Hi @maczones ,
[https://www.petervis.com/speakers/soundsticks/parts.html|Here’s] a lot of info about a Soundsticks (not a Soundsticks II) that may help.
Scroll down to the bottom of the page and click on the ''Driver Speakers'' link.
In there it states (and shows in the images) that the speakers are 8 Ohm
There is a part # 300-0019-002 on the speaker but I got no results when searching using it, unless you can read [http://www.hifi-forum.de/viewthread-104-12700.html|German] which I think leads [http://www.spectrumaudio.de/breit/aura/auraNSW1.html|here] as a substitute but you better double check it