http://hometheatermag.com/floorloudspeakers/monitor_audio_platinum_pl300_speaker_system/index3.html
What struck me with this review is why a $4800 15" subwoofer cannot deliver strong low 20Hz frequencies.
"The PLW-15’s close-miked response, normalized to the level at 80 Hz, indicates that the lower –3-dB point is at 38 Hz and the –6-dB point is at 29 Hz. The upper –3-dB point is at 143 Hz using the LFE input and setting the EQ mode for maximum extension"
The little PSB Subsonici at approximately 1/6 the price and has a 12" driver
goes lower;
"The SubSonic 6i’s close-miked response, normalized to the level at 80 Hz, indicates that the lower –3-dB point is at 25 Hz and the –6-dB point is at 23 Hz. The upper –3-dB point is at 131 Hz with the LFE Input switch set to Active"
I would however like to listen to the towers. They look very interesting