I had the SD1500 for about 4 days before I packed it up and sent it back.
I really liked the rack.
Rubber pads.....nots so much.
The deal killer was the module.
Some of the sounds I liked, the gong was one that comes to mind.
But you can't run the lineouts & USB midi out at the same time. I tried.
The main L&R out would drop out when the USB cable was inserted.
I called Simmons and got a huge run around. Finally I got a supervisor to tell me that, "Its not meant to work with audio and USB out at the same time."
Oh and zone 3 on floor tom 4 pad, starting & stopping playback of the internal songs....WHAT A PAIN IN THE A@@.
So I am patiently waiting for my DM10X mesh head kit.
Duff