I owned a Schitt Yggdrasil OG and was considering a LIM conversion. Schitt reluctantly admitted that the LIM has less detail. Less detail reminds me of a Spring 3 KTE. The OG can be bright on a few recordings, depending upon the rest of your system. In most systems I am sure it is fine. When I say a few, one comes to mind, and it may well have been recorded bright. If into mods, virtually no one is, I would recommend a Lampizator Amber 3, and probably a 4. The output caps need to be bypassed, or upgraded to/by V-Cap ODAMs, or ODAMs bypassed with CuFT's. There is an adapter available on ebay that will allow you to convert the 12A? Tube to a 6SN7 which is an awesome upgrade, but the cover cannot be used with the bigger tube. That will blow away any of the DACs anywhere near 3K that I have heard.