It packs a pair of eight inch drivers and a 520 watt amplifier.
If you're in the market for an in-wall sub you might want to take a look at Sunfire's latest. The HRSIW8 packs a pair of eight inch long-throw drivers that utilize Sunfire's own Stillbass technology to make sure your walls aren't being pushed around by the sub.
You'll find a frequency response from 33Hz up to 150Hz and a 106dB maximum output. The sub also comes with a 520 watt rack mountable amplifier with filtering options and room optimization. You can pick up the HRSIW8 now for $1,700.
Source: Electronic House