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Thread: Subsonic Filter on Amplifier |
    
Jameson Unregistered guest |
| Posted on Saturday, January 01, 2005 - 12:40 pm: |
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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? |
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Silver Member Username: Lbeckner
Tulsa,
Ok
Usa
Post Number: 124
Registered: Oct-04
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| Posted on Sunday, January 02, 2005 - 02:27 am: |
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No. Set it a little lower. Like 25hz. |
Gold Member Username: Glasswolf
NorthWest,
Michigan
USA
Post Number: 7092
Registered: Dec-03
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| Posted on Sunday, January 02, 2005 - 12:30 pm: |
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about half an octave down from the tuned port freq.
25Hz is about right
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Bronze Member Username: Alpineblaster
Post Number: 12
Registered: Jan-05
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| Posted on Friday, January 07, 2005 - 11:19 pm: |
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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
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| Posted on Saturday, January 08, 2005 - 02:24 am: |
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you do not need subsonic filter with a sealed box. |
Gold Member Username: Glasswolf
NorthWest,
Michigan
USA
Post Number: 7235
Registered: Dec-03
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| Posted on Saturday, January 08, 2005 - 08:49 am: |
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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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