Much deja vu here.  What y'all are describing as the positive effects of Wyrd sound an awful lot like what I heard when I started using the iFi iUSB with my Concero about 18 months ago.  For less than half the price.

May have to spring for one to use with GO 450.

Anyone have a picture of the inside of the unit to post?

Judging from the positive feedback from here, the Wyrd should improve on my PWD Nuwave USB connection. 

Test #2

• Laptop --usb--> AGD M7
• Laptop --usb--> Wyrd --usb--> AGD M7
• Laptop --usb--> Wyrd --usb--> OR5 --i2s --> AGD M7

Setup 1
M7 running the firmware version prior to the current one (it's June 29, 2014). This firmware seemed to go to some length to correct the tonal oddness of the prior M7 USB. The prior firmware gave the M7 a certain stridency and overly thick bass. Sort of a U curve in effect. Also, stage depth while distant was extremely shallow. This firmware increases the depth of the stage somewhat. The U curve tonal response is now gone. The bass thickness is still there, however the treble stridency has largely been corrected, resulting in a more consistent, perhaps dark tonal response.

However, all rest the sucky things about the built in M7 USB are still there. A tendency toward muddy thick mushy unclear bass. Blobular indistinct stage and still somewhat a shallow depth. Poor resolution and microdynamics. Grey background. Still what I could consider a GOOD DAC, a good PCM1704 sound, but this just doesn't cut it for me.

Setup 2
Wow! Holy Schiit. Blackground becomes black. Things now in focus. Precision in note rendering. No blurriness of the built in USB. More detail. Could this be better than the OR5? Or maybe almost as good... I listen longer and I realize a stronger than usual "ssssss" in Glen Frey's voice. This is exactly the turboclock effect I mentioned earlier in the OR5 thread (references and link above.) I know the M7 does has this tendency to have some stridency in the USB despite whatever firmware, so perhaps the Wyrd simply brings this out more along with all the other good things. Still, it's not something which is a huge chance. We are still splitting atoms here.

As an aside, just to make things clear, I now feel the turboclock on the OR5 is a good idea with the M7 as long as the OR5 has a good power supply, just not necessarily with the PWD2 that I owned or at least without a good power supply for the OR5.

Setup 3
So now I'm getting worried. Thinking whether if I should even make this post so I can dump my OR5 on HF or the 'gon before everyone knows.

Well, guess what? It's not even close. The OR5 (with the Wyrd in the chain) simply destroys the other setups. The precision of space, stability of images, "centering" as Maxvla likes to call it is just on another level. The microdynamic swings, the nuances, the finesse, the microdetail. The OR5 / Wyrd is just on another level. No stridency. Just delicacy. Can barely tell the M7 even has "PCM1704 bass" (yes, there is such a thing!).

Final Comments
Well, that's it folks. I'll try to dig up some other DACs to try out. I do know that the Wyrd is a good match with the Gungnir. Let's say I have heard Wyrd+Gungnir at some other time before and can vouch for that. (Ask Anax too for another data point.) OR5 is overkill for Gungnir (Gungnir won't scale and OR5 is x2 the price of the Gungnir), but Wyrd is just about right at $99. Definitely more effective than the Audiophileo AP1 without the PS (which didn't do anything.)

Would it be resonable to say that if my ears don't notice any audioble difference between M7 via USB32 (w/ latest firmware/drivers) with or without a Wyrd then I probably should save money skipping the OR5 ?

I just added a wyrd to my PWD usb source connection.
I can now quickly switch back and forth from cat7 to usb.
I have them level matched and can switch directly from one to the other using the remote.


Thus far with only 2 hrs on the wyrd, the differences between these 2 input source paths has been reduced even further. 
I still have one more tweak to the usb 'delivery system' to make.
But I suspect (or hope) that with more hrs on the wyrd and with additional improvements, the usb will 'catch up' to the cat7 signal path.


I'll feed wyrd and run it 24/7 for a while and monitor the changes.


JJ
ps I'm tempted to open it up and snap some pics but I'll wait until I commit to buying it first…
But I must say it is surprisingly heavy for such a tiny device.