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#2897223 10/05/19 09:21 AM
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New budget stage piano from Kurzweil:
http://kurzweil.com/product/mps110_120/overview/
Built in speakers, 3 sensors in the keyboard, wooden keyboard as a second option.


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Nice clean look. Wooden key action under 40 lbs.

Will be interested to see the price.


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Surprisingly(?) it's not a Fatar action but some mysterious "LK action".

As a curiosity there's a Kurzweil video where they say that a specific Fatar action that is/was optional in one of their models is better than their own LK action. (Or whoever makes it.) But that was a different LK anyway.

Edit: Action photo found here: http://www.good-music.co.kr/shop/goods/goods_view.php?goodsno=3160&category=001004

Last edited by clothearednincompo; 10/06/19 02:52 PM.
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Originally Posted by clothearednincompo
Surprisingly(?) it's not a Fatar action.

It's "Medeli" I think.


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Actually the action (if that's the one at good-music.co.kr) looks more like some other Korean actions with wooden white keys i.e. the "RAHA-4W" fron Crawzer and the "RHA-3W" from Dynatone.

Then again, it's not really an important detail, I guess, as long as it plays well. But it's okay to be curious. smile

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This is great news! I am happy with my MPS-20 because it is a fairly portable instrument that combines a good piano sound with sufficient connection options and built-in speakers that can also stay on when plugged through external amp /PA.

The big downside is the Medeli LK40 GH + keyboard. I hope Kurzweil has succeeded in building in a good piano- keyboard that plays well and doesn't make too much noise.


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Originally Posted by klzooi
I hope Kurzweil has succeeded in building in a good piano- keyboard that plays well and doesn't make too much noise.

I don't think that these keyboard are made by Kurzweil. For sure they are made by independent chinesse factory.


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These hammer actions do not impress me. They seem to be more hype than anything. Readers will be mislead by the "Wooden" aspect, and, the weight on the end of the hammer will stress, and eventually break, the hammer each time each time the hammer slams against the bumper at the end of the keystroke.

Many readers of digital piano information will associate the term "wooden keys" with the products of Kawai and Yamaha, and, may incorrectly assume that the Kurzweil wooden keys are long, going past the balance pivot just like the Kawai and Yamaha products. But, the photos above clearly show that the keys do not extend past the pivot point, and, that the pivot point is immediately behind the fallboard just like in most entry level digital pianos. The presence of wood inside the truncated key seems to be of no consequence, other than for marketing.

The hammer mechanism reminds me too much of a failed Roland design which resulted in broken hammers and eventually, to a shortage of replacement parts. In the last diagram in clothearednincompo's post above, the two extreme positions of the hammer are shown. At rest, the hammer sits atop a bumper/cushion represented by the little crosshatched rectangle just below the traveling end of the hammer. This part is not so problematic.

But, with key fully depressed, the hammer comes to a sudden stop when it strikes the similar bumper/cushion at the top of the key's travel. In the diagram, this upper bumper/cushion is also represented by a crosshatched small rectangle, located just above the hammer. While hammers hitting bumpers is nothing new, the problem here is that the larger, unfilled rectangle at the very far end of the hammer appears to be the weight that gives the action its weighted feel. This weight is not supported by anything other than that small neck of material, presumably plastic or nylon, afixing the weight to the far end of the hammer.

In the Roland keybed I became familiar with, this was a fatal weakness. Every keystroke sent the hammer flying upwards where the bumper/cushion would abruptly bring the hammer to a halt. However, with the weight being out beyond the bumper/cushion, the only thing to stop the weight from continuing upward was that small neck of material, whether plastic or nylon,, which connected the weight to the hammer. That weight was in the same position as a seat belted automobile driver without airbags. In a frontal collision, the driver's torso (the hammer) was stopped by the seat belts (the bumper) while the head (the hammer weight) flew forward until the ligaments and tendons in the neck could stop the head. In the Roland model that I bought for my daughter, those weights continually stressed the neck of the hammer until they eventually broke.

From the diagrams above, I see no reason to believe that this key action would fare better.


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Finally some decent videos:





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