Recent content by mdsimon2

The ones I use are from Ian Canada - > https://github.com/iancanada/DocumentDownload, item #23. Kaamos Tech also makes some, but they are only 8 pin (4 signal + 4 ground), fortunately you only need 8 pins for the WM8805 board. I don't think any pin to U.FL connection is ideal, but in practice...

Looks good. Only thing to keep in mind is converting from pin headers to U.FL. I used these boards from Ian Canada that I had for previous projects -> https://github.com/iancanada/DocumentDownload/blob/master/Adapters/BIIIadapterPCB.JPG. They work well with the WM8805 boards as they have the...

What audio interface are you using that cannot be clocked via SPDIF? Seems like it would be easier to just get an audio interface that accepts SPDIF. Michael

I purchased an audio interface online from guitar center that had some dead channels and I was able to return it to a local guitar center. Pretty sure I just went in and didn’t need to contact customer service. Michael

Very cool, thanks for sharing! Another thing that works well is using nginx to forward to a Mac or PC on the same network. I have my UL Mk5 connected to a raspberry pi and use Cuemix on a Mac laptop, just need to enter the IP address or host name of the raspberry pi in Cuemix and it acts like...

Yes, all digital. I mainly wanted to verify that clocking / delays were consistent between input / output and between different outputs. An RME Fireface 800 was used as the REW output and input device. TOSLINK out from the RME routed to the SPDIF to I2S board. AES output from the I2S to AES...

I tested this out and did not beat the rat nest accusations lol. I could clean it up a bit by soldering pin headers to the buffers but was trying to make it work with what I had laying around. I also used two pin to U.FL boards which aren't the tidiest. I ended up needing to use 2 buffer boards...

Very cool, thanks for sharing. I will definitely try this out! Michael

Good info, thanks for sharing! I can confirm that the UR23 currently works with the RPi5, but I should warn that it has been an on/off issue. It has worked in the past and future kernel updates have broken that functionality. Michael

I am 99% sure Amir inadvertently had two channels summed which is why 6 dB of attenuation was needed to avoid clipping. You would not get such clipping with a 1 kHz test tone due to intersample overs. Michael

That is clear from your review. What isn’t clear is how much preamp gain (if any) was applied for the dashboard and THD+N vs level measurements of inputs 1/2. I would have assumed gain was at minimum (+0 dB) but this isn’t clear from your comments about increasing gain and then backing it off...

What spec are you referring to? The combo jack line input has a specified max input level of +16 dBu (4.9 V). It doesn’t take much gain to hit that when starting from +14.3 dBu (4 V). In your review you seem to claim the specified max input level for the combo jack line in is +18 dBu but...

The original M4 design used an ESS ES9016S but subsequent revisions use an ESS ES9026pro (same as UL Mk5). I haven't seen a teardown of the M6, but I assume it also uses an ES9026pro as the manual has the same specs for the M4 and M6. I believe the M4 design only used 6 of 8 DAC channels (4 for...

Dedicated Line Ins (inputs 5/6) are rated better than the combo TRS/XLR inputs (inputs 1-4). Would be interesting to test those and see how they do. It looks your -100 dB THD+N matches the spec for inputs 1-4. On the M4 you found a similar drop in performance with the combo inputs, so it isn't...

Where are you getting a claim of -120 dB THD+N? Seems pretty clear they are claiming 120 dB dynamic range. It looks like the spec table in your review just has the headings shifted by one column which may be causing confusion. Michael