Help!!! Scion TC FI Q 18

[BlactimusCrime 10+ year member]

build a box, tune to about 33 and youll be happy. if u use aero ports you can adjust tuning and raise it for comps

 

[Why So Cereal? 5,000+ posts]

Agreed. Though I'd rather have a completely flat in-car response at even less' date=' too. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif[/quote']
yea thats why i chose sealed box....but i still think i can just a little louder..at least in the low 140's

 

[Why So Cereal? 5,000+ posts]

build a box, tune to about 33 and youll be happy. if u use aero ports you can adjust tuning and raise it for comps

I was going with aero ports because i had aero ports on my cvrs before. but what about simply porting the box I already have?

 

[BlactimusCrime 10+ year member]

I was going with aero ports because i had aero ports on my cvrs before. but what about simply porting the box I already have?

if you do that the ports should prolly be external so you dont make the box any smaller. im not sure what the Q's like as far as space, but 5cubes should be in the range for it

 

[Why So Cereal? 5,000+ posts]

if you do that the ports should prolly be external so you dont make the box any smaller. im not sure what the Q's like as far as space, but 5cubes should be in the range for it

ok one more question. i have the sub facing upward toward the glass...so should I face the ports in the same direction or towards the rear?

 

[Bumpin' Goalie 10+ year member]

Fi recommends 6-10 cubic feet @ 28hz for their 18" Q. Obviously just a factory recommendation, but it is posted for a reason. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[BlactimusCrime 10+ year member]

ok one more question. i have the sub facing upward toward the glass...so should I face the ports in the same direction or towards the rear?

typically rear. but where ever you can fit them

 

[Kyle_Keating 10+ year member]

GTFOtuning high is for fegs.

id rather have a groundpounder doing 142@ 35 than a fart box doing 150@55

Good job captain obvious!

 

[Why So Cereal? 5,000+ posts]

Fi recommends 6-10 cubic feet @ 28hz for their 18" Q. Obviously just a factory recommendation' date=' but it is posted for a reason. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/quote']
There

Is no way ill get 6 cubes in a scion TC hatch sooo maybe I should stay sealed

 

[BlactimusCrime 10+ year member]

Good job captain obvious!

youre the one suggesting he tune to 50....

 

[BlactimusCrime 10+ year member]

ThereIs no way ill get 6 cubes in a scion TC hatch sooo maybe I should stay sealed

point. 139 is respectable tho.

 

[Kyle_Keating 10+ year member]

I'm suggesting an 11dB is not realistic by showing you need to make a stupid box to do it. My advice is 6.3 cubic feet tuned to 27Hz

this yields a Chebyshev Butterworth alignment and should sound great with a lot more low 30Hz output than the sealed option.

 

[Bumpin' Goalie 10+ year member]

point. 139 is respectable tho.

Higher than many, if that helps you feel better about it lol //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

And yeah, space is valuable in those TC's.

 

[pro-rabbit 5,000+ posts]

I would think with a properly designed and built enclosure you would do low to mid 140s with that setup. I'm not sure what kind of space you have back there, but if you can squeeze out like 7-8ft3 you can do a slot port and do fairly well.

 

[Why So Cereal? 5,000+ posts]

Higher than many' date=' if that helps you feel better about it lol //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
And yeah, space is valuable in those TC's.[/quote']

it does seeing as im only in high school n this is my first time trying this. lol but i think i may go ported but leaning towards staying sealed because i do love the sound quality. maybe if i try off some tones instead of the songs i just randomly had on cd's and actually let my amp cool first i'll do a little better