JBL has announced the updated Synthesis 3 Array, using speakers from the Array Series. Apparently though, the system consists of (4) HTPS400 subwoofers. The HTPS400 is THX Ultra certified, and according to the .pdf its -3db@28hz.

Does anyone know it having multiple subwoofers extends the frequency response? More SPL at lower freq. Is that why they use four subwoofers? They also seem to do this with the other Synthesis series: Syn Hercules, 4 Subs ; Syn 4 subs; Syn ONE 2 subs.

Are they just doing this more SPL at say 30HZ or for lower range say below 20Hz.

Honestly -3db@28Hz seems unimpressive for a $35,000 system. Especially when other subs nowadays seem to go much lower. The subs alone are $2000 x 4 = $8000. Seems to me JBL could make a Godzilla-King Kong-earthquake subwoofer for that much. Hey don't get mad, just an opinion.