Greeting all,

We are updating our home theater system.
It is a smaller room and about the same size as the living room my SE84UFO2 lives. 12x14ft.  

The UFO system is strictly analog.

The HT is getting a new Polk Audio system (4x HTS10+ 1x ES10+ 1x HTS10+ B-Q TK710).

Now, just for fun, I would like to (temporarily) hook the HTS10 powered-sub to my UFO.
(https://www.crutchfield.ca/p_107HTS10/Polk-Audio-HTS-10-Washed-Black-Walnut.html...).

The UFO  is using either a pair of Mission Ditton 66 or a pair Lii F15   Betsy.

The goal is to "relieve" the speakers mentioned above from anything below say 80htz using the Polk sub.

Can this be done? (no pre-amp or anything else).

I read other post about this connecting in parallel, or to the speakers or to the UFO itself.

Can someone explain to me like I am a 5 yr old how to physically connect this? I have two posts on the UFO taken by the speaker's cables and two posts on each speaker also taken by the cables...?

I am thinking maybe ring connectors between the post and the cable plug? Would this influence impedance or such?

Thanking you in advance.

Alain