Jim Austin has posted a review of the Meridian Explorer2 headphone amplifier-DAC ($299) at Stereophile. His conclusions:
“Leave MQA out of the mix, and the Meridian Explorer2 is a fun, capable audio device at a cost that audiophiles—and anyone else who’s accustomed to audiophile prices—will likely find more than fair … But when you add MQA into the bargain, the value proposition changes dramatically: Here’s an opportunity to get in fairly early on a new and exciting development in high-end audio for not much money.”
You can read the full review here.