Though I noted comments on the Loxjie, I haven't seen any direct comparisons. So here's mine. I've had the Loxjie P20 for about a year. I've tube rolled between the stock, GE JAN's and settled on a pair of Voshkods as my favorite.
I have an FX Audio pre-amp, that really didn't add any tube character with 6J1 tubes. I bought this XDUOO MT-602 hoping to add the flexibility of a more powerful headphone amp. That was a big success for me.
I...