Amazing this can be done! ![]()
thank you but the issue is 1024 specific with full load
You could get an unmanaged switch (one with metal case and needed specs) and connect your router to it through single cable and then everything else to the switch.
Routers have some kind of switch built-in to have multiple ports, but detailed specs for these are rarely available.
For example this should do…
See here
Output through a NAA in this case removes any need to use DoP, since macOS CoreAudio is not involved at all.
Some news…
I might actually be facing a network issue. I had a ramapage of static with… PCM mode before I got pure tone (1K Hz ?) and “no way to host” message and HQP seeing only naa…RED… or no naa at all in preferences
I was streaming from Qobuz with all ethernet cables plugged back to the ISP switch/box and fixed address to the Time Capsule with a single ethernet cable in for better WIFI (not used for music but for Client on iPad). Yesterday I had a seemingly ""problem solved session listening to France Musique radio channeled to HQP upsampling @1024. I left home for a couple of hours just muting preamp and when back I had the 1 (?) Khz tone. back then, all ethernet cables were plugged to the TC in DHCP router mode.
Seems the issue is unsolvable, that even if I acquire, say a second hand Cisco 801, a switch I won’t be able to trust the ISP provided box and they don’t have boxes without switches, wifi phone, you name it.
For the time being I convinced myself AHM7EC8B @1024 is too different/sweet from SDM with either ASDM7EC modulator or PCM (PCM LNS15 @ 16 or 32 x is much much closer to the ASDM7EC modulators than is AHM7EC8B) to be true.
I reverted my network to no static address, TC in bridge mode and I will be just happy if I don’t get stressful 1 KhZ and need to reboot everything after a while anytime I tap from the internet for music content
TWIMC, I revert all HQP preferences to default, DSP/CPU greyed, with PCM route limited to 768 for PCM sources so I can use ps hb m whenever apod counter is cool and ASDM7EC light as modulator for DSD souces
@jussi_laako I’d be happy to read your conclusions about my previous post and if you believe it would be worthy to introduce a new switch in my system, eventually using a thunderbolt to ethernet adapter to link the Mac Studio to the Time Capsule (or directly to the ISP provided box), with only the Studio (via its ethernet port) and the Red connected to it. Would a < to 20 € Netgear switch 802.3az be fine in the context of Studio/Red/May or should I put more money, ie in the power supply ?? I also have a very short ethernet cable between the box and the TC. I did not notice a difference with a longer cable but is short (0.5 m) ethernet cable bad practice ?
In the meantime thank you for the 2s versions of the hb, I’m back upsampling PCM to DSD with acceptable initialisation time and gorgeous sound.
I’m puzzled by the fact that I can’t sustain (regular dropouts) 512 x 48 while 512 X44.1 is OK even with n48 sources. It’s true even with the 512 fs version of ASDM7EC Light. BTW, I don’t hear a benefit (maybe the other way round) using 512 fs version @512. Should I ?
Has anyone an experience with 3M EMI RMF RMI absorbers ? Sometimes I indulge a good laugh reading reviews of multi bucks accessories such as ART’s which are probably a repackaging of 3M stuff…
No, don’t add more ethernet interfaces to any of your devices. You just place a suitable switch between all your devices and your firewall/router. What ever you use to provide internal network now. So only one link from the switch towards internet. And locally everything talks to each other through the switch. This is for example how I have it.
I now have a Aruba HPE 1420 and the issue of vinyl like static /packet loss is not solved. This might be expected since you rather diagnosed a USB packet loss issue but as much as I could think of the Time capsule or the ISP box as liabilities I don’t fig what goes wrong between a Holo Red and a Holo May linked by a Holo provided USB cable… (Holo’s OS & drivers did not solve the issue, neither a certified Belkin cable…)
Just for the laugh I began to very much enjoy anew AHM7EC8B the while it worked without static. Its sound is very very different compared to other EC modulators and even PCM. I know HQP goes to show that there’s no absolute in digital but either AHM7EC8B is phoney or the rest is… Technically how do you explain the laid back, further back in the soundstage (comparatively the rest is more “in the face”) with the drawback that it sounds less lively ?
So the only network device between HQPlayer and NAA is now the HPE switch? Seems to be a big mystery…
It is all about how the DAC is being driven. And to some extent the associated equipment (amplifiers). Different ways have their respective strengths… And which one works best for you is rather personal.
@jussi_laako quick one.
I like modulator ASDM7ECv3. I’m curious though (in my quest to get to DSD512), which of the new EC modulators is closest? UL, Light, Fast or Super?
Thanks!
From my experience ASDM7ECv2, ASDM7ECv3 are very similar, I personally tend to lean towards v2 over v3
ASDM7EC-fast I feel is somewhat like v2 but there is something different with it… I really don’t know how to describe it though.
What I notice on a holo may, ASDM7EC-fast 512+fs with DSD256 sounds more like ASDM7ECv2 than ASDM7EC-fast on DSD256.
Concerning you’re goal to reach DSD512, I think ASDM7EC-fast 512+fs is a good choice as it more efficient but very the close to the v2 sound, which I understand is different than v3, but I don’t think any others sound like v3. v3 has its own little bubble.
Light and ul seem thin to me.
I do like super but it’s more demanding than the other shapers. I usually cannot get super to with on the M1 Max I use with hqplayer.
I’ve used -super for some time now. It has great “body” and sounds the most full out of the -ul -light -fast and -super. -fast has quite a great balance also, it’s slightly snappier and, surprise, faster sounding. -light and -ul are thinner as you mentioned. But at one point I used -light for a long time since the system balance was fuller then. Now with super fast, powerful and punchy sounding Mola Mola Makua preamp, -super is the right choice for me.
I don’t bother with the older modulators anymore, they’re ineffeicient and sound worse (IMO). Also the new AHM7EC8B + DSD1024 gets very little use here. DSD256 with DAC correction has been sounding great lately (T+A DAC200 here).
For me, AHM7EC8B + DSD1024 and it suits me well (Holo Spring 3 KTE).
Reply
super is closest, although still quite different.
I don’t know if it’s just me, but to me -ul has some sonic character similarity with ESS’ modulator.
I personally use -fast the most these days. I still have one Embedded server configured to use -light. But I can see for example super being good fit for some systems or classical music.
a member here pointed out that you need an NAA for this to work. I was running straight from my Mac mini. Not I have a Rpi4 it works
Just an update on my new Mac mini.
I upgraded from the M4 Pro with 12 cores and 24 GB of RAM to the 14 core with 48 GB of RAM
I ran a few tests including speed to start a track, and CPU and memory load.
I used Sinc-L as that was my preference at the time, and because it was demanding and slow to load. I could perhaps have done other options but didn’t have time.
In short absolutely zero difference.
Perhaps unsurprising as online reviews and Geekbench seemed to show no difference in single core performance with the extra two cores.
The memory usage doesn’t seem to go much past 26MB on the worst case scenario I could design, so it doesn’t seem to take advantage of the extra memory either.
It still couldn’t do 512 with ASDM7EC-super with Jussi’s default filters (PSG long or in my case xls, or hires-lp). It can do fast. Again, this matches the performance of the 12 core.
I still have the more powerful machine (turns out when you initiate a return as I did on the lower powered machine you can’t cancel it) but will guiltily return it and get the cheaper one again. Seems like a waste of resources but that’s their policy and someone will get a cheap refurb!
Let me know if you have any questions.
Thanks everyone, I really appreciate your replies.
Maybe I’ll ask another qn.
Is it worth striving for 512 vs 256 on my Holo May?
I’ve read someone on Head-Fi (although I use speakers) who’s had some great and helpful advice who believes there are strong benefits of going to 512.
What does the gang here think?
Generally in some forums (not so much this Roon one) it feels like more of an IT forum than a music one, with talk of PC processors and graphics cards. But is it actually worth it?
Yes I’ve listened but find it hard to tell as I suspect the difference are subtle.
To help compare, if I use the Client, and change the rate there, does it preserve the 48k vs 44.1k part of the bit rate given my DAC can do 48?
I was once, like you, trying to get to 512. I’m able to do some of my favorite tracks in 512 with the M1 Max and I don’t really notice a difference between 512 and 256.
Current setup is:
Holo May KTE -> Holo Serene KTE -> MC462 -> B&W 803D
Lately I’ve been stuck on:
N1: poly-sinc-long-lp-2s
Nx: poly-sinc-short-lp-2s
DSD256 with ASDM7EC-FAST
DSD1024 with AHM7EC8B
DAC corecction Enabled.
With these settings I prefer the overall sound and imaging in DSD256 over DSD1024.


