IMHO, the A&K models are (and have always been) poor value for money. If you want a really great-sounding DAP that doesn't allow streaming (local playback only), I'd recommend the QP1R or QP2R. Both are really good and do sound (slightly) more resolving than the V30. They also out-perform all A&K models, with the possible exception of the A&Ultima SP1000, which I've not had a chance to do a careful A/B with yet. (But $3500 for a DAP with no Playstore support?!?)
The FiiO X7 mark ii I like a lot. Its sound quality I find very slightly better than that of the LG V30, as long as you're willing to use its balanced (2.5 mm) output. It has about the same output impedance as the V30 (~1.2 Ohm). It has no re-sampling issues (offline Tidal playback without the cruddy re-sampling artifacts!). However, you will need to be prepared to carry another device around with you - and FiiO's software still has a few little bugs. Remember the last time your V30 playback stuttered, or an app froze, crashed, and/or forced you to reboot the device? Me neither. You have to be prepared for some of this with the X7ii.