LSi25/Def Tech sub cable config question

Options
Hi guys,

I just bought a Rotel RSP-1582 (V2) processor that has 2 SUB OUT ports.

I have my Def Tech Powerfield 1800 connected from the LFE IN port on the sub to the SUB 1 OUT port on the processor.

I have the binding post bridge clamps removed on the LSi25s and have one RCA cable connected to the LFE IN port on the left speaker, and one RCA cable connected to the LFE IN port on the right speaker. Both RCA cables connect to a Y splitter and the male end plugs into the SUB 2 OUT.

Is this the correct way to connect everything up in this type of configuration?

Thanks,
Jason
THE SYSTEM
Polk Audio LSi25 Mains
Polk LSiF/X Surrounds
Polk Audio LSiC Center
Definitive Technology PowerField 1800 Subwoofer
Parasound Classic 7100 Pre/Pro
Parasound 2205A Amplifier
Pioneer Elite BDP-05FD Blu-ray Player
Monster HTS 2600
Microsoft XBox 360
Samsung PN64D550 64" Plasma