A few weeks ago, I took a gander at the current Periodic Audio flagship, the Carbon.  And today, I’m checking out the less-expensive but still-competitive Beryllium.  This snazzy-looking IEM sells for a fair $249.  But in addition to looking downright gorgeous, it also sounds incredibly musical.  In fact, I’m not even going to use lead-in questions here.  If you’re looking for quite possibly the most rewarding, magical, musically-engaging IEM under $300, read on.  If not, back out now.
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https://majorhifi.com/periodic-audio-beryllium-review/