Some DACs I am Considering-Any thoughts?

regarding AM Tubadour break-in. 30 days to start really smoothing out and three months for those big duelund caps to become liquid sounding. an exercise in patience. 

Retired electrical engineers and music lovers designed and built the Taiwanese COS Engineering group of DACs, the H1, D1 and D2v.   I have heard the H1 and own the D2v ($5000 list price),  This is a big step up from my trusty, tubed EAR Acute CD player.  It has a 1 second buffer delay that works (compared to the non-delay switch useful for video playback syncing).  The H1 ($2500 list price) has dual headphone jacks.  It is a very open sound with deep, tight bass.  My D2v is a warmer sound while ultra detailed.   I have not heard the other DACs mentioned.  I have heard very expensive Meridian and Meitner, ARC and some other DACs and prefer the COS at the price.  Also, COS Dacs don't respond to footers, they are very well designed and constructed boxes.  I tried various Stillpoints and SR Mig SXs as well as lesser footers (soft, hard, etc).  

I have owned quite a few of the dacs on your list. This is my opinion in my system in my room. I’m not knocking any of them.Denafrips - very nice. Resolving but a bit too much for my tastes. 
MDHT Pagoda - relaxed and warm with a nice tube sound, It may have been a keeper but I was looking for something with a little more sparkle on the top end. Maybe it’s because my entire system is tubes. It may sound better with SS. But still very nice especially for the price. Also, my circuit board went kaput and the owner of MHDT sent me a new one free of charge. 
Lampizator - I’m sorry, I can’t remember which model. It was expensive and it really bummed me out because I wanted to like it so much and it was horrible in my system. It was almost like I had it hooked up incorrectly but I took it over to my friends house and it was really nice. I sent it back and got a refund on their trial period. It’s worth a listen.
Audio Note 3.1x balanced. Pricey, but there is none better IMO. You will no longer be looking for another dac. The cons are: price, it took me 6 months to get it and it will only play red book, no hi-res files. But it does such a good job with these you won’t need it play hi-res. However, I have 6GB of hi-res and DSD files so I regretfully sold it. I now have a Linn Akurate DSM and am really happy with it. I see a few folks have mentioned Moon/SimAudio. I had the 380, I think and was pleasantly surprised but how good it sounded. My 2 cents.

Consider the Musician Pegasus R2R dac.  I just hooked mine up in my exercise room system today and even straight out of the box, it sounds superb.  Very clean, clear, dimensional with great presence and impact.  All for 1100 bucks.  

JB505,

Your input is most helpful. Thanks. So your suggestion would
be that I buy the AudioNote 4.1 DAC for $3k?