Author Topic: Rhodes upper octave "scream"  (Read 165 times)

Offline thetrufflehog

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Rhodes upper octave "scream"
« on: March 19, 2019, 11:54:05 AM »
I've looked around for a while and cannot find anything on this issue I'm having with a few notes in the upper octave of my Rhodes!
 
Pehaps I am not naming the issue right, but the best way I can describe it is that I have a few notes in the top octave that have a sort of "scream" or "gargle" - basically it's a really fast beating. The sound is vastly more prominent when a note is struck acoustically without the piano plugged into an amplifier, but it does still create some unpleasant overtones when amplified, and it makes tuning these few notes much harder.

My tech said some tonebar clips might help tame the "scream", but it did not. I've tuned to ET as well as a percision strobe tune Rhodes stretch map, which also had no effect.

Any help or advice would be greatly appreciated!
1974 Stage 73
Korg Arp Odyssey
Nord Electro 3
Mason and Hamlin Model 50 Upright
Motion Sound KP200S
Kustom Coupe 36
(Rhodes) MXR Univibe > EHX Soul Food > Kokko Space Reverb > Speakeasy Vintage Stereo Vibrato Preamp
(ARP) Donner Yellow Fall Delay

Offline pnoboy

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Re: Rhodes upper octave "scream"
« Reply #1 on: March 23, 2019, 03:58:59 PM »
Hmmm, this is an odd one.  Have you tried adjusting the voicing screw?  Do the tone-bar assemblies feel loose, which could possibly be caused by old grommets?  For example, if you move the end of a tone bar right and left and then let it go, does it return to the center position, or is it loose enough to stay where you left it?  Are the tines screwed tightly into the tone bars?

Offline thetrufflehog

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Re: Rhodes upper octave "scream"
« Reply #2 on: March 24, 2019, 01:02:51 AM »
I have adjusted the voicing screws a lot on this piano over the course of my ownership, including recently, with no changes to this issue. I replaced the grommets on most of the piano, but I will double check because some seemed ok and I didnt switch them out. I'm not totally happy with the grommets I chose, and that could certainly be a factor for this issue. I will check to see the tines are screwed tightly to the tone bar, though as far as I know none of the tines have been ever been removed, replaced, or adjusted.
Thanks for the advice!
1974 Stage 73
Korg Arp Odyssey
Nord Electro 3
Mason and Hamlin Model 50 Upright
Motion Sound KP200S
Kustom Coupe 36
(Rhodes) MXR Univibe > EHX Soul Food > Kokko Space Reverb > Speakeasy Vintage Stereo Vibrato Preamp
(ARP) Donner Yellow Fall Delay