Awesome subs, great for theaters, clubs, bars. Powerful and accurate

I've been using this sub-woofers for over three years many people have knocked at my business door trying to
sell me new sub-woofers , there is no one that could offer me something better that what I have over the years I'm still impressed with the quality of sound from these tannoys b950 , I have 3 of them running along with 8 Tannoy V12hp
Frequency response 25Htz --------------------250Hz great for effects!
and 2400 watts

Best in the kind , powerful , The Tannoy B950 is a dedicated subwoofer designed for high definition sound
reinforcement at low and ultra-low frequencies. It will extend the power bandwidth of
SuperDual sound reinforcement systems to below 30 Hz, making it ideal for effects
in club, theatre and concert sound reinforcement. Where ultra-low frequency
enhancement is required with increased system headroom and maximum impact,
combined frequency overlap is possible with cabinets like the B400.
The B950 is intended for use on the ground and can be close stacked, while the main
system is flown. This powerful loudspeaker is capable of delivering high sound
pressure levels with extremely low distortion while maintaining a uniform frequency
response throughout its dynamic range. This makes the speakers capable of
consistent intelligibility and tonal quality at any listening level.
The B950 comprises two 18-inch high efficiency bass units housed in a heavily
braced optimally vented enclosure. Ruggedly constructed from multiple-ply
hardwood the B950 features carrying handles and inserts for castors.