Thorsten, thanks for asking
Yes, I've been there on Tuesday afternoon and came home with couple of questions which I'd like to raise to you as a CA71 user. Therefore I was going to write about the testing here. I tested CA 51, 71 and YAMAHA CLP 370. CA 91, 111 were not there, CA 18, either. They had many YAMAHA digitals, but only the CLP370 came into question, because it was the single model among them which costs around 2000 Euro and has wooden keys. The YAMAHA was, however, quickly disqualified because of its weak key-mechanics. The design and the color of its casing is much better than those of KAWAI, but the keys were felt really "digitally". The authentic key feeling on KAWAI instruments was not there. You're right, Thorsten, the keyboard of CA series is quite satisfying. The weight of keys was a bit light for me, but I think through the "Virtual Technician" one could adjust that, right?
I did the polyphony experiment according your advice and could find the difference between CA51 and 71. On the former the sound went off quickly. The YAMAHA model has 126 polyphony, but the difference to CA71 was not so much as expected.
The two more speakers and one more piano sound (Concert Grand 2) were with the polyphony ertainly the points that make me prefer CA71 to 51. Actually I almost decided for CA 71 (in spite of the 400 Euro price difference - I asked the handler about payment in instalments
), but I found something on the by me tested CA 71 which is to me really unacceptable. That was nearly dissonance-like exaggerated side tones, which is heard from pressing a single tone in the treble. That was not that string resonance which occurs in a certain relationship between different tones (That was noticed by me the first time as I played on it the last upper note on bar 28 from Scriabin's second sonata Andante and was confirmed as I played the first note on bar 309 from Chopin's second Scherzo.)
At first I nearly thought this instrument needs tuning! I told the piano technician in the store about that, he said the sampling comes from a large grand, so that is natural. But I cannot agree because the real grands in that store and the grands which I experienced so far don't give such unnatural and exccesive effect in the treble and because on the CA 51 I cannot find such thing (this is the case not only with a headphone but also without). I think the technician is not at home in digital pianos
Thorsten, this is my question: Have you ever been noticed such a problem? I attached the scores of those pieces of Scriabin. Wanna to attach also the Chopin, but my PDF score has no bar numbers. Could you give a look into that, try on your piano and tell me whether you hear the problem, too? I wrote on another thread on AR to Alf who has KAWAI MP8 about that problem, and he replied that he thinks the thing could be modified by user on CA71. Do you think so, too? I look the manual briefly, but couldn't find such thing there (maybe because I don't know the thechnical vocabulary there
BTW which color does your CA71 have? They had only rosewood, but I'm also interested in mahoghany.