4 Sundown Nightshade 18s In A Yukon Xl

[gtbike900 10+ year member]

So I Just Bought 4 Nightshade 18s And I Was Wondering What Would Be A Good Box Size To Use Im Thinking 19.5 Cubes With 4 6 Inch Aeros Tuned To 27 16 Cube After Displacemnt And Bracing Made From Birch With 2 Saz4500ds At .5 On 8 16vs And 4 270amp Alts

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[skmfkr 5,000+ posts]

needs more box

 

[rmzsuzuki89 10+ year member]

I'd go with a bigger box. And you may want to tune a lil higher. I love lows, but I usually go between 30 and 32 hz.

EDIT: ^^Beat me to it^^

 

[spencer321 10+ year member]

i'd do 18 cubes...at more like 30-32hz and i'd use 2 10" sonotubes instead of 4 6" aeroports... but thats just me

 

[KyleBechtold 5,000+ posts]

its actually fine for box size.. they don't need to much space..

 

[gtbike900 10+ year member]

my truck likes burpin at 37 and does not fall of to about 34 it loves the lows

 

[loudjeta 10+ year member]

18-24 cubes will work.

 

[RidnClean 5,000+ posts]

you should be able to get by with 2 alts

 

[gtbike900 10+ year member]

ya but with 4 alts i get the wow factor and 10mpg

 

[gtbike900 10+ year member]

and i can say i have 1080 amps of charge reved up and 680 amps at itle

 

[RidnClean 5,000+ posts]

doesnt sound "wow" worthy at all lol.

 

[gtbike900 10+ year member]

as soon as i get my new toys i will start a build log

 

[gtbike900 10+ year member]

reason on 4 alts is i will be evently reconing to dual 1s after i can afford 2 more 4500s

 

[gtbike900 10+ year member]

25k plus on 18v

 

[dbeez 5,000+ posts]

ok since this is the identical setup i was going to run in my burban i will tell you that you will want a 20 cubes box after displacement and the alts are good as far as ports go might want a little more port area and tune to 32hz the nightshades loved it..Now i have to up my build