That's similar to the 18" JBL woofers I use, which is the 2245H. The difference is the 2245H has a foam surround and has a bit lower resonance and low frequency limit of 20Hz for the driver alone. It gives up 3db of efficiency from the 2241H. They are in the 4645 subwoofer cabinet that I re-tuned for 12Hz. Playing together, they go down to around 16Hz flat.