In Reply to: RE: I concur (55Hz?) posted by Charlie8521 on July 5, 2012 at 12:38:00:
80 is too high. It's a thumb rule for hometheatre and nothing more. How low can your speakers go? Surely lower than 80.
Every subwoofer integration I do here uses 24db/octave lowpass for the sub and a crossover frequency from 50-65hz depending on which speakers I am using the sub with. The 65 hertz situation is with a sealed box design with 7" midbass drivers. The 50Hz situation is with a ported design using nominal sized 8" "midwoofs".
Unless you're running 5" high-Fs drivers in a sealed box there would be no need to cross over so high.
The NHT may also have 2nd order (12db/octave) slopes, making it very hard to elminate localization if crossed over above 55 or 60Hz.
80Hz with a 2nd order is almost always locatable IME. 80hz with 4th order is bad enough... I like 4th order, 65 MAX.
I don't own a speaker that requires a higher crossover point and except for home theatre I don't recommend that one does! ;)
Cheers,
Presto
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Follow Ups
- RE: I concur (55Hz?) - Presto 12:48:45 07/05/12 (1)
- RE: I concur (6.5 woofer, 45Hz) - Charlie8521 17:54:14 07/05/12 (0)