mattultrahifi
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I know
WiiM Amp Ultra with external DAC?
- Thread starter d00
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mattultrahifi
Member
So, you are using an external DAC, feed the analogue output into the WiiM Amp Ultra's line input where an ADC converts it to digital again. The signal than goes through the internal DAC of the WiiM Amp Ultra and you listen to passive speakers connected to the WiiM Amp Ultra?
In that case all you.hear is additional noise and distortion from an additional DAC and ADC in the chain.
If you prefer the resulting sound, that's fine. But it's reall just a very inconvenient, unspecific and expensive way to alter the original signal. Chances are, you could have the same effect by simply using EQ.
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Or perhaps...
Maybe the wiim line in has been renamed to CD Transport because they're using cd digital output to dacmagic to wiim.
Maybe the wiim optical port is already being used, so can't go digital direct to wiim?
Maybe the cd has analog out too.
Maybe that analog output directly into the wiim line in sounds worse 'cos the dac in the cd player is not great.
Maybe the dacmagic adds a certain je ne sais quoi to the sound.
But would it would imply is that the adc / dac of the wiim is at least preserving the characteristics of what comes in.
Maybe the wiim line in has been renamed to CD Transport because they're using cd digital output to dacmagic to wiim.
Maybe the wiim optical port is already being used, so can't go digital direct to wiim?
Maybe the cd has analog out too.
Maybe that analog output directly into the wiim line in sounds worse 'cos the dac in the cd player is not great.
Maybe the dacmagic adds a certain je ne sais quoi to the sound.
But would it would imply is that the adc / dac of the wiim is at least preserving the characteristics of what comes in.
Admittedly, I still don't know.
A coax to toslink converter might have done the trick for less money.
This would be the only scenario where these two statements would both make sense: The CD deck has "a coax output" only and the DACMAGIC connected to line in "is an upgrade".
A coax to toslink converter might have done the trick for less money.
I didn't check that thoroughly, just speculating too
mattultrahifi
Member
Ok' cd digital coax out to coax dacmagic input' then dac out to amp line in' works a treat & sounds great even if it over complicates thingsSo, you are using an external DAC, feed the analogue output into the WiiM Amp Ultra's line input where an ADC converts it to digital again. The signal than goes through the internal DAC of the WiiM Amp Ultra and you listen to passive speakers connected to the WiiM Amp Ultra?
In that case all you.hear is additional noise and distortion from an additional DAC and ADC in the chain.
If you prefer the resulting sound, that's fine. But it's reall just a very inconvenient, unspecific and expensive way to alter the original signal. Chances are, you could have the same effect by simply using EQ.
I used the WAU via its USB output with an external DAC/headphone amplifier for my headphones as a streaming source.
One DAC has the ESS ES9039Q2M chip.
When using the external DAC for the first time, I forgot to deactivate the sub out & RoomFit
.
I assumed that this would be deactivated automatically. This means that RoomFit data is transferred to an external DAC.
What I really miss is a 31-band EQ.
One DAC has the ESS ES9039Q2M chip.
When using the external DAC for the first time, I forgot to deactivate the sub out & RoomFit
.I assumed that this would be deactivated automatically. This means that RoomFit data is transferred to an external DAC.
What I really miss is a 31-band EQ.
hgo58
Major Contributor
No. The RoomFit EQ is applied to the audio stream before being forwarded on the digital output. The external DAC just receives the audio stream after WiiM DSP processing.
slartibartfast
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IIRC that was a fairly recent change. It used to be the case (probably before Roomfit was a separate section) that you had to manually switch off PEQ when using headphones.via USB.
I don’t think that applies to usb output - the WiiM device has no way of knowing you’re using headphones or an external DAC. The automatic switching off of room correction is just for the actual headphone output on an Ultra iirc.
Ultimately, this means that the setting (in my case, exclusively HPF) is passed on to the main speakers via the external DAC amplifier.
The volume control = preamplifier is also used, or should be used, in this process.
If this is correct, do I have RoomFit calibration via Pre-USB output?
Exactly.
How did I come up with that?
I'm sitting listening to my headphones, at my stereo or rather in front of it .
I was wondering about the bass volume of my in-ear headphones, for example, as they can't possibly have that much.
So I went into the settings and deactivated them one by one.
In other words, manually.
Reversing the gain values of RoomFit's 10-band filter and saving it as a PEQ should disable RoomFit. Then, in the preset editor, select that EQ and turn off the sub.
slartibartfast
Major Contributor
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So I don't remember correctly then
No, no, I don't need anything for the in-ear monitors.
Without anything, it's fine; the 10-band EQ is much too broadband for me. A simple on/off switch is sufficient in this area.
In the other device, I also have a 31-band EQ and various other plug-ins.
For LS operation, I will only iron out the excesses, and that should be enough.
The 10 band PEQ applied by RoomFit is as broad or narrow band as you configure it in the RoomFit settings. If you restrict it to something like 30 Hz to 300 Hz isn't 10 bands plenty enough?
And that on/off switch does exists, luckily. Being able to switch RoomFit on or off when using the USB output can hardly be a disadvantage, right?
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