Aragon 2002 Pre amp to a Monitor Audio subwoofer


I have never used a sub with this setup but am doing so now. Can I use a 2 male to 1 female Y adaptor on my preamp out and run a single RCA to the subwoofer?
Or do I need to run 2 RCA's out? I know it is a monaural signal. My Monitor sub does have 2 inputs - but if can can use one RCA - that be be mu choice.

Thanks
timdavenport1967
The problem with most such outputs is they are driven by a single output stage. If you short them, they will become mono.

Subwoofer inputs however are buffered, and keep the L and R separated as far as the preamp is concerned.

Best,

E
Thanks all. I will run 2 dedicated RCA cables and set this up like any other component. No short cuts. Now to run a second line under the house and back up through the walls.