Need help Cabinet design/dimesion for SEAS 8"

[makokoy]

I need help what cabinet dimension for this speaker below.
I just want simple bookshelf. SEAS 8"

http://www.seas.no/images/stories/vintage/pdfdataheet/h0282_p21rex.pdf

thank you

 

[Inductor]

Strange. It says Fs=33Hz and measured is 60Hz.😀
Maybe that's the 20L box, and go's down with time (a little).
Anyway, you gonna need the rest of the speaker...

I just want simple bookshelf. SEAS 8"

This is not a full range.

 

[GOWA]

makokoy, could you be a little more vague?

 

[PeteMcK]

unibox gives me 55L tuned to 37Hz for an F3 of 35; probably a bit big for a bookshelf...
35L with the same tuning will give an F3 of 43Hz, I wouldn't go smaller than that... a 6" is probably a better bet for a bookshelf...

 

[Inductor]

Is good to know more details (like planned construction, BSC? and xover frequency).😎

 

[GOWA]

The Seas CA22RNX (H1288) will give you a sealed box of 28 liters (1.0cf); f3 of 60Hz

An externally hosted image should be here but it was not working when we last tested it.

 

[makokoy]

sorry for my limited english and lack of info I thought designing cabinet based only on woofer.The 8" Seas currently in my RSL CG8 and sounds much better from the original woofer but lack of base . I'm thinking of building box with intended design for 8" P21REX seas using the RSL CG tweeter and X-over this might improve the bass if the cabinet is design for this woofer? do you think I can hear difference? if so,what would be the cabinet dimension. some problem I can't find specs of my tweeter and xover
I know lot of you guys have more knowledge in building speaker cabinet.

thanks

http://www.seas.no/images/stories/vintage/pdfdataheet/h0282_p21rex.pdf

 

[Inductor]

The value for components are all there, only missing is value for the second resistor, not visible.😎
Tweeter Seas h0456/25tf

 

[PeteMcK]

Makokoy, what are the internal dimensions of the boxes you already have?

 

[makokoy]

the inside dimension maybe 9x14.5x11 and the outside is H 15.5"x W 10" x D 12"

 

[PeteMcK]

Unfortunately that box is way too small (`17L)to use with that driver, you'll need at least 35L.

 

[makokoy]

PeteMcK,

Can I ask how to get those 35Liter required for my speaker? is there a numbers in the specs to calculate?

 

[PeteMcK]

In post #4 above I gave you the answer - I put the parameters into Unibox, (which is a free download, you need MS Excel to run it), and played with the box size and tuning.
Very easy to do, give it a go.