Korg Forums

[miljantoto]

[Pedja]

Obvious distortion in Prog I-A012 F.McComb Mark I Ep., when you play a chords. From what I can hear in chromatic German Grand, for me sound is strange, but I can't hear distortion. I can say same for German Grand, like when heavy playing piano, with high tension wires. That's my opinion for prior sound too. Really only clear distortion which I can noticed is in sample of ep. piano sound.
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Pedja
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Kronos X73, Kurzweil PC3LE8, ASM Hydrasynth, Arturia Keylab mk2 61, AKAI MPC Key 61
My music: https://soundcloud.com/pedjak-1
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http://moca.virtual.museum/autogallery2017/autogallery_kalajdzijevic/
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http://moca.virtual.museum/autogallery2019/autogallery_kalajdzijevic/
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[GregC]

[miljantoto]

GregC,

Thank you for answer,
I will keep trying to find solution.
Maybe it is problem with one of [b]mute circuit transistors[/be] as one of forum members SynthKeyWizard explained in his post and solved it by replace it.

Very interesting thing is that you can cleary hear teh same distored sound on new Berlin Grand on DEMO by Katsunori UJIIE
Same sound if you hear carefully

http://www.youtube.com/watch?v=vG0QJ3bjfqk

Thanks for you time and advice
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Korg KRONOS 73, Korg 01Wfd, Korg 01R/W, Korg Trinity V3, Roland D-50, Yamaha Motif XF6, Yamaha Motif ES8 (VL, DX, AN), Novation IMPULSE 49, Korg microkey, Korg Nanopad2

[GregC]

[miljantoto]

[Davd C. Polich]

I've listened to the sound cloud demos "showing" this supposed problem.

There is NO distortion problem. That is the way these pianos sound when
you hit them hard. Period. I repeat, there is NO distortion or clipping.

The Rhodes simply "squawks" and distorts at highest velocities. I have one in my room right now. That's what it does.

Perhaps you just never paid enough attention before, and "suddenly" noticed what really happens when you hit that hard, and now you're focused on that. But trust me, that is what happens normally.

There is no fix for it, because there is nothing to fix. Get used to it. If you don't like it, don't hit the keys that hard.

[Dniss]

[xtatty]

[voip]

The Kronos' output is specified at +4dBu (professional level) so is quite "hot". If any equipment taking line outs from the Kronos is set to -10dBu input (consumer level audio), or has been set for extra gain, then that signal path may easily be overloaded, so worth checking. The 12 o'clock position seems rather loud through ear buds. Not sure if it's ears distorting or the Kronos. I suspect it's either the old shell-likes or the ear buds, since downstream audio equipment set to +4dBu doesn't display the distortion.

Individual outputs 1-4 are at max level and not affected by the volume control.

From the user manual: "The MR8 is designed to operate with a +4dBu signal when the INPUT LEVEL control is in the MAX position." i.e. if the input level control is not in the max position, there's a good chance the MR8 signal path will be distorted by signals hitting +4dBu levels.

Another thought, how much headroom has been set in the Kronos Global settings?

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[xtatty]

[GregC]

[voip]

The Kronos' output level is nominally +4dBu but can go up to +16dBu before the Kronos outputs clip, i.e. 12dB more. The MR8 gives its rated output with a 300Hz signal at an input level of +4dBu, with the MR8 input level control set to Max, so an extra 12dB from the Kronos will easily overload the speaker amp if conditions are right e.g. big chords hit hard, or with certain effects.

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[tekszet]