Opinions..... why not ask right...

[CodyWayne718 10+ year member]

Well that's simple enough! Thanks

 

[Jeffdachef 5,000+ posts]

Dude the formula for subsonic is you're boxes tune frequency divided by .75

its multiply, not divide. when you divide by a decimal you are actually going to get a bigger number.

 

[shammyhavik]

Right, right

 

[CodyWayne718 10+ year member]

Subsonic filter on amp goes from 10-50Hz.... do I just guess whereabouts 33Hz would be or is there a way to know for a fact where the filter is set?

 

[CodyWayne718 10+ year member]

Lol probably should have asked somewhere else besides a thread on subs huh Oh well

 

[shizzzon 10+ year member]

subsonic setting varies by application.

It needs to be set in accordance to the application.

It's a mechanical filter.

Turn the filter all the way up, play a tone about 10hz hz below the tuning of the port.

Make sure this tone is 0db.

Slowly turn the filter down until either you do not want it to move anymore or it's reached it's limit.

IF it reaches or exceed it's limit, immediately turn filter back up slightly until it's fixed.

 

[CodyWayne718 10+ year member]

Yeah but how on earth do you know where it's set when there are only two numbers to go by?

 

---------- Post added at 11:33 AM ---------- Previous post was at 11:33 AM ----------

 

I tuned it by ear guess I'm just nervous since it's my first ported enclosure lol

 

[Jeffdachef 5,000+ posts]

Yeah but how on earth do you know where it's set when there are only two numbers to go by? 

---------- Post added at 11:33 AM ---------- Previous post was at 11:33 AM ----------

 

I tuned it by ear guess I'm just nervous since it's my first ported enclosure lol

Use audacity, generate a frequency tone and trust your ears. Its a rough guestimate but the frequency tone will help out.