Wiring 4 subwoofers to one reciever

[TYRspearo]

Hello, I am wondering how to wire 4 powered subwoofers to one reciever, a pioneer VSX 519v. I understand it only has one sub out, do I have to use more than one y-splitter?
The subs are JBl es250PBK's.
Thank you,
Tyrspearo

 

[mike c]

yes, use three Y splitters