Spl Weekend

[Lord Baccus 1]

this weekend i built a 3cf enclosure with 2x 4" areoports 7" long ea and did a 151.7db

lil Jeff showed up with a 12" Mtx and did a 141.8db then noticed the box was not sealing where the sub seats in the boxx

enuff blablabla

new Custom SD window decals.

mine

Jeffs

jeff using 1 amp

jeffs 12"

my single 15" boxx

2x 4" areoports

1st place & Highist Spl for the show 151.7db

[Aaron Clinton 2,372]

Nice number, looks like you are starting to get more out of that explorer.

[Lord Baccus 1]

and the amps

Thank you i have allways wanted to break the 150db Barrier with a single sub

i beat a guy with 4 15" DD 9515's yesterday

anyone digging the new SD decal ???

i took pics of the sun setting @ the lake & dropped it in as background for the cut text

Edited March 3, 2008 by Lord Baccus

[///M5 2,833]

Nice work!! Is your box in the position that you metered in?

[sundownz 197]

Congrats again!

[Lord Baccus 1]

Nice work!! Is your box in the position that you metered in?

Yes i have tried different positioning and subs forward / Ports up along the back window line yield the highist SPL !

if i lay the box on its back and fire the subs up & port to the rear i lose 2.3db

[Lord Baccus 1]

Congrats again!

i am out of flyers too pass out @ the shows ! everyone was asking about the amps agine

[sundownz 197]

Congrats again!

i am out of flyers too pass out @ the shows ! everyone was asking about the amps agine

I'll have to send you some more

[Lord Baccus 1]

im supprised noone asked about the redickulesslly thick faceplate on the boxx 2.5" thick

did not have time too FG Resin the inside of the boxx, or add 45 degree angles and tweek etc etc etc:

one of these days ill get too be on the sundown audio Team page

Edited March 3, 2008 by Lord Baccus

[BKOLFO4 29]

Nice work!! Is your box in the position that you metered in?

Yes i have tried different positioning and subs forward / Ports up along the back window line yield the highist SPL !

if i lay the box on its back and fire the subs up & port to the rear i lose 2.3db

Everyone always assumes subs up, port rear is best in an SUV. Before my wall, my truck was loudest sub rearward, port out the side. . .

Brian

[bigjae1976 0]

Lord Baccus...congrats! Was that the Texas Bass Production event? Hopefully I'll get up there soon.

[ford302redneck 15]

and the amps

Thank you i have allways wanted to break the 150db Barrier with a single sub

i beat a guy with 4 15" DD 9515's yesterday

anyone digging the new SD decal ???

i took pics of the sun setting @ the lake & dropped it in as background for the cut text

That decal is pimp.

Jake needs to do a run of em.

[Lord Baccus 1]

and the amps

Thank you i have allways wanted to break the 150db Barrier with a single sub

i beat a guy with 4 15" DD 9515's yesterday

anyone digging the new SD decal ???

i took pics of the sun setting @ the lake & dropped it in as background for the cut text

That decal is pimp.

Jake needs to do a run of em.

all he has do do is call me i can get er Done

i need bigger SD amps & a Nightshade 15" !!!

[johnecon2001 82]

Damn nice score!

[Lord Baccus 1]

Damn nice score!

Thank you Good Sir

i am testing an idea i had,

what i do is measure the distance from the sub too where the mic will be placed then convert the inchs into feet / times 4 / gives me the quarter wave # / i take that # and devide it into the speed of sound 1131 and get the Freq i need to port the box to

if i do it x2 i get the 1/2 wave and a lower tuning freq.... for street beet

then i look for a sub with an Fs of 34 or higher and Bammmmmmmmm

[audioxtremes 0]

Nice score. Looking good as always.

[danracer 0]

nice score man!!! you are motivating me to keep competing lol...and the sundown sticker looks tight!!

[Lord Baccus 1]

Thanks Guys

im all hard core SPL weekend warrior

if Jacob wants i can do a run of em and he can send em out with the amps like the one that came in the box ( white )

i can print anything then cut it for a decal

all 3m w/ 3m lam

my work # 972*960*7200

SpeedPro Imaging

ask for Brian

[shizzzon 461]

Damn nice score!

Thank you Good Sir

i am testing an idea i had,

what i do is measure the distance from the sub too where the mic will be placed then convert the inchs into feet / times 4 / gives me the quarter wave # / i take that # and devide it into the speed of sound 1131 and get the Freq i need to port the box to

if i do it x2 i get the 1/2 wave and a lower tuning freq.... for street beet

then i look for a sub with an Fs of 34 or higher and Bammmmmmmmm

what exactly do you mean if you do it x2 you get the 1\2wave? multiplying by 2 will double frequency result... do you divide in half?

In my case, it would be 25 hz, lol Some box i was testin the other sounded pretty loud between 30-33hz then got loud again at 39-42hz then hit the car's Fs at 49-54hz.

[Lord Baccus 1]

ok ill try this !

as an example...

if i measure from the placed sub/cone ---> to where the mic go's ( in the passenger Kick )

and i get 84" - translate that into FEET 7' -

take 7x4 ( 4 / quarter wave ) gives me 28

so i take 28 & devide that into the speed of sound ( 1131 ) equals = 40.39Hz

_________________________________________________________________

if i take that same 7x2=14 divided into the speed of sound ( 1131 ) = 80.78Hz

so with this theory if you want to tune lower go for the 1/8th wave

7x8=56 divide 56 into 1131 = 20.19Hz for a Sq Monster...

if im doing this wrong someone ( cough*M5///*cough) please feel free to step in and correct me

[shizzzon 461]

i've never really studied this, i've heard about it but never was really interested.

I take it -

1\4wave is for gettin loud, can also be used for SPL comp?

1\8wave is what you say, ultra SQ, hehe

what would 1\2wave be considered? the frequency will always be super high....

[Lord Baccus 1]

[Lord Baccus 1]

i've never really studied this, i've heard about it but never was really interested.

I take it -

1\4wave is for gettin loud, can also be used for SPL comp?

1\8wave is what you say, ultra SQ, hehe

what would 1\2wave be considered? the frequency will always be super high....

in my 2000 Ford Explorer i have 2 Magic #'s 36Hz / & 54Hz

but the exception is when its HOT out side my # dropps too 52Hz ???!!!???

i do not know why this Happens ?

[danracer 0]

well that should be because everything expands if you apply heat...so that afects the lenght the wave has to travel and it affects the frequency....might not be right but thats how i understand it....

[danracer 0]

okkk i think my theory is right...say the 7' you used for yor example you add 1 inch or 2 so that ill give you 7.2x4=28.8

so that 1131/28.8=39.27hz....1 hz less than on you example