The pianos of the same P series (there are three types of P-45, P-115, and P-255 in active service), but the price difference is twice (more than 20,000 Taiwan dollars, more than 40,000 Taiwan dollars), in fact, it should not be used for direct comparison, but P- The 115 already sounds great, do you need to spend twice as much on the P-255?
SIZE
First of all, they are all 88 keys of a standard piano, but the P-255 is 5cm wider, deeper, and 5kg heavier (11.8 vs 17.3kg). The original wooden tripods are optional, but not universal. P stands for Portable, so you can move it to every corner of the house, and the size is convenient for you to put away, or move it to the car.
SPEAKER
This is a big difference, the P-115 is 7W, but the P255's 15W obviously makes the sound fuller & richer.
keyboard
The P-115 uses Yamaha's standard GHS, but it has more layers of coating on the black keys than its Yamaha counterparts, which is called [黒KEY マットシ上げ] in Japanese. The P-255 uses GH ivory composite keys. It's closer to a real piano and a little heavier. In addition, if you turn off the volume and play the keyboard empty, the P115 has a louder mechanical sound, while the P255 is indeed very quiet, with less mechanical joint sound, and it is more smooth to play. There is a big difference here.
Simultaneous sounds
The P-105 has 128, the P-115 is upgraded to 192, and the P-255 is 256. There is an oscillator behind each vocal number, but the cost is listed. If you are going to use multi-voice overlap, multi-track recording, the number of simultaneous voices is important to you.
timbre
The P-115 has 14 timbres, the P-255 has 24. Of course, this is not comparable to the hundreds or thousands of timbres of electronic synthesizers, but the purpose of the P series is to be a portalbe version of a real piano, when The purpose is to use it as a piano. 24 timbres can provide more choices of piano timbres, and the string also increases the slow string to choose from.
Sustain pedal
The P-115 comes with a simplified version of the FC5 sustain pedal. Most people will consider buying another sound and pedal, unlike the P-255, which is an upgraded FC4 pedal.
EQ
The innovative function of the P-115 is to provide the function of sound boost, which actually increases the EQ of the middle part of the piano, and the sound of the piano will light up. It is very suitable for piano solo use in the orchestra. The P-255 directly has a small mixer, you can directly adjust the low, middle and high parts. For example, if you want to play bass, you can increase the low part.
iPAD
The P-115 was launched in June this year, and the P-255 was launched in October 2014. YAMAHA has an APP that allows you to control the panel on the P-115, such as tone, drum rhythm, etc. The P-255 does not.
in conclusion
The P-115 is very suitable for beginners, and at a price of less than $20,000 on the market, it is very functional. Of course if you're progressing to a musicalian level, you'll need the P-255 to give you feedback on your keyboard and tone. The question is how fast you're progressing. If you're learning fast and making considerable progress in less than two years, then buying the P-255 outright seems like a good deal. If this is your amateur playmate, then it won't make much difference to buy one, you won't really feel the difference, it's simply a matter of budget.