In regards to the amp's volume, I just noticed that as I never turn up my PSR2000 all the way, and since I have the amp plugged into the 1/4" outs, then the amp cannot be turned up all the way.
I never turn up the PSR2000 all the way because my vocals distort, and there is a very real chance of blowing a speaker. There is no way on the PSR2000 to independently control the amp and the keyboard. If I want to test the maximum volume of the KP-100S, I will have to do so by plugging it into the RCA inputs via an adapter. I will do this when I need extra volume. On the PSR2000, when you are plugged into the RCA inputs, you get maximum volume output, but no control of output volume.
I will purchase the Ultimate stand when I pass by a music store.
Unlike you Scott, I don't have and cannot afford to have another amp at this time - especially since I would hardly ever use it. I can afford a subwoofer, which I will buy. For auditorium and large outdoor gigs, I will rent a PA.
Don't dismiss a savings of 30 seconds during setup and take down. If you do 500 gigs in a year, 30 seconds becomes 4 hrs. and 20 minutes. That's a significant amount of time. If you keep the amp for 5 years, then it comes out to 24 hrs. A whole day that you spent fumbling for cables and plugging them in.
Just a thought,
Beakybird