I have both a Trace SMX and an Ashdown but prefer the Trace as it gives me a much punchier sound and plenty of grit, I found the Ashdown a little to sterile but maybe just the model ? I used to use the Trace with a 1x15 and 2x10 set up but recently have stopped using the 15 and still find the 2x10 giving a full sound, easier on the back as well, if I had a choice I would get a 4x10 but I never seem to see one when I have the spare cash :-)