The Monolith M-215 Dual 15" Subwoofer from Monoprice is a true monster. Music and movie lovers seeking superior bass reproduction need to look at the Monoprice M-215 dual 15" ported subwoofer. It's a 2000-watt, 12 Hz-capable beast.

Oh boy... Monoprice is continuing the expansion of its Monolith line with a super hardcore subwoofer offering, the Monolith  M-215 dual 15"  ported sub that's priced at $2500. 2000 watts, extension to 12 Hz, CEA2010 measurements, THX certification (pending)... this serious stuff. I'll post pictures when I check it out in person this Thursday, Sept. 12. at CEDIA 2019 in Denver.

Raw data:

Key specs:

Xmax: 25mm (one-way)
Xmech: 90mm (peak-to-peak)
Enclosure: Slot vented HDF cabinet with horizontal and vertical bracing
Amplifier: 2000Wrms
Frequency Response: 12-200Hz (Extended) 16Hz-200Hz (THX)
Harmonic Distortion: