KEF KUBE 10b or 12b w/LS50 Wireless?


I’m thinking of picking up a sub for my KEF LS50 Wireless speakers and am eyeballing these two.  The room in question, my man cave, is about 15’x15’, about 10’ ceiling. The speakers sit on my desk about 60” apart.

Is the 12b overkill or will it work well? I’m sure the 10b is enough but for another $100 I can have a setup that can move into a larger room later if I want.

Thanks for any input.
asahitoro
You can never have too much subwoofer.  You can always turn the gain down on a larger/more-powerful unit if you think it's too much, but you can't exceed the limits of a smaller unit. 


Thanks for the input. Just wondering if the 10” will blend with the LS50s better?
Either should blend easily.  The whole 'smaller drivers are faster/more-agile/tighter/more-musical' thing is a myth.  
The LS50 is an excellent speaker for sure, the Kube will fill in the missing sub, but without the same finesse as the LS50. The 50’s do work better on stands and IMHO have plenty of low end when set up right. R400b would be a better match, used prices should bring one in on budget 
Thanks for the input anygreg,

I’ll checkout the R400b.  My other option is a SVS SB12 NSD which I have and am not currently using.  Floor stands won’t work as they need to be on my desk.  I do have some IsoAcoustic Aperta stands I could use but I don’t want to make the KEFs too high from my sitting position.