PS20的优势尤其体现在它的键盘手感和复音数上,下面是一篇关于PS-20的国外测评:
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Full Review:
After shopping around extensively, I concluded that this is probably the best quality keyboard you will get for the price. The closest in quality for the price range is the Yamaha P60, which is $50 more, doesn't look as nice, and doesn't have as nice of a weighted hammer action (in my opinion). I paid $700 for this, and it has everything I wanted in a keyboard. It has a very real piano feel to it, along with good sound quality.
There aren't many effects or options, mainly because this is a "digital piano" - not a keyboard. However, it does have MIDI capabilities, which is a big plus for anyone into transposing, or recording themselves and saving to the computer. You can record up to 2500 notes (one song) at a time, which is quite a handy feature to have. The P20 has 8 different voices, four of which are piano, and the other four of which are electrical sounding. It has a built-in metronome, transposing function, reverb, chorus, and customizable tuning.
When it comes to the way this piano sounds, I'd give it an 9 out of ten, because it is impeccable, save for one octave, that sounds slightly "electronic." However, the difference in that octave is very subtle, and I bet very few people would actually notice it. Without me telling you which octave it is, you'd probably have trouble actually finding it yourself.
The piano has 64-note polyphony, which is very respectable, considering the price. Every other keyboard I have seen in this price range (about $500-900) only has 32-note polyphony. 64 should be sufficient for most pianists, with the exception of those extreme virtuosos, who hold the pedal down for extended periods, playing huge glissandos, chords, scales, etc. For me, someone who has played piano for about 8 hours, 64 note-polyphony works out just fine.
The hammer-weighted action on this digital piano is very good quality. Admittedly, the keys do make a slight "clicking" sound when played aggressively, but this is totally unnoticeable with headphones. I've tried many digital pianos, and I'd say that this is one of the closest to a grand piano that I have seen. Whether this is a good thing or not depends on personal preference, because some find grand pianos to be too stiff, and difficult to play on. This keyboard is quite stiff, and even stiffer than some grand pianos. However, this makes it feel much more realistic, and if you aren't already used to the feel of a grand piano, this will accustom you.
It comes with a damper pedal, which is quite a bit nicer than lots of the others I have seen. It is actually metal, and feels quite a bit like the real thing. I admit, the on-board speakers aren't the greatest, but they get the job done. I always just use headphones anyway, and there are two jacks, just in case you want someone listening along with you. It should also be noted that the keyboard comes with a music stand, which has a metal frame that sticks into the back of the keyboard. It's quite durable and very effective--much better than some of the cheap plastic ones you find with other keyboards.
On top of all this, the piano also looks great, with a brushed chrome metal face, and (fake) wood edging. It definitely looks more eye-pleasing than your average black, plastic "keyboard." This fits in very nicely with my room, and the white stand that I made for it. Though you can purchase the special Casio stand for $100 , you're better off just buying some materials for around $40, and building your own. That way, you can customize it to fit your room, and do things to your liking.