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whoom instead of BOOM

hi everyone. new into home theater(though been running loudspeakers off a tv since the early 80's). anyway, i'm having a problem with the low frequencies. at the volume at which i get the spls i want(pants rattle a bit, couch vibrates etc.) i get a whooom response and not BOOM and lose definition and clarity. is it possible to acheive these spls without the "whoom" mucking it all up?
the room: 35x25x10 it is not closed in completely
the system: mirage m5si fronts, mirage 595si rears, mirage om-c2 center, mirage bps 150i sub(also working with dialing in a polk psw12 sub together), onyo txds797 processor. the front end is a panasonic dvd-s97.
THANKS!!
uncertainsmile
cheapmike
85 posts
 
I had same disappointing problem with my system. Until I installed MIT one in/two out splitter gizmo on end of toooo cheap (Radio Shack) IC going to sub from receiver, that corrects for low frequency phase shifts/smear from general purpose cables not specific to sub woofer use. Had tried placing sub (DefTech 15") different spots in room and reversing phase etc. Not sure if gizmo still available but suspect better sub-specific cable would help. Let us know how it all works out, this change to my system a few years ago was one of my most satisfying upgrades. Mike.
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uncertainsmile OP
88 posts
 
everyone thank you for your input. i think i may have led us all down the wrong path. 10x18x7 are the exact dimensions of the room, so it is not very big at all. even though a $5000 velodyne dd18 may be a solution it isn't quite my cup of tea. i'd go to a vmps or bag end type. however, i was more wondering if you all knew wether or not, despite decent quality subwoofers, is there a point where they may just get boomy and undefined sounding or is it my room, or are they really not that good. the mirage does sound fantastic at lower volumes. the best i've heard in my limited experience. i am lrking everywhere i know of to try and catch a vmps used for sale. it is tough unting ou there for one on the cheap. i may also go with a clark synthesis. thanks again guys.
shadorne's avatar
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shadorne
7,477 posts
 
Ahhhh I get it...

Clouseau: Do you have a WHOOM?
Inn Keeper: I do not know what a WHOOM iz!
Clouseau: Zimma
Inn Keeper: Ahhh.. a RRRUUUMMM!
Clouseau: That is what I have been saying you idiot! WHOOM!

You mean your Zimma is small and you want more vavoom for your whoom!
uncertainsmile OP
88 posts
 
HA! very clever mr. bond.
james bond: do you expect me to talk?
evil enemy: no meester bond, i expect you to die...
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