Well, maybe I was a bit harsh, but I reacted to the last sentence here. The poster says that the Korg is much mor practical, and that he considers selling the Genos. This is a Yamaha forum. I am a bit tired of Genos bashers! No keyboard ever has got so much bashing. Here I go again...
Hi Toril, FWIW, not bashing either, they both have good things (The Korg has the nicest feeling keys, and the all metal construction is nicer, and I like that the multipads show you on screen which ones are currently active, and all the styles sound good out of the box because of really good drum samples... even better than T5, but not Genos). Korg also had touchscreens first, and the current PA1000's have HDMI output for video. No converter needed.
FWIW though, comparing the sounds: Both have great drum sounds, but the older Yamaha samples from when they switched over the PSR3000 were a bit flat, *all* of the Korg drums sound good, Strings: synth strings Korg has a slight edge, but Yamaha acoustic strings sound *much* more realistic. Guitars: Korg finally copied the Super Articulated guitars with their fret noises and body taps (Yamaha has had that since Tyros 2 in 2006, Korg didn't implement until 2015 with PA4x), and their nylon guitars do sound a bit more natural now. But Yamaha's steel guitars have the edge. Distortion guitars, both are good (Yamahas sound more real due to being sample based, but Korg's have the ability to do pinched harmonic squeals, something I've been wanting on a Yamaha since they introduced Super Articulation). Korg also copied the S.Art 2 phrasing of saxophones (which Yamaha has had since 2008, tyros 3, Jazz sax, etc) but it doesn't behave as intuitively; when I hit the phrase button on the Korg PA, it doesn't automatically switch to monophonic phrasing... I'll actually get the gliss as well as the note I'm playing *at the same time*. Yamaha's is definitely better. Yamaha's acoustic bass sounds are the best, but the 'punch' electric basses are better on Korg (you can *feel* the thump in your chest). Korg also has the edge on synths and Hammonds, especially pad synths. Both pianos are good. For horns, Yamaha has the edge.
However, saying "Much more functional" is questionable. A few of the reasons for Yamaha's popularity:
1) Ease of use (you can simply look up new styles on a USB stick on a Yamaha... on the Korg? You have to individually copy and paste each style from your usb to install it, can't access externally from the USB stick.) And yes, there is a mass copy function, but it doesn't fill out all the memory slots (the Korg uses a fixed array with User 1, 2, 3, then Favourites 1-12? I think, as individual folders). If you use a mass copy, it only fills out as many as the source directory (so if the source only had 5 styles, it'll only copy those 5 styles into the Korg user folder then erase the rest, wherin you have to individually install each style individually).
Yes you have to *install* styles!
2) Sample library: Yamaha's format was easy enough that anyone can make samples using wav files, and so there are many, many sources, as well as Yamaha themselves have many, many packs. Korg's sample packs are limited in scope (Indian, Oriental, that's about it, and they're really pricey. $250-$400 USD depending on your model), and it's difficult to program for so there are many sample producers out there, and the 3rd party ones available are pricey (and almost all exclusively dedicated to Persian/Oriental sample packs) as well. Additionally, when you install samples to the instrument, there is a fixed number of sample slots... so it almost doesn't matter how much sample ram space the Korg instrument has, the number of samples limits the number of importable sounds. You can put *bigger* samples in, but not more. Yamahas allow for many, many smaller samples or fewer larger samples, depending on what you want. But no Chinese, no Indonesian, no Italian, Celtic, Country music, etc, sample packs.
3) No registrations on Korg. So my demos with switching arrangements on the fly simply aren't possible there.
Mark