I just picked up a Gilmore Lite mk2 for use with HD600. This thing is ridiculous. Super smooth but with really snappy transients, while still retaining the clarity and resolution of my DAC. I would take it over Ragnarok, which I bought recently but returned due to QC issues.
I previously heard HD600 and HD800 on GSX mk2 and it was very dynamic and lively sounding but it seemed to spotlight the 4khz and 6khz issues of these headphone specifically.
In all honesty Gilmore could be endgame for dynamics for me but I’m also now intrigued to see what Justin can accomplish by revisiting the GS1...