RB, my listening room is similar to yours, though a bit larger, at 16' X 34' w/cathedral ceilings. Speakers are custom built 12" Tannoy HPD's (ca 1975 Dual Concentric, which have been converted to Hard Edge surrounds, and custom outboard crossovers).
The bass was good without subs, but I felt I could use more bass in my large room. I added a 15" Tannoy passive sub, which I power with a Crown XTi 2002 (1600 Watts when bridged to mono, into 8 ohms), and a DIY 12" sub w/Eminence subwoofer driver. These two subs have put the finishing touch on an already good sounding system. The bass is very good, not at all overstated. I couldn't ask for more, I feel a closer connection to my music, which now has a foundation that gets me to where I need to be. Nothing much to do now but listen to music in a very satisfying way.
I wouldn't rule out subs for your situation, the right sub(s) might just be what you need to finish your system off.
Hope you find what you need, regards,
Dan
The bass was good without subs, but I felt I could use more bass in my large room. I added a 15" Tannoy passive sub, which I power with a Crown XTi 2002 (1600 Watts when bridged to mono, into 8 ohms), and a DIY 12" sub w/Eminence subwoofer driver. These two subs have put the finishing touch on an already good sounding system. The bass is very good, not at all overstated. I couldn't ask for more, I feel a closer connection to my music, which now has a foundation that gets me to where I need to be. Nothing much to do now but listen to music in a very satisfying way.
I wouldn't rule out subs for your situation, the right sub(s) might just be what you need to finish your system off.
Hope you find what you need, regards,
Dan