tuning too low.....?

[luv2shrOOm 10+ year member]

well, i built a box for 4 15" se's tuned to 29 hz and it sounds like ***. it's loud, but only hits one note hard. the box is 15 cubes with a divider in the middle for bracing which gives me two chambers each @ 7.5 cubes with each chamber having two 6" ports 19.25" long.

what should i cut ports down to to give me the best tuning for my subs/box?

any help would be very appreciated....

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[luv2shrOOm 10+ year member]

i was thinking 33 or 34...anybody

 

[Xprime4 10+ year member]

Im in the same situation as you i feel like my Q is hitting way to low/no audible enough. Try tuning few hz higher than tell me how it change the way it sound

 

[dragnix 5,000+ posts]

you should get subs that hit more than just one note

 

[mazzasec 5,000+ posts]

I am tuned to 32hz and can hit every note 29-50hz and still be above 145 on all those notes.... Maybe your box just wasnt built well

 

[bass-aholic 10+ year member]

Run more port area. Replace those 4 6" ports with 4 8" ports about 25"-30" long each. Will give you a tuning of mid 30's.

 

[bass-aholic 10+ year member]

If you cant fit ports that long play with this calculator and see what you can fit, either way you need more port area. P.S its the second calc downhttp://www.carstereo.com/help/Articles.cfm?id=31

 

[Linkz 10+ year member]

Run more port area. Replace those 4 6" ports with 4 8" ports about 25"-30" long each. Will give you a tuning of mid 30's.

I would say do the above.

You can also save money and use concrete tubes they come in 8, 10, and 12" sizes. I would fiberglass them or put some resin on the outside at the least though.

You could also just add another 6" aero to each chamber of the same length, that would raise tuning and port area.

 

[luv2shrOOm 10+ year member]

thx guys, imma cut 5" off each which will give me 33Hz...i'll try that

and my box is solid mazzasec, but thx for the check move

 

[Linkz 10+ year member]

thx guys, imma cut 5" off each which will give me 33Hz...i'll try thatand my box is solid mazzasec, but thx for the check move

bbp6 is telling me 32.06hz with a peak around 47hz.

Hope it works out for you.

 

[luv2shrOOm 10+ year member]

thx man