Recent content by Musician

Onlyoneme - can you please do measurements of 32 multitone IMD at toslink input for the WiiM Ultra measured after the inbuilt dac at the analog RCA output, test signal done with 44.1 kHz sampling . And a frequency response measurement with the same 44.1 kHz ? I would like to see if the toslink...

Lots of people don’t realize the greatness of Wiim products . They don’t do sample rate conversion . This is a great advantage for soundquality, making it sound meatier, more natural and less digital than the average audiophile streamer transport doing SRC. This soundquality advantage for the...

I have done some testing …. https://www.diyaudio.com/community/threads/wiim-ultra-who-has-it-and-who-has-already-opened-it.417905/page-9 I had to try …. USB out from the Ultra , to my DDC with precision clocks and spdif to my rega Dac R . No sound difference compared to Ultra - spdif -...

I hope they read our request :)

A 4th order crossover like the one thats already used in the Ultra for subwoofer and the main speakers are good, but a better power respons in the room below the transition area can be had with an odd order crossover like a 5th order low and highpass filter. Thats 30dB/oct slopes. If the main...

Yes, this is a good idea.

dominikz, you have PM :)

Thanks for this explanation.

You can change the toslink output resolution in the Wiim app , and still select and use the internal 9038 dac line level ( with the toslink output unused and turned off )

It’s the toslink output resolution setting in the WiiM app that apparently ( and strange ) also limits the performance of the inbuilt dac, - if using Ultras toslink input as a standalone dac . The default is 16/48, should be set at 24/96. It would be nice to see more measurements of Ultras...

If you are using the toslink output from a CD player into the Ultra, or a television toslink output and use the Ultra as a dac , you have some issues with the default setting 16/48 . The sinad according to Amirm is only about -85 dB if you look at the graph. If you select 24/96 this issue goes...

Yes

As I understand it , the 16 bit 48kHz resolution setting is not perfect when using the toslink input and the inbuilt dac of the Ultra. There is noise in the signal , and that noise apparently goes away by using the 24bit 96kHz setting in the WiiM app.

Sorry, youre right. Its the output resolution on the WiiM meny that should be set at 24bit 96Khz. I have corrected it

As a wrote somewhere else, I would like the ability to select different crossover slopes for the main speakers/subwoofer and a dual stereo sub out . Instead of only offering 24 db/ Linkwitz Riley lowpass and high pass it would be very nice to have the ability to select 12dB (main speakers ) and...