IEM 2 of 3 from Periodic Audio. I really enjoyed what I've yet heard of their high-end offering, and I'm excited to see if this offers similar performance. Again, Periodic Audio designs, machines, and tools every single element of this headphone in-house, which is something that I haven't often seen, particularly from in-ear manufacturers. This has gone great for them thus far, so let's see if it continues.
The design is almost exactly the same as the Beryllium IEM (and, spoilers, the Magnesium IEM as well). My commentary remains the same: although I feel that Periodic Audio could have done a bit more to separate themselves from the crowd here, they made no design missteps, everything remains attractive, and the only highlight is their logo, which is a nice attention-grabber. Again, as with the Beryllium, I'll get to what matters, sound, next.
The first thing that struck me about these headphones was their control of weight. Not in the physical aspect, but in terms of their sound. Given their relatively bass-heavy sound signature, acoustic genres immediately took on an increased sense of weight and heftiness in their presentation, and I'm not sure if that's a positive or a negative at this point. I'll be sure to figure that out before I write my full review, but I thought it was worth mentioning.
As mentioned above, these headphones do lean into the bass. Sub-bass has a really good rumble and shake to it, without seeming out of control. Mid-bass is slightly more emphasized, with a really great control of texture. The midrange is somewhat recessed, but vocals stay relatively up front. Some instruments (mandolin is the one I've noticed thus far, apologies for being such a heavy listener of Chris Thile) can come across as a bit unnatural, but we'll again see if that holds through over the full review period. Treble is emphasized, yielding this weighty sound signature a good sense of air and space. The soundstage is slightly diminished compared to the Beryllium, but still very worthy of commendation when compared to the majority of closed-back IEMs. Imaging, again, suffers a little bit, with more blend and slightly less control in movement, but it still seems up to par, at the least.
I'll continue to revise and refine my opinion of these headphones over the next few weeks and come back with a much more informed opinion of them. The impressions of the Magnesium IEMs, the last from Periodic Audio in my possession and their entry-level offering, should post in 15 minutes from now.