ysp-4100 with yst-fsw150 you have probably hear or read that a sound bar can not produce the effect of a true 5 channel surround system . that may be the understatement of the century ! despite the excellent rating of the professional reviewer , the ysp-4100 do not come close ! background : the purpose of these unit be to replace a 5.2 system to reduce clutter and eliminate a `` rat 's nest '' of cable and wire . I know that the change would not produce the same result as the old system but I do not expect how far off the result would be . very disappoint ! pro : clear , crisp sound with very good voice reproduction . con : surround sound effect insubstantial . I want to make clear that the sound quality of this sound bar be top notch ! it be the lack of surround effect that be most disappointing . setup : after the physical installation , I run the initial AUTO setup . the result sound be less than DULL , no SURROUND , all sound come from center of sound bar . over several day , I make numerous Manual Adjustments . the sound improve but nowhere near what $ 1,900 + of speaker should produce . I then make slight adjustment to microphone position , furniture , and close a door . ran AUTO SETUP again and get the same DULL , no surround result . also find that AUTO SETUP wipe out manual setting . I reestablish manual setting . the source of the audio be a large factor . in general dvd and Cable movie sound the best . once in a while I run across a movie with superior sound and the sound bar reproduce this almost to my expectation . even though the sound spread beyond the sound bar itself , it remain in the front half of the room . you can get these same result from most $ 300 sound bar . I consider try to live with these speaker for a few month think that perhaps I would get use to the difference . but why should one spend nearly $ 2000 just to accept inferior result ? both unit have be return !