Hello, I’m building my first HTS and I am stuck on getting a sub. I ordered the Polk Audio HTS-12 but got offered the REL Acoustics HT/1003 for the same price (€449), any idea which one I should go for? The room is 15x15ft. Has anyone ever tested both, usage is for movies and tv shows. I have the Jamo S807 5.0 system, Jamo’s Atmos speakers and a Denon AVR X1400H. Much help would be appreciated.