Check the manual, u can read some tips about each filters, select the one that suits with your music.
Modulators recommended are the one that finish on EC.
My setup some post ago is exclusively for heaphones
@jussi_laako With the DSD256 on my Pegasus via my ZenStream as my NAA target (7,5v / 408Mhz), I have just swapped the ASDM7EcV2 I have been using for months for the ASDM7Ec 512+fs.
I have to admit Iâm a bit confused. It seems to be a bit more fluid (jazz with poly-sync-gauss-long).
Maybe itâs just the newness⌠dusting offâŚ
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Any R26 owners that can share there filter settings and preference for DSD vs PCM here ?
On my Singxer sda-6 I settled with upsampling to DSD256 with filter settings p-s-g-l and p-s-g-h-lp with ASDM7ECv2. This sounds excellent.
R26 however produces a low level noise at these settings which are noticeable at the beginning and end of each song. Can anyone here confirm the same behavior on there R26?
Not sure if this can be fixed, for the time being I upsample to PCM768 with LNS15 dither. Unit is still burning in so itâs to early to judge.
I am very interested in your comments about the R26. I have been thinking seriously of buying this dac but if it has problems with HQP and DSD that would kill it for my purchase. I will follow your progress with this and perhaps any other owners that comment. That Gustard has received rave reviews and had me very interested but I am a dedicated HQP user for many years. If that R26 does not play well with HQP and DSD I would lose interest in it.
I can attest that these settings (nothing new to this forum) work very nicely with my new Holo Audio SPRING 3 KTE.
Thank you, @jussi_laako for the (email & forum) support and for HQPlayer!
Thank you all for sharing your experiences with the various HQPlayer settings!
(MacBook Pro / M1 Pro / 32GB RAM with Roon into HQPlayer -Ethernet-> Innuos ZENith Mk3 (set up as NAA / in HQPlayer endpoint mode) -USB-> Holo Audio SPRING 3 KTE -Transparent Super RCA & XLR-> Sugden IA-4 -Transparent Super SC Bi-Wire-> PMC fact.8 Signature)
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I am using those settings now, and it does sound excellent. Itâs also not too bad on the CPU, 10% usage here (44.1khz) on my Ryzen 5950x (which is little more than one core usage, so over 14 cores left for other things).
I prefer PCM upsampling and these are my actual settings:
But i am still not sure what DAC bits are correct. @jussi_laako gave me the advice to use 16 Bits (just to be safe) but i think that 20 Bits sound a bit better. But that could also just be a placebo 
@jussi_laako Can you may tell how the wrong DAC bits-settings should affect the sound? Thanks for you help 
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If you set it higher than linear region of your R2R ladder, you get increased distortion especially on low level signals. So it is safer to set it too low as it has much less adverse effects than setting it even one bit too high.
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Thank you very much
Can you may say what dac bits to use based on this measurement of the r26?
Thanks again
16 bits is probably safest (allowing for measurement errors etc)
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This seems to be a popular DAC at the moment.
Lots of people have been asking Jussi this question on different threads and forum 
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@jussi_laako Hello, I have a Rockna Wavedream and I tend to prefer the Hybrid filter (Rockna own filter). The WD accepts accepts as max input frequency up to 384khz, then upsample internally up to 768khz.
I know that itâs always better to experiment/test with listening but, technically, which HQP filter would your recommend to use to feed the Rockna used with hybrid filter?
In theory I would say one of the linear HQP filtersâŚthen Rockna will do the last mile in Hybrid.
Or is it better (as general rule) to use only filters in HQP and leave the Rockna in NOS?
Thanks in advance
You can choose which combination you prefer. There is so much space between content and Rocknaâs filter in this setup, that you can use any of the HQPlayerâs filters you like. But in this kind of setup you should always use Rocknaâs linear phase filter, this way it doesnât mess with the HQPlayerâs filter.
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Thanks @jussi_laako
So I understand that, for the last mile on Rockna, I can use either Linear (if I want to reach the 768Khz) or NOS (if I am ok with playback up to 384Khz).
Hybrid and Minimal filters on Rockna should be avoided because it messes up (I guess âphase wiseâ) with HQP filters.
Correct?
Does anyone have good results running the EC modulators for higher bit rates on DSD?
I know they are significantly more demanding but Iâm throwing some decent hardware at HQPlayer and the CPU and GPU usage seems to be well within limits but I still get very frequent drop outs!
Specifically: AMD Ryzen 3900X with a GeForce 3090 feeding a Holo May. (Iâm omitting my NAA there because Iâve done testing with directly plugging the May into the audio server as well as swapping cables etc!) Running poly-sinc-gauss-long and poly-sinc-gauss-hires-lp with ASDM7ECv2. All 256 bit rates work perfectly. 512 is ok at 44.1 and occasional drop outs at 48 depending on source resolution it seems. Any rate at 1024 gets frequent drop outs.
CUDA offload and Multicore DSP set to grey (so is adaptive). 20 bits set, and various buffers tried. Just to be clear Iâm not criticising HQP⌠loving the results Iâve been getting and I know Iâm pushing the limits of what can run⌠just intrigued if itâs doable and if Iâm doing anything wrong! Thanks to Jussi for such a cool piece of software.
Also, sorry for noob question: What is the meaning of the bit rate field, and the difference for example between 44.1 x 512 compared to 48 x 512 (other than, higher numbers = more frequency = better)
Try to set Multicore setting to forced (checked) and see if that gives you difference in performance.
Interestingly this really helps for 48 x 512 which is now smooth and CPU resource consumption looks a lot more spread out (thanks!).
Anything @1024 still drops out a lot.
No problem.
I think that 1024 needs insane amounts of CPU power to work smoothly. I wouldnât be too concerned if it doesnât work smoothly on your setup.
Yes, exactly, which ever you find better. Probably both provide good results although slightly different.
Yes, this is correct. If you have a non-linear phase filter in chain, it is best placed first in the chain. Otherwise youâll get somewhat strange phase mixture.
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