2.1 connection options - LSi7 & microPRO 2000

mdaudioguy
mdaudioguy Posts: 5,165
edited April 2010 in 2 Channel Audio
What do you think the best connection option is for connecting this:
backamplifier.jpg
and this?
640A-v2-rear.jpg

Speaker level wiring - the sub only has speaker in, so I'd have to split the speaker wires off of the integrated's terminals, or

RCA from integrated's pre-outs to sub?

Will either provide a "better" solution or doesn't it matter?