Esoteric K-01


Has anybody had an opportunity to listen to the recently announced Esoteric K-01? I was also wondering about the price. Thanks
thefirstchorus

Showing 4 responses by acharpen

Hello,

I never post here but read stuff once in a while. There's not much out there about the K01 so this thread is one of the only places where I could find some information.

I could compare the P05/D05 to K01 and K03 today. I posted some impressions on head-fi and pasted them here. Note however that these impressions are from short A/B comparisons with unfamiliar recordings / equipment so only worth so much...

arnaud

Originally posted on head-fi:

Ok, there's no way I can justify such an expensive purchase but I could not resist going to listen to the K-01 and K-03 for a short while today...

I went to Dyna 5555 first. It was a loudspeaker setup (shame on me, I don't remember the speakers but some fairly high end full range stuff, probably in the 20-40kUSD range). Amplification / preamp was from mark levinson. I could A/B the K-01 and P-05/D-05 (in CD mode). I listened to some Jazz and Vocal (one of the songs being the most famous tune from Norah Jones) and it was not contest: The K-01 eats the P-05/D-05 alive. The most obvious thing is improved clarity and transparency as if the P05/D05 was hazy in comparison. The next obvious finding was that the voice presence and realism was clearly a notch above when listening to the K-01, it was extremely revealing yet natural at the same time. Very expensive but it appears the K-01 can make CD sound as good as it gets. I briefly compared the CD and SACD layers of the Norah Jones tune and while it wasn't night and day, the SACD layer conveyed room ambience more than the CD layer. In Japan, the K-01 is just slightly more expensive than the P-05/D-05 combo so it appears quite a few owner are currently upgrading.

If I get closer to puller the trigger (it would be after I acquire the C32 so may be a while), I will want to bring my existing Stax gear and Yamamoto D/A in the store and do some AB. But, my impression from today is that my YDA-01 stands very very little chance...

I stumbled upon the K-01 again AND K-03 while visiting another store in akiba. This time, I don't know the amplification but loudspeakers were B&W 804 Diamond. I could again compare the P05-D05 against the K-01 and it was even more obvious than last time around. The P-05/D-05 sounded muffled and muted in comparison to the K-01. I listened first to a Jazz SACD I was not familiar with and then the same Norah Jones album, but CD version this time. The voice was just sooo good with the K01, I was so surprised I was enjoying the sound so much because honestly I haven't been a fan of B&W high-end speakers for long time. I always find them too revealing, but somehow it sounded quite good with the K-01 even though it appears to be a very very resolving source.

Lastly, I could switch to the K03 after listening to the K01, listening to the Norah Jones tune (she sings "don't know why ... blablablabla blah" during the chorus, what song is this ? ;o) ). Well, it was enlightening because while it sounded much more open / resolved than P-05/D-05 it was very clearly a notch down from the K01. On a scale from 1 to 10, I would put the P05/D05 at 4 or 5, the K01 at 10 and the K03 at 7 or 8. So finally, after the listening today, I would go for the K01, not the K03. It is so crazy expensive though...

One interesting thing: another person had come to listen to the K01 before me and both stores staff told me the K01 is selling well. Actually, in the second store, waiting list for K01 is 2-3 months (about 1 month for the K03). Apparently, quite a few P05/D05 owners are upgrading. It's hard to imagine in the current economy and the trend to go to dematerialized source rather than old-fashioned CDs (and even SACDs considering stores like HDtracks), but seems like the new Esoteric players are doing well, at least in Japan!

Well, I could only bring back a brochure home this time, but I can imagine making the jump somehow, someday...
dear Matjet,

thank you for your reply. I am hoping to listen to the K01 again with my Stax headphone rig (I would wanna do that prior to purchase), then I'd be better able to address the performance in terms of instrument separation / imaging. I know this is mainly a loudspeaker forum and might feel strange about talking of imaging performance from headphones, but the Stax Omega 2 and soon coming C32 are amazing at precise placement in both width and depth.

It's actually hard for me to put some qualitative attributes (like low level resolution) from the brief listening I made but at least the A/B vs. the P-05/D-05 lead to far from subtle differences!

regards,
arnaud

Dear Matjet,

Re your inquiry about headphone amps: Stax headphones are electrostatic type so you need a special amplifier for them. I use an SRM727A with my Omega 2 (SR-007A). It's expensive on its own (around 1000USD) but peanuts compared to a source like the K01 and especially relative to proper amplification cost to make a good set of loudspeakers sing.

As to what you can achieve with a good headphone system: a lot! Personally, I have moved away from loudspeakers over 10 years ago and never looked back. The resolution and finesse of Stax electrostats is very hard to beat with loudspeaker based system, even in the stratospheric high end region... I had the privilege to listen to Stax's new flagship prototype (codenamed C32) and, imo, it sets a new standard for headphone based sound reproduction.

This Stax headphones have such resolution that a poor quality source is absolutely no go. On the other hand, unlike many loudspeaker systems, this extreme resolution does not make poor recordings unlistenable. It scales up with the source and recording but never sounds brittle or shrill unless you really feed it with garbage.

The bass is of course missing the chest impact of loudspeaker system but it is so clean and tight and goes very low so, personally, I have totally gotten used to this. It should be a nice experience with the K-01, given Esoteric's fame for solid low end reproduction.

Finally, for imaging, against some learning process is in order to reconstruct a plausible soundstage from headphone. But once you can achieve this, there are again very very few loudspeaker setups that will have such accurate 3D placement of instruments like Stax earspeakers (in particular the C32 which throws a wide and deep soundstage while maintaining perfect instrument placement). Again here, I can't wait to see how it will scale with the K-01!

Sorry for the long reply, headphone addict here ;) If you want to know more: www.head-fi.org...

arnaud.
Dear Matjet, I own the current top of the line:
> Omega 2 MkII headphone (referred as SR-007A), retailing for 1500-2000USD I think.
> SRM-727A amplifier, this is the solid state version which retails for about 1500USD (you'd need to check where you live, Stax is notoriously expensive outside of Japan). There is also a tube top end Stax amplifier (SRM-007t I think It's called), which is similar price to the SRM-727A but I prefer the former with my Omega 2.
> The prototype C32 headphone is going to be more expensive, probably in 4-6kUSD range which is getting seriously expensive for a headphone, but again will outperform 40kUSD speakers on several levels.

For the rest, I will post in the other thread...
arnaud