is this tuned right ??

[elkiko2004 10+ year member]

acording to me this box is tuned to 35 hz....what you think ??

Click to read more...

 

[BJ The Man 10+ year member]

depends on the ungiven side of the second port piece.

If the second port piece is about 13ish inches long then your at 35 an this is all w/o sub displacement at 5.8cuft

 

[elkiko2004 10+ year member]

actually the port is 18.53'' and the box with out displacements is 8.9 cubes....so the port displacement is 1.34 cubes and the sub displacement 0.26 cubes...(fi btl 18'') so the box would be 7.4 after all displacements right ??

 

[PurposeSoap 10+ year member]

3/4 Inch wood?

 

[Chevyaudio 5,000+ posts]

This was VERY quick math, so I would appreciate if someone checked it for me.

But I got...

4.6 cubic Feet

126"^2 of port area

27.53" of port lenght after end correction.

Tuning Freq=44hz.

 

[Chevyaudio 5,000+ posts]

scratch my math...already found a mistake. Im working on it.

 

[Chevyaudio 5,000+ posts]

6.9 cubes

126"^2 of port

27.5" of port (after end correction)

Tuning=36hz

next time try and make the drawing a little more detailed //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif, and a little closer up, had to really look to get some of those dimisions.

 

[elkiko2004 10+ year member]

yea it is 3/4 mdf...double bafle too..

so ?? what you think...this is tuned to

 

[elkiko2004 10+ year member]

bump..need some help here...//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[UndercoverPunk 5,000+ posts]

Why in the hell would you put double stacked 3/4" strips at the end of the port wall?

That's awesome.

 

[tRiGgEr 5,000+ posts]

6.35ft^3 net volume tuned to 35.98hz.

Not taking sub displacement in to calculation...

 

[elkiko2004 10+ year member]

you sure it is 6.3 ft3 bro ?? accordin to my maths it is 7.7after port displacement....lets see...

internal measurements...

21x21x35 = 8.9 ft3

port displacement 6x21x16.5 =1.20 ft3

so 8.9- 1.20 = 7.7 ft3 after port displacemen right ??

or let me know what im wrong please...

thank you bro

 

[tRiGgEr 5,000+ posts]

PM sent with corrected figures for most recent box posted.

 

[tRiGgEr 5,000+ posts]

Redline should be your port length dimensions...

 

[orphe 10+ year member]

I came up with 37