It runs since with me along with my Yamaha Piano Craft E810, which I and a few other owners believe in the depths only at a higher volume provides the desired result (otherwise it is of course at the price level unbeatable!).
In conjunction with the YST FSW 050 the system brings a really respectable performance on the dance floor, especially at a slightly lower volume. In a frequency range for the subwoofer output highly accurate and does not begin to rattle, like other representatives of his trade.
The exterior appearance is simple and unobtrusive, coupled with a high quality finish.
The volume control of Subs ranges from "barely perceptible" to "small earthquake" (0-10) - recommended in my opinion is the middle step 5, if not 4, otherwise the bass take the upper hand. However, you can hear dubstep or similar with the device, the controller can gladly times exceed the 7.
All in all, I can only give a buy recommendation and put it particularly PianoCraft owners with the standard boxes to the heart of the YST FSW 050 here!
Have fun terrorizing the neighbors! :-)