Treisara, how would you like to bridge it?
If you want three pairs then #3inv o/p to #6 i/p, #2inv o/p to #5 i/p & #1inv o/p to #4 i/p. Pre-amp outputs go to #1 i/p, #2 i/p & #3 i/p.
Speakers are connected to RED terminals ONLY, 6 -ve 3 +ve, 5 -ve 2 +ve, 4 -ve 1 +ve.
Any questions feel free to email me at email@example.com, if you want a pdf of the manual send me your email and when I get back to work next week I will scan it and email the scan to you. Hope that helps.