When you buy a TS (ThunderStorm) subwoofer from EVE Audio, you will be getting a first grade product that delivers adequate and precise control over the bass frequencies in your room, without any low-port noise distortion since all TS subwoofers have a passive radiator. Your system will sound as a whole, not just a sum of parts.
The TS110 model features a very efficient 400W PWM amplifier that drives a proprietary 10" woofer. This guarantees a frequency response of down to 28Hz, up to 300Hz, for a maximum output power of 108 dB (SPL @ 1m) with plenty of power for most needs.
One thing worthy of mentioning is that the DSP section, which uses a high resolution BurrBrown converter, only affects the bass driver operation.