tuning frequency for dd1008a

xxxbasshead
10+ year member

CarAudio.com Veteran
Want to start building a box fro three dd1008a but dont know what to tune it to? will be for a daily driver, listen to mostly rap and hip hop with r&b and reggeaton now and then. dd site say max is 3 ft^3 48" port opening and 20 inchs long which is about 40 hz is that best or tune lower?

 
so this is what i came up with so far any input will be appriciated looking to start this box maybe friday or monday morning.

net volume 2.69 after subs and port

tuned to 35 hz

43.5 port area (14.5*3)

26.5 port lenth

so what u think? go bigger? tune lower? or about right?

 
option 2 for a bigger box:

net volume: 2.89 after subs and port (max i could do)

port area: 69.75

port length: 37.75

tuned frequency: about 37

better first box i had planed or number two?

 
yup..im gona start on my box for the 1508 today //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

good luck //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 
yup..im gona start on my box for the 1508 today //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
good luck //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
^^^ imo, in my wifes car i have a 1508 in 1 cuft with 19" of port and its just pure:drool:. the first box with only 16" of port just didnt do it for me.

to the op, imo the first box sounds better. the subs will play very good 1/2 octave below tuning. so a tuning at 35 hz should be good to about 25hz or so.

 
nice wanna make sure i can get thoes 20s..... lol
if you realy want the 20hz range(there isnt must in that range though) you may want to tune to near 30hz. you will loose some in the 50 to 80hz range but it should sound very, very good. in general, low tuned boxes usually have a flatter and smoother responce.

 
hmmm i think for now i am gonna run the first box and see how i like it. if it doesnt please i have been thinking about running a beastly 15 or i will make the box for the 8s bigger and tune lower.

 
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xxxbasshead

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