Possible to connect a sub with no high-level input to a 2 channel amp?

Bacon_Party

Estimable
May 9, 2014
13
0
4,560
I currently have a 2 channel amp and a subwoofer with only an LFE or line in connection. Is there any hardware I can buy (a preamp possibly) that would allow me to connect this subwoofer to my system without purchasing a new amplifier? The subwoofer model is a JBL ES150P and the amplifier is a Topping TP22. Thanks for the help.
 

Bacon_Party

Estimable
May 9, 2014
13
0
4,560

It would be from my desktop which is currently connected using an auxillary to RCA cable, would it be possible to split the connection using something like an RCA splitter at this point?