I thought I should share my initial thoughts on how my current headphones pair with the Kenzie Encore deluxe model, which I've had for just a few days now (always using the 32 ohm tap, with stock tubes). Note how all of the three headphones are pretty low-impedance... My point of comparison is what has been my primary amp up til now, the (solid-state) HeadAmp GS-X mk2.
Utopia:
- There's a slight bump in the bass by a couple dB compared to the GS-X (and I assume compared to most any solid state amp?). This could be either a welcome change or a fatigue-inducing one depending on preference. Anyway it's minor enough that a little EQ would do fine if desired.
- Frequency response is otherwise similar.
- Overall presentation is actually very similar and comparably transparent to the GS-X, which is saying something.
- Despite being not-that-high impedance, I'm finding the Utopia to be completely viable off the 32 ohm tap.
- Wish I had more to say on the Utopia. Mostly, I need to start listening to them again more frequently.
LCD-MX4:
- These are really sensitive planars and I can't turn the volume pot past 8AM (!) without crying uncle.
- Frequency response sounds accurate to me, and comparable to the GS-X.
- The Kenzie lends just the slightest warmth in the midrange and bass.
- Bass extension though is not quite as deep nor as tight as the GS-X. That's a slightly unfair comparison, as the GS-X mk2 is a different type of amp and it does bass really really well, but still worth mentioning. I guess alternative tubes might be worth exploring on this count.
- Soundstage is slightly expanded while imaging towards the center loses some solidity, which feels like a net loss.
- I'm reluctant to admit it but I prefer my solid state amp compared to the Kenzie Encore @ 32 ohms. The GS-X just drives the MX4 with an "authority" that would be hard to match. These are my favorite headphones at the moment so.
Ether C Flow:
This one was a pleasant surprise.
- Soundstage opens up noticeably, offsetting the closed nature of these headphones to a large extent, and a really important improvement overall. Imaging is also solid.
- The sound is a shade thicker and more "substantial" than the solid state amp in a way that sounds right to me. I'm especially liking the boost in euphonics I hear with electronic stuff and synth-like instrumentation at the moment.
- Frequency response is just as even across the board, save bass extension which again doesn't run quite as deep.
- They're also sounding very good for watching anime, which may sound strange but that's one of my favorite tests.
So it's been a fun listen so far. The Ether C Flow is something of a revelation. One or two higher-impedance dynamic drivers are undoubtedly on my horizon, I can tell. And tube shenanigans.