high-pass rumble filter

For livingroom sound better than in a theatre.
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les winter
Posts: 6
Joined: Wed Aug 10, 2011 4:51 am

high-pass rumble filter

#1 Post by les winter »

My new THTLP is done. Frequency sweeps seem to show it unloads below 25 hz. Is a high pass filter recommended?
thanks.
Les

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Radian
Posts: 2014
Joined: Tue Jul 29, 2008 12:56 pm
Location: Tucson, AZ

Re: high-pass rumble filter

#2 Post by Radian »

It rolls off, but the driver never “unloads”. Unless the cab has a leak in the throat or rear chamber. High pass not required and/or recommended.
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4 - AT
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les winter
Posts: 6
Joined: Wed Aug 10, 2011 4:51 am

Re: high-pass rumble filter

#3 Post by les winter »

Thanks for the reply Radian.

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Bill Fitzmaurice
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Re: high-pass rumble filter

#4 Post by Bill Fitzmaurice »

Radian wrote: Tue Nov 22, 2022 11:06 am It rolls off, but the driver never “unloads”.
+1. Bass reflex speakers unload below the tuning frequency, where the port output and cone output cancel each other. Sealed rear chamber speakers don't. The THT has a sealed rear chamber.

les winter
Posts: 6
Joined: Wed Aug 10, 2011 4:51 am

Re: high-pass rumble filter

#5 Post by les winter »

Thanks Bill

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