Cubic feet for hdc3 18

[Buck 5,000+ posts]

How many cubic feet is recommended for the HDC3 18? They have all the other ones but the 18. Is it like 8 cubic feet?

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[grimreper912003 5,000+ posts]

How many cubic feet is recommended for the HDC3 18? They have all the other ones but the 18. Is it like 8 cubic feet?

I think it's more around 6

 

[Notloud00 10+ year member]

I think it's more around 6

yep 6

 

[sml238 10+ year member]

yah the 15 is 4 18 is 6

 

[x2o 10+ year member]

6 is recommended, but you can go from 5.5-7 from what I've seen and still sound good. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[sml238 10+ year member]

6 is recommended, but you can go from 5.5-7 from what I've seen and still sound good. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

tru staytment

 

[Buck 5,000+ posts]

Aw sweet so I could fit 2 in the cab...

 

[Buck 5,000+ posts]

What about the DD's 18?

 

[MasterOfAllBass 10+ year member]

What about the DD's 18?

i think i saw the same. its on there website under the boxs. also 6 cb @ 38-40hz ull love it

 

[Buck 5,000+ posts]

i think i saw the same. its on there website under the boxs. also 6 cb @ 38-40hz ull love it

I heard that 2 of them at (3518) at 9 cub ft would be good. btw I really like your avatar.

 

[DJL 10+ year member]

The HDC318 will work in 4.5 net to 7 net cubes with 5.5-6 cubes being my favorite. 38hz is best combo of highs and lows.

 

[snb778 5,000+ posts]

ok, so as of now, my best of luck has been with the 5.5cu. ft box with an 8" Sonotube, tuned to 32hz (peaking at 38ish)

I just threw in my other 6.5cu. ft box tuned to 35hz, and it wasn't quite as loud, and so far I can't notice it hitting the lows any better because of the reduced output... also an 8" Sonotube...

It seems like my trunk space is maxed out, so the bigger box cancelled out potential output... sub up, port forward. This 5.5cu. ft box is treating every sub I put in it real well for some reason

 

[grooverider 10+ year member]

not to threadjack, but what would sound good for the AQ sdc 12's? like hz and cubic feet

 

[bonesninja 5,000+ posts]

How many cubic feet is recommended for the HDC3 18? They have all the other ones but the 18. Is it like 8 cubic feet?

where did you see the recommended size for the other subs?

 

[skmfkr 5,000+ posts]

i had mine in 6cf at 40hz and 6.5 at 35hz with a aq 2200d. in both boxes i peaked 11hz above tuning. the first box did a 148 at 51hz and the second box did a 146.2 at 46hz. i would probly do 6cubes at 36-38hz. i was more impressed with my hdc315a. the box was 4.5cf at 40hz and did a 146.8 at 46hz