Or with IAVDD on the WM8741 being ~55mA is there no advantage? [I might have answered my own question there but still asking the question ]

 

[BrianDonegan]

Is there any reason why, a 5V trident couldn't be retrofitted to an Opus2.0 to replace the LDO?

No reason, just trickier soldering.

Does this mean you're going to shoot for a higher current in the 5V trident?

Not really needed for Opus, but the new Trident is a bit more robust... more of a side effect than a goal.

 

[alq]

Does anybody know what's happening with the Opus DAC?

 

[thegoldenear]

Does anybody know what's happening with the Opus DAC?

I'm planning to build a DAC and stumbled upon twisted pear. looking forward to putting one together with the Opus

 

[BrianDonegan]

Hi everyone...

Since we are experiencing a bit of a delay in getting the revised Opus out, the original Opus is back on sale for a little while.

 

[alq]

I'm planning to build a DAC and stumbled upon twisted pear. looking forward to putting one together with the Opus

I'm planning to upgrade my existing DAC AK4396 with the Opus.

 

[neb001]

Hi everyone...

Since we are experiencing a bit of a delay in getting the revised Opus out, the original Opus is back on sale for a little while.

Any chance the 5v trident is close to ready so those of us with existing opus boards can retrofit them in?

 

[thegoldenear]

I'm planning to upgrade my existing DAC AK4396 with the Opus.

Cool. My plan is to make a opus DAC with a balanced tube output. I'll mount the circuit boards onto bamboo or on a slab of Metal (no case)

 

[OllBoll]

Any rough ETA of when the new Opus with trident regulators is available for purchase?

 

[BrianDonegan]

I just did a little house cleaning, removing some posts that were only tangentially related to the Opus. Please, if you want to discuss generic DAC concepts, start a thread in the Digital section of the forum. If you want to discuss the Opus, please, post here.

 

[neb001]

I'm not sure that talk even qualified as a valid discussion of generic DAC concepts

Any updates on the update of the Opus?

 

[paulharmon]

I'm holding out on buying Opus boards for a dual-mono balanced build. I'll go ahead and second the question about the updated design. Any news in the past few months?

 

[Jackal29a]

I'm holding out on buying Opus boards for a dual-mono balanced build. I'll go ahead and second the question about the updated design. Any news in the past few months?

+1 (but just one board)

 

[c12mech]

If I want to have one with an SPDIF input and a usb-I2s input what is the correct way to implement this? I can see that doing one or the other is pretty easy but am trying to come up with a good way for multiple inputs. Would the 4 input board from the Buffalo3 work along with a sidecar?

 

[BrianDonegan]

Use an OTTO-II to switch between the two I2S sources.