Join Date: Mar 2005
Location: Corpus Christi, TX
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Sounds like a crossover is too high? I had the M.K2.3 the little brother of the MK4 and it was TIGHT and VERY powerful. In my other rooms i would FEEL rumbles just like when you are in a the lobby of a good theater. From far away you should feel and hear the rumble just like DISTANT thunder...try moving the sub 2 to 2 1/2 feet away from the front wall and 1 foot from the side wall. My new HSU VTF-15 sounds different the more i move it. Do you have an amp with Audyessy to calibrate the sub? That would make it much easier to tailor almost perfect sound and feel in your room. My sub sounds best on its side a few feet away from the wall...you might have too much gain in your room in a certain frequency. The MK 2.3 would make me feel the bass in the back of my chair and feet...alot lot like a buttkicker! The chest part only comes if you crank it up enough to pressurize the room...which i think is nuts!
Now, with the VTF-15 even at low levels my ears feel the pressure and the tight bass also gives me a kick in the pants! If you have the new mk 4 the tightest bass will be with EQ one port open and Q of 0.3.
The 0.7 will give you a fatter sound or more boomy....i use this setting when watching UFC and wrestling..when using this looser setting i can feel the ring ropes vibrate and the body slams hit hard..but for music it is crap..ha ha. Remember, if you have the variable tuning you actually have 5 subs in one! You need to experiment with the sub to hear what you want. Let me put it for you this way. For me at least, some sealed subs are way too quiet and of course some ported subs are too boomy
with the tuning you can have the best of all worlds with the sealed, one port open and two port open modes with the Q control. You can also post in the HSU threads and Dr, Hsu will be more than glad to help! Even though you have the MK4 you can post in the 15 thread. He has been there every day!
One more thing, if your room is kind of empty " not that much furniture and no carpet" it may need wall treatments to help with the controlling of higher frequencies. Clap your hands in the room...if the sound hangs around instead of stopping on a dime then the echo could also be the higher frequencies lingering.