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Subsonic Filter on Amplifier

 

Jameson
Unregistered guest
I have 2 JL Audio Subwoofers in a ported box and the box is tuned to 34 Hz my amps subsonic filter can be set from 15 Hz to 40 Hz should I set the amps filter the same as the box's tuned frequency?
 

Silver Member
Username: Lbeckner

Tulsa, Ok Usa

Post Number: 124
Registered: Oct-04
No. Set it a little lower. Like 25hz.
 

Gold Member
Username: Glasswolf

NorthWest, Michigan USA

Post Number: 7092
Registered: Dec-03
about half an octave down from the tuned port freq.
25Hz is about right
 

Bronze Member
Username: Alpineblaster

Post Number: 12
Registered: Jan-05
how do u know what to set it at becuase i have the same thing and i dont know where to put it i have a sealed box and my subsonic range begins at 10hz
 

Silver Member
Username: Lbeckner

Tulsa, Ok Usa

Post Number: 177
Registered: Oct-04
you do not need subsonic filter with a sealed box.
 

Gold Member
Username: Glasswolf

NorthWest, Michigan USA

Post Number: 7235
Registered: Dec-03
you can set the SSF to 20Hz for a sealed box.
that will prevent power from being wasted trying to reproduce any signals below the range of hearing.
Although in actuality most source material is filtered below 20Hz already.. CD is. MP3 is. Radio can't even reach 20Hz. Neither can tapes.
you'd pretty much need a signal generator to go below 20Hz unless it's just harmonics of produced frequencies anyway.
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