nitrokojote
New Head-Fier
These IEMs do require a decent bit of power. I'm lucky that the 60mA (per channel) was enough to power these for the most part. I had done a measurement of these as well with ARTA. I used pink noise, 32K FFT, and let it sit for 30 seconds at around 75dB SPL. I'm not using a standard GRAS, or a GRAS coupler clone from Taobao. I'm only using a lav mic I calibrated with Sony MH755. Notice that these are still somewhat recessed in the mids. I was right on my hunch about 2-6K missing a lot of energy, as well.IDK about powered correctly - but I’m not an engineer, so I’ve always just referred to this as the ‘mystery of power’ - you can have headphones that are “easy to drive” and get plenty loud with good frequency response driven from a smartphone or not very powerful dap - but then you feed them some power and it’s not that they get louder, just much wider, more full, more everything. The oppo pm-3 (the budget planars of their day) are one such example. If you look through that thread you’ll find plenty of comments like ‘boring’ ‘low bass’ ‘over-hyped’ etc. The same type of comments that are trickling in here and will probably increase as more pre-orders get delivered. (I actually got my hand slapped and some posts deleted for going off on folks who were posting in their constantly just to crap on them and pimp other headphones - but I probably deserved it - so now I just ignore those type of comments.) The P1 might never be your thing, but I say all this because I wouldn’t give up on them yet. Burn in is real. Brain burn in is real. And who knows, maybe you’ll eventually get an amp that pairs great with them and then you get to rediscover a headphone and you favorite music all over again.