Having a little trouble connecting it. I got the Yamaha HTR-6030 and the VX-10 Sub by Velodyne. I attach two picture of my items. I know i have to connect the sub woofer out from the receiver to the subwoofer. but at the back of my sub, it don't have the LFE input(or am i wrong)? Instead it has two RCA connectors. they labeled as L and R. do am i require to use the Y connector for it? sorry if it sound stupid, as i am new to this lol.