Pm3 has just arrived. Listening to them through my Fiio X3ii right now. Seems to drive them well. Will plug them into my Vali 2 later, though these were bought for mostly portable use. Will also try through my Valhalla 2, though I suspect that won't be a very good pairing.
You may be surprised. I used an original Valhalla years ago with a Grado HF2 and I rather liked the combination. That assumes you were talking about impedance matching as opposed to sound signature matching as planar headphones are not very impedance matching sensitive, or so I believe is the case.
Can someone please explain to this noob a few macro concepts, please. I promise, I've read a lot online, ya'll know I've been actively participating and contributing, trying to learn.
So - what, exactly, in very plain uber-noob English, is the relationship between ohms, impedance, and the devices one is pairing. What, exactly, is impedance as it pertains to what I am hearing? Same question about ohms. What, exactly, is ohms as it pertains to what I am actually hearing? With all respect, the EQ frequency response curves still baffle me, I don't understand what I'm seeing. That doesn't clear it up for me. Yes, I can move the sliders up and down, and I can hear some differences, but I couldn't tell you exactly which sliders are affecting exactly which specific tones I'm hearing.
For instance, I pair my iphone with my PM3s, which I am loving. I also jack the PM3s into a reference Yamaha AVR. To me, the AVR seems to drive the PM3s better than an iphone, right? Which is really excellent when I don't have to turn the volume on the t.v. up just because the a/c is on. But, I was a bit disappointed by the pairing of Dragonfly Red + Apple CCK + iphone + PM3. I walk my dog with my PM3s and the first obvious no-go on DFR was bulk, for me, I mean c'mon. I don't want to remove what's in my pocket on the subway or in the middle of NYC showing everyone around me what gear I have. That is not portable, for me. The second and worse no-go was loss of headphone volume & track control. For truly 'portable,' that's just a non-starter. I wouldn't even have known to ask the question about hp track & volume control before trying the DFR. It would never have occurred to me the DFR can't do what the Sine Cipher can do.
So I'm eager to understand please - what, exactly, do ohms and impedance mean in simple terms of what I am hearing on my PM3s. What, exactly should an external DAC/amp or hi-def portable music player do, as defined in the context of ohms and impedance, that should theoretically make it a 'good' pairing, or a 'not good' pairing with the hp's one chooses. How and why does the Yamaha AVR 'drive' the PM3s better? What is the 'vehicle" the Yamaha is using that better drives the PM3s? Is it just sheer power - the Yamaha of course plugs into the wall, the iphone is just using a small battery.
I realize these are basic questions, I'm just eager to understand. And try as I may, all the curves and frequency charts no matter how long I stare at them or read about them, don't really clarify it for me.