Thanks for all the suggestions - the problem is now solved. Yes, Alec, the root bass was the part that was lacking, and thanks for your step-by-step guide on fixing it up, as I have never ventured that far into the mixer before.

Now for my interpretation of the cause. I don't have access to a KN6000 anymore so I cannot verify this, but I'm fairly sure of my facts because I know what it sounded like on the 6K. I surmise that the root bass settings in my panel memories / sound memories as saved on the 6K were not recognised when I loaded the files into the 7K. I say this because the root bass setting on all the panel memories I use for this piece were set (on the 7K) to Electric Bass, level 105. I presume Electric Bass is the default. Other parts (L, R1 and R2) were all set correctly. After some fiddling around, I found that these organ sound memory settings I was using had a Church Bass 16' and a Church Bass 8'. When I changed the root bass from Electric Bass to Church Bass 16' I got the sound I was expecting, ie the sound I used to get on the 6K. So I have now re-saved on the SD card the panel memory settings for Ave Maria, with Church Bass 16' as the root bass sound. I have left the level at 105 for the moment, but I may adjust that when I have listened to it a bit more, and tried the whole piece at a higher level - there's heaps more headroom on the 7K!

Tony - interesting about having the keyboard up against a wall. I used to have it there, but I had to reposition the keyboard as I found some of the wording over the buttons difficult to read due to reflection from the main room light. So I turned the keyboard round 90 degrees, so it is now facing into the centre of the room.

Finally, yes I am very satisfied with my KN7000, even though I have not yet got into using the new sounds. I found the sound on the 6K was good, but the 7K is even better. 'Crisper' is probably the word that best explains the difference. Oh, and 'Louder'.

Mike