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In Reply to: RE: Down firing vs forward facing subwoofers - what are the benefits and differences posted by airtime on November 06, 2016 at 07:12:00
In my experience down-firing subs load the room differently. I think they are less likely to excite room nodes so you get better in-room response. Whichever type you get, you can always turn it sideways to see if it makes a significant difference.
Follow Ups:
the nodes with the unaided ear while walking away from the subs to the back of the room. I then confirmed it with a Radio Shack decibel meter and located my listening position at one of the high spots. My HSU subs are not symmetrical.
I have not tried to listen for the high and low nodes with any forward facing subs yet.
1st order crossover =6 dB/oct
2nd order = 12dB/oct
3rd =18dB/oct
4th = 24dB/oct
The other variables are frequency and "Q".
If I was going to EQ the subs,I would use a parametric equalizer.
Generally speaking the top and bottom crossover frequency are not the same .Otherwise there would be no blending of the drivers.Unless the top-end and said subwoofer have the same roll-off in frequency response
If you hear the sub independantly from the satelites,your sub is either
(1)too high in level
(2) too high in frequency
(3) poorly located and may never simulate being connected to the upper frequencies
Tom:cat
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