mainly 2 do with the type and format of the controllers, if it looks slightly like a mixer (studio mixer not a dj mixer), meaning at leats 8 "long" fader with something like 3-6 rotary knobs on top of each then it's designed for easy controlling of yer sequencer's audio mixer!

Something like remote 25 is designed 2 give ya the "missing keyboard and knobs/ buttons)" 2 yer soft-synths/ samplers...

Hope this clears it for ya!


Z