sub sonic frequency question.

[mlocke32425 10+ year member]

4- 12" shallows in 4 cu. ft. with 1200 watt mono, what should i set my subsonic frequency to? i had two 15's on the same amp and ran it at about 80, should the 12's be the same? thanks in advance for any help

Click to read more...

 

[DEdwards 10+ year member]

You had your subsonic crossover set at 80Hz? You were missing alot of the bass weren't you?

 

[thegreatestpenn 5,000+ posts]

do you mean lowpass filter or subsonic filter? I can see a lowpass filter set at 80, but not a subsonic filter

 

[rocky 59 5,000+ posts]

you set the subsonic filter to 80Hz ??

thats waaayyyy to high i have mine set to 22.

 

[mlocke32425 10+ year member]

sorry 50hz, and box is sealed

 

[w00tah 10+ year member]

do you mean lowpass filter or subsonic filter? I can see a lowpass filter set at 80, but not a subsonic filter

Don't listen to Will, he knows not of what he speaks //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

I'd set your LOWPASS filter for about 80 hz. The subsonic, should be 20hz or lower, and only if your enclosure is ported.

Kef

 

[rocky 59 5,000+ posts]

if its sealed dont set it at all

the sub sonic filter is to give your subs a little break in a ported box from bottoming out on super low notes

 

[thegreatestpenn 5,000+ posts]

50Hz is still WAY too high for a subsonic filter. it should be set as low as possible IMO (mine went as low as 15Hz)

 

[thegreatestpenn 5,000+ posts]

Don't listen to Will, he knows not of what he speaks //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif


I'd set your LOWPASS filter for about 80 hz. The subsonic, should be 20hz or lower, and only if your enclosure is ported.

Kef

"I must BREAK you" //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

where chu been at?

 

[mlocke32425 10+ year member]

ok subsonic filter at 30 and low pass filter at 80, is that good for the 12" or should i change it?

 

[mlocke32425 10+ year member]

sorry wasnt looking at amp and got confused

 

[rocky 59 5,000+ posts]

if the box is sealed up tune it all the way down or even off if you can.

 

[thegreatestpenn 5,000+ posts]

thats' still a high SSF setting IMO but whatever

 

[rocky 59 5,000+ posts]

50Hz is still WAY too high for a subsonic filter. it should be set as low as possible IMO (mine went as low as 15Hz)

I feel sorry for your subs.

 

[mlocke32425 10+ year member]

so subsonic all the way down and lowpass on 80