The same P series of pianos (active a total of three P-45, P-115, P-255), but the price difference is double (T$20,000, more than 40,000), should not be directly compared, but P-115 already sounds great, still need to spend twice as much to buy P-255?
First of all, they are standard piano 88 keys, but the P-255 side is more than 5cm wide, a little deeper, also weighed 5kg (11.8 vs 17.3kg). Wood original scaffolding is optional, but not universal. P stands for Portable, allowing you to move to every corner of your home, and the volume makes it easy for you to put it away, or move to a car.
This is very different, the P-115 is 7W, but the P255's 15W obviously has to make the sound more full and rich.
The P-115 uses YAMAHA standard GHS, but more layers of coating than its YAMAHA peers, the black keys, and the Japanese language is called the "Keysマッ code." The P-255 uses the GH ivory synthesis key. Play closer to the real piano, a little heavier. In addition, if you turn off the volume, empty keyboard, P115 has a large mechanical sound, P255 is really quiet, not too mechanical joint sound, play more smooth. There's a big difference here.
The number of simultaneous sounds
The P-105 has 128, the P-115 is upgraded to 192, and the P-255 is 256. Each vocal number has an oscillator behind it, but the table costs. If you're going to use multi-sound overlap, multitrack recording, and the number of simultaneous sounds, is important to you.
The P-115 has 14 tones and the P-255 has 24. Of course, this can't be compared with the electronic synthesizer movement of hundreds of thousands of tones, but the purpose of the P-Series is to be a real piano portalbe version, as piano use is the purpose. Twenty-four tones offer more piano tone options, and string adds a selection of slow strings.
The delay pedal
The P-115 comes with a simple version of the FC5 delay pedal, and most people would consider buying another sound and pedal, unlike the P-255, which is an upgraded FC4 pedal.
P-115's innovative function is to provide the function of sound boost, in fact, the piano's mid-tone EQ promotion, piano sound will light up, very suitable for the orchestra to do piano solo to use, P-255 directly has a small mixer, can directly adjust the low middle and high-pitched parts, such as you want to play bass, can be raised in the low-pitched part.
The P-115 was launched in June this year, the P-255 was launched in October 2014, and YAMAHA has an APP that lets you control panels on the P-115, such as tone, drum rhythm, etc. P-255 does not.
The P-115 is ideal for beginners and is functionally great for prices below $20,000 available on the market. Of course, if you're improving to the point where you need P-255 feedback on your keyboard and tone, the question is how fast you're improving. If you're learning fast and have made considerable progress in less than two years, it seems cost-effective to buy the P-255 directly. If this is your amateur playmate, then buy which one will not be too bad, you will not really feel too different, very simple is the budget problem.