Subwoofer Suggestion

I hate to throw water on the party but if all you have to spend is $1,500 you are better of not doing a subwoofer. For that money you will never do your Focals justice. The overall effect will be worse than no subwoofer at all. A subwoofer system to match those speakers would be at least $4000.00. I would hold off till you have more to spend.

Nonsense. By what metric does $ = ♥?

A decent sub, properly implemented, increases realism beyond all proportion to the frequency response. 

ieales,

" A decent sub, properly implemented, increases realism beyond all proportion to the frequency response." I couldn't agree more. So many conversations regarding subwoofers seem to focus on bass. My experience is that properly implemented subwoofers improve everything across the audio spectrum and when done correctly you can't tell the subwoofer is on. Well, you can't tell it's doing anything, until you turn it off.

it would be a great mistake to not check out the SVS Sb 3000 sub it has the most latest technologies
it is the little brother of the great ultra 16
at $1000 beats anything at $2K 
great app for adjusting your room 18 hz
and a dual voice coil ,meaning nice tunefull bass even at lower volumes 
and a 45 day audition, and they pay shipping very compact  and a 5 yr warranty won sub of the year in 2019

@audioman58 

Yeah I'm thinking of the Sb3000 the only problem I see there is that it wont have enough output for the room. Also there's no 45 day audition here in Philippines. If ever I'm gonna go the single sub though it would be either that or the PSA V1500.

Kilo how big is your room ,
land this sub puts out thunderous bass don’t think it can’t fill your room my room is 30 ftlong  by 16 wide 8 ft ceilings  I sit in the front seats are 12 ft away and I get plenty of bass and never coming close to using it’s output maybe 60% at most.
if you have the extra $$ the SVS ultra 16 Is Great  I was thinking in the future to add a second sub to bring more balance thevalways recommend 2 subs for all room s have nulls .the app for iPad 
droid is excellent  plenty is power