Hi guys, I'm having a problem I hope someone can solve. I have owned a CLP-545 for quite some time, I've been interested in the Yamaha CLP-785 for 2 years now, and I was finally able to try it at a local dealer in my hometown. The keyboard was as good as I expected, and the sound with headphones was awesome, but in my opinion the sound with speakers was... how can I say it softly... horrible ಠ_ಠ.
Do you know that horribe vibration when there's something on or near the piano (a glass, silverware, a shelf with a glass door...), you hit the right frequency at which that object vibrates and it destroys the sound? One of those things that once heard, it can not be unheard and will destroy your brain and ears every single time you press that key you and I know. It was the exact same effect with every single key in the 3 central octaves more or less, starting with the sound, lasting for a couple seconds and then disappearing before the sound faded away (it wouldn't happen when pressing the keys veeeeeeeery softly). I tried it for a while, and the distortion persisted. Checked around the piano, no objects at all. Kept paying attention to it and finally got to the conclussion that the vibration came from a speaker or a piece at the top-right quarter of the piano. I asked someone from the staff to check if it could be a faulty unit, but unfortunately he said he couldn't hear that distortion. I was lucky enough to go with a friend of mine who is also a pianist and she realised about the noise before I said anything, so I know she wasn't biased and I wasn't hearing ghosts.
This problem haunted me for several weeks (as I said, I had been waiting for this piano for 2 years), and I finally had the opportunity to try the same model in a different shop. Unfortunately, the exact same problem. This time the seller was also a tuner. As soon as I commented about that odd vibration/distortion, he said "Oh, yes, you're totally right, it sounds like an object vibrating inside the piano, I should call the yamaha customer service to come and check it".
It seems very odd to me that Yamaha builds such an expensive instrument with such an obvious problem, so I refuse to believe that it's a general fault in the model. Do you guys know about any default configuration that could be the reason why the sound has this problem? Some kind of resonance option or something like that? 785 owners, anything to say about this? I'm really interested in that keyboard, but if it doesn't come with the right sound, I'm afraid I'll have to let it go as if it was a toxic ex-girlfriend after a traumatic break up.