Well, so it would appear. I just connected my K1000s to my Muse Model 100, which is a stout 100 wpc (8 ohms) MOSFET amp, usually provisioned to power PSB Status Golds for serious rocking out. The PSBs might not get much love for a while now that the K1000s are hooked up to the amp. I've got a custom preamp, unity gain (but active), a very simple hand wired preamp someone built years ago, and with the volume up around 10 o'clock it is huge.
The sound is a bit bright, but very rich and vivid, not harsh at all. The K1000s could perhaps use some more bass extension, maybe a tube preamp would sweeten it up, but they are just clear as a bell and sound fantastic with this setup, and no problem rocking out with pretty much everything I've thrown at them.
I can't believe a pair of headphones enjoys being driven from a 100 watt amp, even though it isn't really 100 watts since they are high impedance compared to 8 watt speakers. On that topic, the K1000s aren't 220 ohms, they are 120 ohms (so 100 watts into 8 ohms will be ~8 watts - although as pointed out the headphones likely aren't a constant 120 ohms through all freqs, and the amp's output probably doesn't scale linearly by ohms).
Yikes, though. I think I have to find another pair of these as spares just in case! With the big power these are even sweeter than my original impressions and I was loving them through my Headroom Micro Amp (at lower volume and with perhaps a bit of a skewed frequency response and some slight, yet euphonic, "fuzz"). On that note, I had mentioned the Micro Amp in another thread, and will later update that (or start a new thread) after doing a head-on comparison between the Micro and the Muse. For now, though, I'm not going to unplug these from the Muse or stop listening to them until I pass out tonight.
