HI - I am a noob here. Started building my set up with a Denon avr x760BT and Dali Oberon 3 floor speakers. For the subwoofer so far I have been making do with my old Sony HTIB subwoofer, now lookng to add a proper subwoofer. Could you please help suggest a good subwoofer with tight bass in the range of 50-60K INR. The room size is 20 * 24 feet. Looking forward to guidance here.