Hi HFF Started down the rabbit hole of headphone and tube amp exploration. I'm a Grado fan (SR60, SR225e) and looking for my first tube amp that is less than $200 to tame the high-end of my headphones. Funny as I really didn't consider the high-end and sibilance till learning more. Knowledge...

My current listening setup consists of :- Nokia 7 plus phone as music player SMSL M6 DAC SMSL T2 TUBE HEADPHONE AMPLIFIER WITH UPRATED MULLARD TUBES SENNHEISER MOMENTUM 2 ON EARS SENNHEISER HD280 SONY MDR1A BOSE QC25 SOUNDMAGIC HP200 VARIOUS BUDGET IEMS , FAVOURITES ARE 1MORE TRIPLE DRIVER My...