Greetings, I'm just starting into the whole earphone experience. I have Hifiman HE-400 and Sennheiser hd558. I'm driving them from a modi/magni combo, but I'd like to try the "tube" sound. I can see a number of interesting tube hybrid amps out there, but I'm having difficulty picking one that would sound good, allow for a bit of experiment with tube rolling, and be reasonably inexpensive. The amps I looked at so far are - Bravo v2 (doesn't look good enough) - Little Dot I+ - Hifiman ef2a (I do not really want to pay for the dac) - Hifiman ef5 (that's a bit more than I want to spend, but I might swing it if it's much better than Little Dot) - Schiit Lyr (is probably too expensive for me) I also looked at some DIY kits (Millet Max-MOSFET and some Cavali kits) and while I know how to hold a soldering iron, I'm more interested in the outcome than in the amp building process. I'm hoping that folks with some experience of pairing he400 with a tube amp can chime in and tell me... 1. whether I missed a good amp in my price range that I should consider 2. any hints and suggestions on what amp to pick. Thank you!