Since no one owns an Arc yet, it’s a bit hard to compare. 

Yes. Understood. Hopefully some people will have some units soon and weigh in.

The Beam with sub makes a great combination

An Arc and Sub I’m sure will be better

But an Arc and no sub vs. a Beam and Sub - may be a competition (as Airgetlam says we have no idea yet).

Thanks Chris. If they are even somewhat comparable I think I would rather have the minimalism of the arc and have the option to add a sub in the future. 

I have the Beam + Sub combo and think its brilliant and I dont care how good the Arc is I will be pairing it with the Sub. That's if I think its a significant upgrade over the Beam. I may take some convincing on that point.

Havn't seen one in store yet so will wait a bit and see what others think.

I went ahead and purchased the sub when the gen 2 was on sale so I was able to experience that for a couple weeks.  I then returned it and purchased the arc.  The bass is not rocking the floor, but it is good.  The arc has such great sound though that I prefer the arc by itself to the beam and the sub for 98% of what I am listening to (mostly TV and movies, not music) There are definitely times that I miss feeling the bass, but I feel like I choose to have the best for 98% instead of the amazement of the 2%.  Others will differ but I am happy.

Has anyone else moved to an ARC over the past few weeks, I’m considering either pairing a sub with my Beam or getting Arc standalone?

I have medium sized living room 6m x 5m and have previously had samsung bar and sub combo,