Recommended Box Sixe.

[bass buster]

I have a level 4 15 which i wil be putting 1.7k into. I will be tuning at 30hz, what would be the largest recommended box size for streetbassing. I have 2 15s in 10 cubes tuned to 40hz and they scored really badly at dbdrag. 144.8 at 40hz with 3.4k on the pair. When i was tuned to 30hz I scored 146.1

[AI James]

dcsoundlab.com has this information

[loganberry]

plus the dc lvl 4 15's wont like a 10 cube box....3.5 is good from what i hear, and what i have (ive got 2 in a 7 cube before displacement)

[Decaf]

what car... and u dont burb at ur tune frequency!

if ur tuned to 40 u should burb at ~47-52hz depending on what suv/hatch u have

and id do 3-4cuft per 15 after displ. so 10cubes for 2 is a bit much, almost 3 cubes too much

personally id do 13cuft w/200 sqin port tuned 5-9hz below ur cars peak

[bass buster]

what car... and u dont burb at ur tune frequency!

if ur tuned to 40 u should burb at ~47-52hz depending on what suv/hatch u have

and id do 3-4cuft per 15 after displ. so 10cubes for 2 is a bit much, almost 3 cubes too much

personally id do 13cuft w/200 sqin port tuned 5-9hz below ur cars peak

My cars peak freq was 53 hz, i burped at that and got 140.2. i then burped at 40hz which was my peak when i tuned to 30hz and i got the 144.8 I couldnt work it out.

[Decaf]

well it would help alot to find the peak of ur car not ur boxes

try 36hz tuning so u peak ~ 42-45ish.... prolly going to be loudest around that if its an suv

[Decaf]

so what tuning got the 146.1?

[bass buster]

so what tuning got the 146.1?

My box was tiuned to 30hz, in an 8 cube box. My peak frequency was 40hz. My car is a family 5 door hatchback with the box in the boot, subs and port firing up towards the rear screen.

[Decaf]

4cubes is fine for spl but more is cuft after that shouldnt help at all

u really need to run a sealed box w/flat response so u can find the cars peak.... this can drastically add db's fast once u find it.... its worth the time

and how much power is each 15 getting? 1,700 each?

[bass buster]

4cubes is fine for spl but more is cuft after that shouldnt help at all

u really need to run a sealed box w/flat response so u can find the cars peak.... this can drastically add db's fast once u find it.... its worth the time

and how much power is each 15 getting? 1,700 each?

Yes, 1700 watts to each. Its trying to find somebody with a termlab is the trouble.