Foster/fostex ? what a speaker 15"

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Hi World!
what a speaker
An externally hosted image should be here but it was not working when we last tested it.

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Seller says me that, this is foster Foster 250W 15inch.
Pls help me, i dont know, please identify, my speaker
Very sorry my English is bad.
70-90 liter box is good for the speaker?
And tuning 45Hz? BR Slot rectangle
 
Hard to speak about an unidentified speaker, which carries no visible label, for which you provide no model number nor Technical specs. 😛

I asked Zoltan, but his crystal ball crashed after he upgraded Windows, so he can't answer.
crystal-ball.jpg
 
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Hi there,

Without much information about this woofer, I'd try the following...

120L cabinet, rectangle port of 5cm x 25cm, 16cm long.

It won't be perfect, but should do something useful to around 35Hz, maybe a bit lower in your room.

Chris
 
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