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In Reply to: RE: Why two subs at 50 Hz posted by EmailTim on March 27, 2014 at 09:02:35
Even if the sub cut flat at 50Hz, it would likely be locatable. In theory if you stuck the sub mid-way between the speakers this would be less of a potential issue.
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Not True. If you cut off a sub at 50 Hz with a sharp cut off you can play loud sound below 50 Hz and you won't be aware of the sound. I was standing within a foot of a woofer cut off at 65 Hz and about 6 feet from the mid/tweeter towers(Pipedreams by the way) and my ears told me the bass ALL came from the towers. And every one else experienced the same thing. One guy stood next to the speakers and told the owners the woofers weren't working. Huge wave lengths are totally Omni-directional and 65 Hz is around 16 feet.
The 'locatability' of a low frequency source is related to 1. Frequency produced and 2. Size of the listening space. Or perhaps the longest dimension.
A BIG space could have localizable 65hz bass…but it'd have to be a fairly large room.
The other aspect is just how messed up a space you're trying to bass load. In my area, I have 8 walls (count 'em…..8) a flat floor and a ceiling pitched asymmetrically down the long way. My den acted as a helmholtz with very exaggerated / boomy bass until I relocated the sub while there are 2 other openings to the room…..down the hall, which is next to the RH panel and into the kitchen which is at the opposite end of the room, which is about 25 feet long.
I've literally crawled and inspected all over the room. Very few if any bass 'bumps' and the sub is accoustically invisible.
Crossover is 40 or 45hz with the panels (MG1.6) running full range.
Just my observations…from admittedly limited data.
Too much is never enough
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