Yup, as @jvvita talked me thru it last weekend, a little setup is needed to get from a separate Roon server over the network to BACCH4Mac. But was pretty easy. Even easier if Edgar does it for you.
@brian.fitterman Have been using USB from BACCH4Mac to PSA MK2 for almost a year now. My DDC / I2S are just getting dusty. No need.
One thing I may add. The Roon Endpoint Daemon plugin or the Roon Software on the Bacch4mac can be used as endpoint.You just cannot have both active. Why use Roon Firmware as endpoint software and feed with separate Roon server? You can use the Bacch4mac HDMI out to see Roon app on a big screen TV or stream YouTube music videos and have Bacch4mac XTC at the same time. Also you can use wireless mouse and wireless apple Magic Keyboard to control B4Mac or Roon server looking at mouse pointer big screen that also show album art and meta data or your headtracking video. Big advantage no neck issues with face always looking down at an iPad or its screen blocking or reflecting sound.
With BACCH in the chain (even without ORC yet) the music is even better in the next room.
Happy camper here for sure.
The Roon Endpoint on the Bacch4Mac is the Mac Mini. When you are using the Roon Endpoint on the Bacch4Mac the BabyFace Pro is not involved in any way. The BabyFace Pro outputs are connected to the Bacch4Mac via TotalMix, and in TotalMix you can actually mute them.
The Roon Endpoint function is all Mac Mini based.
Yes, but as far as I understand, you need the Babyface connect to use the audio routing totalmix provides. If you disconnect the Babyface, totalmix wonât launch and you wouldnt get sound. To play without the Babyface, you need blackhole driver installed.
That is as far as my understanding goes.
Yes, that is true.
I am not saying you can disconnect the BabyFace Pro. No.
I am saying the Roon Endpoint function is handled by the Mac Mini, and that as such it has nothing to do with the BabyFace Pro at all.
You leave the Babyface Pro connected, but it is not involved at all in the Roon Endpoint function.
I donât know any other way to say it.
We are agreeing. The sound doesnt go through the Babyface. Its only function is to launch totalmix
@luca.pelliccioli
You need to get one of the BACCH-SP units sent to Italy. The DIO (Digital In and Out) has no DAC or preamp. If you still listen to records you might need the ADIO (Analog + Digital In and Out). Brother Al @aangen could verify that information as I no longer have any kind of disc spinner.
You simply will not believe the difference that XTC makes to your listening experience. It takes your REW experience to a whole new (and nicely automated) level. All this for less than the price of a Stealth cable too! 
Also prepay for the ORC module when it becomes available. I ordered it but dont have it in hand just yet. They are estimating June or July for widespread distribution.
Thanks, Baldy. Yes Al is suggesting to me the same thing since months.
I take your advices seriously into consideration but I need more time for this upgrade, still concentrated on my plans (cables) until the end of the year. Or even before⌠who knows?
Anyhow you caught my attention!
Audio Guru Al is correct as usual.
I just got my ADIO running a few days ago and had my training meeting with Edgar on Wednesday.
It is really a paradigm shift in how music sounds when played back.
With your system (if you use Roon or other network playback software) all you will need is a network cable from your switch and an SPDIF cable to your DAC and you will be good to go.
I cannot wait for you to have some time with it proper!
Been living with the B4M for the last 3 days + this morning. Upon first listen I knew thereâs something off. Spent the next 3 days figuring out what it is and I think itâs the decay. Itâs subtle but I think B4M cancels out some of the instrument and vocal decays that caused the music to be less harmonious. If I turned down the XTC slider to 50% itâs better, but still there.
To be clear, this is my room, my ears, my preference. So take it with a grain of salt, there are plenty of users here that couldnât live without the B4M once they heard it. I listen to 100% studio recorded music.
The ORC however is a good one to have, in ears stereo measurement enables pretty accurate room correction. Lucky for me, my setup is not that bad so the difference is minor but I can hear it. I think ORC for me has more positive impact compared to XTC. As I understand it, B4M also resamples the audio to 96k and I think that have some effect too when I A/B direct to DAC instead of going through the B4M, although very minor, I would definitely trust the B4M bypass feature.
Audio delay is around 50msec, which is obvious if you pay close attention to the lip sync. Itâs a problem for me as I watch lots of music videos on youtube. Youtube really need to add an AV sync adjustment feature. I can fix this in JRM though so my library of music videos arenât affected by this. Memory usage is around 6GB, which when used with all the other apps, JRM, Chrome, Firefox, Qobuz, for me easily go above 20GB, Iâm sitting at 24GB usage right now as I type this. Info for those that needs it, most of us donât care. Glad I got the Mac Studio for this instead of the mini.
Going to rerun some measurements and continue to tweak XTC to see if I can get it to sound more natural.
One thing to check is in the âAdvancedâ tab make sure the âBACCH Designer Engine Settingsâ is set to 4ms (normal). My ADIO originally was set at 15 and the results were not nearly as good as setting it back to 4.
FWIW.
Mine is at 3 msec, which is the default setting. I donât have 4 msec option, itâs 2,3, and 6 only⌠will try a few changes there.
Thatâs the setting to define the time-window into,which the alrgorithm âlooksâ to calculate the filter. It should be the smallest window possible. To get an insight, look at you I,pulse response graphic. The time window will be marked there. And it should end before the impulse response âcalms downâ, showing no more ripples (thatâs kind of a steady state for your room).
Go over it, and you might âovercorrectâ, creating some artifacts or even the sound becoming artificial.
@falling_leaves, can you share your impulse response graph, and your pre-correction Orc graph?
Thanks. It appears that your window is at 6ms. See the green line just after the 5ms mark? If this is so, it might be an explanation to what you are hearing.
The setting of the window is on the left side. I am away from my system, so I cannot get a screenshot for you. But you just check there.
The windows being at 6ms it will correct the reflection your IR is exhibiting at approximately 3-4ms. If you set it at 3ms, the green line will fall just short or even at that reflection.
Give it a go. You should have to remeasure or click ârecrunchâ after you set the window.
And the orc graphs are inside the ORC module of the application. There you can the frequency response before orc, the optimal, the measured after orc is applied, and the correction filter response.
Just checked mine. On 3ms setting, it also falls just after the 5ms mark, like yours. Sorry about this. Nonetheless, you could try the 2ms setting and see if it sounds better to you.
It takes some time to get used to. If you stay calm and somewhat disinterested the light bulbs turn on. In my experience. There is a desire to try this and try that. Avoid those thoughts for 10 hours at a time if you can. You can very easily hit this and that and end up who knows where.
