I have modified my piano patches. And my kross sounds better than my friends Kronos. He ask me to modify his German Grand. To sound less clunky. So I did. Play your kross thru a mixer. Into Your amp or what every your using. Make sure you set it up stereo. And have at least a the band eq. Try turning your mids all the way left. And tell me what you think. You can adjust slightly from there if you like a brighter more light piano. Try your treble and bass just slightly to the right of 12 o clock.And adjust from there if nessecary. Make sure your coming out of two speakers. The key is the mid section of the eq. This may make a world of differance. Even without altering your patches. On the kross grand piano. I made a host of variations off of the grand piano. And renamed them. Now I'm a happy man. I had to alter mine because on my speakers. And most ive tried it on. It never sounds like it does on the store monitors. So I never got that sound they attracted me to it. In the store. At home. I was ready to send it back. Until I decided to try modifing the patches.To sound good on my system. I'm happy now. Always looking for improving on the pianos. On all synths. It's just me looking for that Holy grail of pianos.