cabinet bracing volume issue

[rajesh srinivas]

Hi, everyone.

Conffusion how to add box bracing volume to the already calculated
Speaker box

Ex..my speaker box internal vol is 84 ltrs..and accordingly if the total bracing vol
For this 84 ltrs comes to say 0.5 ltrs. So now the net internal vol of the box comes to 84.5 ltrs.

Should i once again design the LxWxH for the box for this new 84.5 ltrs..if i do so
Again the bracing vol will change for this new dimension...

Whereas port and driver displacement remains the same but bracing vol varies as box vol increases..

Any one has come across this issue and found answers..

Regards
Rajesh..

 

[tcpip]

At these levels, the error introduced by the bracing does not change the response significantly.

In fact, you may find that the T/S parameters of your driver vary more widely than the impact on box volume due to bracing. So, I suggest you ignore the bracing volume, specially when it's changing from 84 to 84.5 units.

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[rajesh srinivas]

I just figure out what my box vol for my speaker is with its Fb (port tunning) and what my port displacement will be (with materials) and add those two figures together. I also figure in my speaker and bracing displacement and add those in to. You get a gross internal volume.

I basically build the enclosure to those internal dimensions.. You may not end up with perfectly even overall dimensions but it's accurate.

thanks
rajesh