Non io, ma su un forum americano ho trovato le prime impressioni di uno che li ha provato. Promette bene
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"Ok I am back from the demo with the CP1 (and the CP5, CP50) and although i only had about 10 mins with each board and couldn't record any samples I can offer a opinion of sorts.
1) Keyboard ... its very good in fact close your eyes and you simply wouldn't be able to tell. I strongly suspect its the same or a very similar keyboard that's used in the Aavant Grand series and along the same lines as the V-Piano keyboard. Both the CP1 and CP5 have this same keyboard and its good. The CP50 has a different keyboard same as the S90XS I think and its very good but not quite like the others that really do feel authentic.
2) AP sounds ...the CP1 has 2 each of the SCM patches from the S6 and CFIII grands the CP5 has one of each. In AP (S6b -1) the sound was excellent noticeably better then my S90Xs which has the same S6 patch (a normal sample not the SCM) The Yamaha tech informed me that SCM is not sampling or modeling but rather a combination taking the best of each. The S6B SCM (1) on the CP1 was noticeably brighter then the CP5 in the mid-range but the 2nd S6 sample was a softer more traditional Yamaha sound. In the short time I had to play the boards I did not notice any obvious stretching or looping even when I tried however to my ear there are still some artifacts in the decay but its doubtful you would describe them as looping its a more acoustic artifact you sometimes hear on older pianos and I cannot even be sure I didn't imagine it. It is not unpleasant or noticeable. The CP1 sounded better and more rounded in both CFIII patches then the CP5 did in its one CFIII patch but both were more then acceptable (to my ear) and sounded better then the Advent Grand we played as well. Both piano's I felt were a improvement on the already excellent S90XS S6 based AP as was the CP50 which while offering the same keyboard as the S90XS was a nicer AP sound.
3)The pick of the bunch for me was the CP5 which has really nice strings and Clav's as well as some of the better EP's from the CP1 plus normal Yamaha range ( a lot of my S90XS's sounds were there). The CP1 has amazing EP's ...great Rhodes (5 of them !) Controls look good for stage use and the CP1 offers almost infinite adjustment similar to the V-Piano. The CP5 appears to offer similar but less intricate adjustment. I didn't get into the tech stuff much more then that. I can't help feel I personally would be happy with either but I'm not as picky as some ;-)
All three of these cases are well built and would take punishment on the road but the CP1 and to only a slightly lesser extent the CP5 are simply beautiful too ...very retro...very slick looking boards. I'm not sold on the displays but they are easy to read however to my eye while looking retro also look slightly "cheap" and don't really fit with the nice polished buttons.
In conclusion ... It sounds promising but I'm not singing its praises to the really picky bunch in here just yet. I'd like to spend a few hours alone with each of them before I'd do that. But from what I heard today I'm encouraged.
continua.....