***Correction*** The KDP110 uses the RHCII, which is an updated version of the RHC with a triple sensor. In regards to my use of the term "semi-weighted": I used this term to describe that the RHC action feels lighter than that of the RHIII. I now understand that the term "semi-weighted" has a different denotation than I Initially realized. Thanks for all of your comments and feedback!

Thank you! It is very interesting to see how these actions work internally.

Excellent explanation!... I was about to try to fix an electronic piano but had no idea about the differences between the different types of hammer actions... thank you very much for this valuable information!

This is EXTREMELY helpful. Amazing visuals and clear “instructions” if you will. I’ve been trying to develop my own 3D model of piano keys, but I’ve been stuck on how to get an action going on. This video really helped me visualize how these things work. Thanks so much

Very interesting comparison of the actions!

Very impressed with your videos ! Calm demeanor, precisely spoken information!

Great explanation and demonstration, thank you very much!

VERY VERY PROFESIONAL & DETAILED EXPLANATION....THANK YOU !!!!

Thanks for sharing it. Really well-detailed and informative video.

Thank you for the excellent explanation!

Excellent detailed video thank you so much.

You deserve more subs. If i see how much efoort you have puy in this video. Very nice and ibteresting 💯👌🏾

Very informative. Great keyfeel topic.🎹👍

Excellent presentation. Thank you!

Big thanks for this video!!!!!🥰

Well explained, thanks

very informative. thanks for this!

Thanks for uploading

Amazing video. Thank a lot.

Nice video. I could listen to you talk all day. What a beautiful tone of voice you have, and I love the blue hair. :)

Fantastic video. Thank you.,

Interesting to see these models and learn about the differences. I will be saving for C79 or C99 then.

Wow 🤩 What an interesting video! I have a Yamaha piano but this is so cool! 😁

Thanks for this excellent very detailed video. Frequently I've been asked to compare the actions of Kawai instruments after having bought a VPC1 last year and I've been unable to provide detailed answers, so I hope you don't mind if I reference this video next time I'm asked?

Great comparison. I would point out though that the GrandFeel Compact key length is the exact same as the RHIII if we measure it from the pivot point. Many prefer that RHIII action compared to the GFC.

Superb content

Interesting video!

Thank you!

I ordered a kawai ca79 4 months ago and it’s still back ordered. A big reason why I ordered it is because of the action, so I’m just here watching videos on the action to feed my sadness and impatience haha

This is awesome. Do you have similar videos for other piano bed actions (Fatar, Yamaha etc)? Just off to check your channel videos. This should be standard content for these manufacturers. Once you are getting up to the price point that these boards go for I would expect most people would want to know all the details about how their prospective board works. Thank you for this content. Very clearly explained and very much appreciated.

very good, very clear explanation, thanks so much, do you have Yamaha's Graded Hammer demo?

I hope the difference between the action of the MP11SE and the newer actions isn't that big, cause i want to buy the mp11se -and not wait for a follow-up model in the future :D

Iam going to get CA17 with RM3 Grand II, what actually will this key action perform compare to those in the videos? Thank you

Thanks for a very informative video. Just an FYI: in the synth/MIDI controller world the word semi-weighted implies that springs are used and there is no hammer action at all. I would suggest finding a different word to describe the RHC action in the future.

Thank you so much for this excellent video! What about the Kawai VPC1? Where does that action fall in this lineup? Thank you so much. - Andrew Colyer, New York

It's been 2 months when I commented on your video for suggestion. I would like to thank you for giving me an idea of the Kawai digital piano actions. I purchased Kawai ES110 last week and I was really happy about it and with no regrets. Although I wish Kawai ES920 or ES520 was available on our region but ES110 is still an excellent choice for me. Before buying ES110 I did a lot of research and comparison. Side by side playing of the instrument and these were my observation. The ES110's key action is fully-weighted but slightly lighter than Yamaha's GHS action and Roland's PH4 action. But does not mean Kawai is behind the competition. If I rate the weight of these pianoes from 1-10 (10 the heaviest) 10. Roland FP-30 (PH4) 9. Yamaha P125 (GHS) 8.5 Kawai ES110 (RHC) 5. Yamaha DGX-230 (Semi-Weighted Graded Keys) I also included a Yamaha DGX keyboard to compare the weight as well from a fully weight digital piano and semi-weighted keyboard. RHC action feels like an upright acoustic piano but a little bouncy and short keybed. GHS feels like artificial and springy but it is somewhere in the middle of a grand and upright mechanism. PH4 with escapement feels like a grand piano but too heavy and can be too tiresome for hours but the ivory and ebony touches are its forte. But these actions that I mentioned are still acceptable and nice. The reason I purchased Kawai ES110 is the sound quality and sound sample plus the dynamic range. The RHC could be bouncy but still tolerable and forgiving and I also learned and practiced before piano on an old Kawai upright maybe that's why preferred Kawai. It could still be a personal preference since my teacher have Yamaha upright piano and also preferred a GHS action than RHC or PH4.

Good job Louise! Clear and informative explanation. Hopefully Kawai America can send you a GFIII action sample soon!

Very informative Video. So thanks for this. Where do you rate the action of the VPC-1 (RM3 Grand II) ✌🏼

Hi. I like your videos. Very informative! Would you mind making a similar video for the Yamaha digital piano actions?

Grazie!

which action system on the market now has the most true-to-life (i.e. real grand) action?

Thank you so much for this video, which action would closely resemble an upright piano? Currently have a yamaha P125 but notice a big difference when I jump onto a real piano hence looking for recommendations.

What action does the Kawai Pw 300 have??

Thank you :)

What about the Kawai RM3ii system action please!!!???

Wonder if anybody know differences between kawaii RHC and the Korg RH3 action. I am between Korg lp380 and kawaii kdp75

i wish yamaha made a video like this i have a ypd 144 anyone know which action from kawai may be similar to the one used in my piano?

Does anyone know of the RHC action for the es110 uses Lead or steel as a weight? Tried to find info online but couldnt find any info about the material used in the action. Thus was a wery infornative video by the way. Thx. :)

After watching this video, i decided to buy steinway model D grand piano..thank you

👍thanks

Is the casio px 160 RHC hammer action

Hi, can you tell me pls. how many grams weight have Kawai MP-11 keys downwards, and what is the max. repetition frequency in Hertz for this action (Kawai's Grand Feel compact action) (should be minimum 15 Hz)? Szabi from Transylvania

So the CA77 and CA79 uses te grand feel action 3? CA78 and 98 uses grand feel 2?

which system is better?

I play with KORG ex88 but I look for a new one with touch similar my ex upright piano. Vpc1 , or keyboard with PHA50 as Roland FP90X or NWX system? Could vpc1 be a good election ? I need only the keyboard without furniture and use Pianotec8. Thanks

I read that the MP12 will have GF 3 action when it comes out next year. Rumor or possibly true?

Is it ES120 and KDP75, KDP120 almost the same piano feeling and sound when play ?

Hi, is there any place that i can buy those physical action models?

I'd really like to see Kawai produce a version of the vpc-1 with a real grand action like their novus hybrids.

Very nice, As an Acoustic Piano Tech I'm having a hard time finding anything on the older Kawai CP series actions with some of the first wooden keys. I need to find the plastic parts that the counter weights pivot in For a CP-150 . As well as the pads if still available. Besides the broken part some of the notes sound louder then others, I think that is the pads or just dirty. Any help pointing me in the right direction would be appreciated.

Hi, can you do Yamaha Action comparison?

Very interesting. Thank you. It would also be useful to make a comparison of yamaha action.

What about durability? Which kawai key action system will last the longest before one or more parts breaks or wears out? I have seen cases on other brands where one of the plastic components breaks (presumably from frequent use) resulting in the need for a replacement. And while I am on this subject, how easy is it to obtain spare parts in order to make repairs? I ask because I am thinking of purchasing the CA79 and would like to believe that the keys would last at least 10-15 years of regular use before they are damaged in this way. Currently, I own a Roland KR-570 purchased 20 years ago and only now are the plastic mechanisms beginning to fail.

Which other brands, not Kawaii, features that nice "grand feel action" keybed? The ones with long keys.

anyone knows how the rhc2 compares to the rhc3

At 42 seconds, the hammer is bouncing after it has struck, The action needs regulating. The set off is happening too late.

Hi, i am upgrading my keyboard to piano actions however i am lack of budget to buy an acoustic piano as advised by my piano teacher. May i know if ES110 type of action is sufficient for my finger touch and pressure training (as if i am playing an acoustic piano)?

Witch keys does VPC 1 uses? It's better than the CA59?

Is Kawai ES110 keys action are semi-weighted like the Yamaha DGX-530 keys? I owned a Yamaha DGX-220 with semi-weighted keys andI'm planning to buy a digital piano with weighted keys. One of my option is Kawai ES110.

Nice video. How about kpd 120? Thank you

The Korg action is partially a spring loaded action. This is a very old design. The Kawai’s RHIII works purely on gravity as it is shown in this video.

Do these types of KAWAI mechanism have LEAD parts or as counterweights? I hope the Lead has been eliminated because it is toxic. In real wooden pianos (it seems to me more in the grand ones and less in the vertical ones, where perhaps they are not on the sides but more in depth) I have seen that on the sides the keys are full of these Lead button disc counterweights. What can You tell me? And which brands have banned it? Thank You.

We own a Kawaii manufactured piano that has a Renner piano action. Are these still used in currently manufactured pianos?

Do you have this for Korg, Roland, and Yamaha?

Hey, just wanna ask where and how can you buy those keys? Please reply, I want to get one. Thanks

The bounce of the hammer returning to rest kind of inhibits your ability to imagine how the key press might feel. At least for me. 3:05 looks cool though

Not one maker of actions quotes the note repetition rate of a single note, which as a pianist, I find terribly frustrating. Surely it should be a metric which accompanies any action sold? I have a bunch of Fatar TP/x 88noters here in Kurzweils, and they are all 2 switch, and (sorry Fatar), but for me they are too slow where note repetition is concerned (more like an upright cf. a grand), forcing ornaments instead. Is there a drop in upgrade for the action? Perhaps a nice Fatar triple switch GH action with >12notes/second repettition? Roll on the day when upgrading an action is a DIY exercise. It would be about time. Didn't do the PC market any harm to sell users the components to build their own.

Hi, i bought a se 920 and for me its action is not heavy enough. I Wonder if its possible to somehow make the keys heavier? Hope anyone can help…

0:08 where can i buy these salesman kawaii key samples ?

You see that the key is "trembling" when she touches ( 03:06 ). That doesn´t happen on a real acoustic piano. I´m searching for an excellent piano action. It should have the acoustic touch, but I´ve played some Steinway pianos and the touch is excellent, very light, the fingers "fly" in speed, not as some acoustic pianos which are too hard and hurt my pulses and turns me lazy to play fast passages on classical music.

Please update

Is the Grand Feel III suitable for practicing advanced level of classical music in order to study for diploma level??

Are you aware of any high quality keyboards or digital pianos that will show you the chord that you are playing on the LCD screen?

I read that the hammer action of the keys of KAWAI KDP 120 is just basic. So not the best for advanced pianists. Is that true? Are the key too softly weighted for advanced classical music piano practice??

RHC is not Semi-weighted, it is graded hammer weighted

menarik banget

The RHC is nicely weighted. It is misleading to claim that it is almost unweighted.

How long are the keys on the GF2

3:59

2:36

Is "ivory touch" made of actual ivory? (Vegan so negative for me.)

no table resume, its a shame

I'm not sure Kaiwai would appreciate you calling the RHC Semi-Weighted. That is certainly not what they advertise.

ES120?

Resp

I prefer resp

there is something in your nose and your hair has a alien color.

The difference between a longer key and shorter is so minimal it’s not worth to pay $3000 extra so i😊

whats absolutely hilarious about this is how no one can replicate old technology using new technology. Yes, things are always improving

I can now understand why digital pianos can get pricey