As has already written grafvontilly this Sub when adjusted by hand, and after hearing the rest of the system very inconspicuous until it times the middle of it off ... then drops an abruptly missing on what. My listening room is approximately 10sqm large office. This brings this little sub playfully vibrates, boxes, bookcases, closets and desk when you play the tracks for matching and turning up loud enough.
What I want to praise the Extra is its speed, precision he plays every note and not deafened still larger cheaper subs. I could him with a Magnat Monitor Supreme Sub 301A compare my setup ... the 301A was played against the wall ... more there is to it. The SDS-8 holds the Q100 which are renowned for their precision with loose and complemented them perfectly. For someone who likes to "Bass Enhanced" listening ... ie bass heavy headphones preference and uses the equalizer all the way he likes, therefore, just like the Kef Q100 not be the ideal choice.
Those who are interested but want to spend not so much should seek for a "Sunfire SDS-8 - Packaging damages - Black". I found my way and regret buying any second.
