[carclain]

I have 2 Logitech X-540 Subwoofers, how would i go about connecting them both up, so i could then have more bass? thanks.
I attached a diagram for what i'm thinking can work, lemme know if there is a flaw and how i could fix. 

http://i.imgur.com/HfqGq.png

 

[proton007]

Just use a splitter cable, the subs are active, so they should each have an amp inside.

 

[carclain]

could you elaborate further?

 

[proton007]

The Logitech subwoofers are from a 5.1 system, right? They are active, meaning you just provide the 3.5mm audio input (front, rear, sub).
 
What are you using these subs with?