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Got the same problem with my Kronos 88. Also have the "clonking" problem mentioned earlier in this post thread, and posted elsewhere in the forum. Something is definitely wrong with this line of the RH3 keyboards. I've been playing a Triton Extreme 88 for over 6 years, and have never had either problem. I'm taking my Kronos back to the store tomorrow to see what can be done. Of course, that was the only in the store, so it might be another long wait to get another.

Has anyone received a response from Korg of the reason for these problems with the 73 and 88 keyboard?
I think everyone is very interested in that response. Those who received the Kronos with these defects and those who ordered and waiting to get it soon.

I'm preodered and waiting for Kronos in November in Germany. If this defect all 73 and 88 series of Kronos, perhaps i should wait until things clear up completely and dont buy it.

For now, Korg did not say anything. The first defective keyboards, in Italy, will come to the laboratories of assitance in tomorrow or the next day so I think it will take a few days.
I would like to specify that the problem is very evident on the 88 keys, while the 73 is much lower so that some users claim not to have it. A colleague of mine with the SV1 claimed that he never found the fault but when I probvata I showed him that in some cases notes were blocked shots.

The store I purchased my 88 from has said that Korg will be contacting me directly very soon to troubleshoot the issue.
I'll be sure to report back on what comes out of this investigation.

maxtub and timojito, will wait answer from you. Keep us informed. Thank you!

rravenscraft wrote:Got the same problem with my Kronos 88. Also have the "clonking" problem mentioned earlier in this post thread, and posted elsewhere in the forum. Something is definitely wrong with this line of the RH3 keyboards. I've been playing a Triton Extreme 88 for over 6 years, and have never had either problem. I'm taking my Kronos back to the store tomorrow to see what can be done. Of course, that was the only in the store, so it might be another long wait to get another.

@rravenscraft -

Re: the blocked notes problem, can you confirm that you observe the same behaviour as in the recording in my first post (Sun Sep 25, 2011 1:25 pm, page 1 of this thread)? With the same pattern?

Do you find it particularly affects the lower region of the keyboard (say B2 and below)?

This is becoming scary - I have bought Kronos 88 and it is on it's way to my home (due Thu)! I sincerely hope that it doesn't have these problems..

Can someone post steps to reproduce these problems? That's the first thing I want to test when I get the keyboard and decide if I want to keep it..!

kron wrote:This is becoming scary -

Can someone post steps to reproduce these problems? That's the first thing I want to test when I get the keyboard and decide if I want to keep it..!

Indeed.

This is the best way to go, IMHO.

Davidb wrote:

kron wrote:This is becoming scary -

Can someone post steps to reproduce these problems? That's the first thing I want to test when I get the keyboard and decide if I want to keep it..!

Indeed.

This is the best way to go, IMHO.

I'll put something together as a starting point when I get home.
If I had to distinguish between my 88 and a perfectly functioning one, I imagine I could succeed with just 10 seconds of playing each one. It's just a case of putting it into words...

Didn't this video describe the problem?

http://www.youtube.com/watch?v=YhmbGfaHy7U

it's of a korg SV-1, but it seems the kronos has the same issue.

jick wrote:Didn't this video describe the problem?

http://www.youtube.com/watch?v=YhmbGfaHy7U

it's of a korg SV-1, but it seems the kronos has the same issue.

Thats a horror movie. gulp .

jick wrote:Didn't this video describe the problem?

http://www.youtube.com/watch?v=YhmbGfaHy7U

it's of a korg SV-1, but it seems the kronos has the same issue.

I've learnt tonight that the Kronos "blocked note" problem I'm having is more insidious than that - it isn't something you can reliably get to happen when you want it to (though yesterday for some reason I was having a much higher hit rate at getting the blocked notes to occur). Saying that, if you mess around for a few minutes the issue will almost certainly crop up and drop out some crucial notes in whatever you're doing, so it's exceedingly annoying.

Sometimes the very first note you hit won't sound correctly, sometimes it's a note somewhere in the middle of a phrase. What I've learnt is there's a fair chance of getting it to happen if you play various patterns using the three notes G2/B2/D3 (one note at a time), which interestingly seems to match with the youtube video mentioned above. Note that you might have to try out different weights in terms of how hard you hit the keys - it seemed that playing heavily and then slightly softening up tended to bring up the problem up fairly often. In terms of tempo, I would estimate I was doing about 240 key strikes a minute total - e.g. playing the repeated pattern G-B-D roughly 80 times a minute - not particularly fast by any means. The uploaded audio clip in my first post (see page 1 of this thread) has an example of the problem and the kind of repeated pattern I was playing at the time. As I say, though, I haven't hit upon a foolproof method to bring the issue up "at will"...

I spoke to a West Coast (USA) Korg rep (Peter) today about this. He took my information, and said he'd speak to a senior engineer about this issue. My unit is in the mid-500 serial number range.

I mentioned this thread - he's already familiar with the forum.

Just to confirm - I've looked at the midi output, and nothing is transmitted on the second muted note attacks. Likewise, the Kronos 88 performs fine as a controller for SW or other HW pianos/modules.

Playing the Kronos from another 88 key controller does not exhibit this issue. On my unit, the problem is internal to the Kronos, and happens only when you play from its own keyboard.

I've posted a video of this problem. The first muted note happens at around 0:13. I play the keys deep so that I can repro this issue easily, but it happens playing further back as well.

http://www.youtube.com/watch?v=Y2lV22JU47Y

Wow

Umm.. I will not buy the Kronos 88 until we get official clarification from the Korg, Japan. If representatives of the Korg are reading this forum, please, consider my opinion.