If you are looking at this sub its probably because, like me, you already gone through a Klipsch KSW10, a Polk PSW10, etc etc etc and are wondering what it takes to get ACTUALLY good bass instead of boomy trash and port chuff.
This is it. This sub (without any fine tuning) is such an improvement its almost offensive. Its very tight, refined bass that goes ridiculously low. The 1K price tag seemed a little steep at first but its 100% worth it. Love the app too for quick adjustments from the listening position.