Frequency Issue i guess!

[h2h0e]

Hi i have made this box tuned at 30 hz , witch is 2.75 ft , for my 2 12S RSS315HO-44, it sound good on low frenquenecy like rap music but when the frequenecy is little higher i got almost no bass compared to low frenquenecy ,so i guess its my box tuning right ? View attachment 26541671

any easy solution , to resolve that //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif ?

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[hispls 5,000+ posts]

Tuning is very low. Position of box in the car can sometimes help response.

 

[h2h0e]

Tuning is very low. Position of box in the car can sometimes help response.

yea ive heard low tunning for that sub is good

 

[gckless 5,000+ posts]

When you say "a little higher", around what frequency is that? And what are your crossover settings like?

 

[h2h0e]

When you say "a little higher", around what frequency is that? And what are your crossover settings like?

im not sure im judging by the sound here an example , with that song bass is perfect : Tech N9ne - Demons ( Feat Three 6 Mafia ) - YouTube

but with that one my bass is weak :

,higher frequency than the second song ( eminen ) is great tought. my lpf is around 120 hz my subsonic is around 20 hz