Esoteric K-01 Ordered.

Nice !!!! Congrats!!!
 
Audioseduction said:
Any updates?
Click to expand...

Yes George, there are:
The K-01 duly arrived and was connected to my Burmester 911mk3. I loved it, apart from one thing, every time that there was switching within the K-01 this emanated as pops through the speakers. Changing inputs, any menu changes, when an SACD was detected all resulted in pops through the speakers, usually more than one. There were other, seemingly random, pops, and occasionally as a CD ended.
Both Esoteric Japan and my dealer said that it wasn't a faulty K-01, but an incompatibility somewhere in the system. I did have the offer of returning the K-01 for a full refund, but as I really liked it, and the retail price had increased by 33% just after I bought it, I was reluctant to do that. I tried everything I could think of to get rid of the pops but unsuccessfully. I was at the point of returning it when two things happened.
An Esoteric A-02 was advertised at a dealers, these are second only to hen's teeth in rarity value in the UK, it's been impossible to buy them new for a very long time.
Then I had a phone call from the UK Esoteric service engineer, he was trying to borrow a K-01 and A-02 from Germany, and bring them to my house in order to isolate the problem. His opinion was that almost certainly it was an interface problem between the K-01 and 911 mk3.
The A-02 was priced very reasonably, so I took a big gamble and bought it, and it cured the problem.
Initially it didn't sound so good, but plugging it into the wall socket instead of the 948 conditioner changed it completely for the better.
I'm now a very happy Esoteric K-01 / A-02 owner.
 
Colin,

I am so glad everything is working well. It has been a long road, now enjoy.
 
Colin, great to hear that your problem was corrected to your satisfaction. I have never heard any pops from my K03 going into my McIntosh gear. I am very happy with my K03. I have never listened to a K01 and don't want to since then I may want one.
 
PMCH said:
Colin, great to hear that your problem was corrected to your satisfaction. I have never heard any pops from my K03 going into my McIntosh gear. I am very happy with my K03. I have never listened to a K01 and don't want to since then I may want one.
Click to expand...

Thanks Paul,
When you operate your K-03, presuming that it's the same as the K-01, you can hear very quiet clicks from the unit. These clicks were being transmitted through to the speakers when the K-01 was connected to the 911mk3.
 
No, I have had a K-03 in my system in very early days, they don't "click" "buzz" or make "coffee" send it back!!!
 
Hi Colin, perhaps because I have my K-03 going into my C2300 preamp and not directly into the amps, I don't hear any noise.
 
iamhifi said:
Congrats!!! The pops could it be a impedance problem, why not try MIT cables that allow you to adjust.
Click to expand...

Angel, I don't believe that it was an impedance problem, the output impedance of the K-01 lies within the range of the output impedances of Burmester pre-amps.

This was part of Esoteric Japan's response;

“Depending on input circuit and so on of connected amplifier, there are some cases that noise occurs by mute on/off.”
This mute is part of the switching circuit and not the volume mute.

Now that I have the A-02 I no longer have a problem with pops.


PMCH said:
Hi Colin, perhaps because I have my K-03 going into my C2300 preamp and not directly into the amps, I don't hear any noise.
Click to expand...

Paul, the noise that I hear is a very quiet click, and comes from the K-01, not through the speakers (using the A-02). If I hadn't had a problem (using the 911mk3) then I may not have even noticed it.
When changing inputs the click only occurs if there is something connected to that input, and it is switched on. I do get a click with every menu change though.
 
My K03 clicks as well when it switches formats etc. Like going from 44/16 to 96/24, it is a very quiet click, and doesn't go through my system, only from the K03 itself. I use a Mc C500t for my Pre...I don't find it annoying.
 
I have sold 3 of the K-01 units this year - never have been able to listen to one.
Will be getting in another this month and may just keep it as a demo or transport only.
Currently have a D-02 I am using direct to my Pass Labs XA160.5 amps.
I believe the D-02 has about the same setting options discussed here.
My next step is to take advantage of the USB input for music digital files via JRiver Media Center 19.
Anyone here do this with your K-01?
 
I'm currently enjoying my K-01 with no digital filter, no up-conversion and with the XLR output gain set to 0dB.
My previous foray into computer audio was a disaster (pre K-01). I'm in no hurry to try it again in the near future, maybe one day?
 
Congrats, Colin. No doubt you'l love it. I added a K-03 to my system this past Spring and really enjoy it. I did want to go all the way to the K-01 but I apparently was afflicted with a rare case of compromise! But I'm not disappointed at all. I look forward to your experiences....especially with which filters you like best & why.

....oh....just realized you are going straight with no filters....as I am. I was curious of your opinion of them had you chosen to engage any of the filters....
 
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Jazz Rock,
It was also last spring when I received my K-01.
For several months I changed the filter and up-conversion settings weekly, using it normally, but playing the run in disc when I wasn't listening to it.
By "normally" I mean radio and TV from the satellite HD box into the co-ax input as well as CDs/SACDs.
I have the DVD player connected to the optical input, and I used this to play the run in disc on repeat, I didn't want to wear out the K-01 whilst running it in.
This meant remembering to change the settings on all three inputs (I haven't used the USB input) at the same time.
I feel that the no filter, no up-conversion setting, to give the most natural sound, although, because of the way that I ran in the K-01, I can't be sure of the actual run in hours I have on each filter. No doubt I'll revisit the various filter / up-conversion options in the future.
I prefer the 0dB setting to the +6dB setting and found that connecting the signal ground to be very worthwhile.
 
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