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Hobby Engine Abrams Re-build

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Old 01-27-2013, 07:10 AM
  #26
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Default RE: Hobby Engine Abrams Re-build

IS there any magic on that tuned port? I.e critcal size or diameter based on speaker size?
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Old 01-27-2013, 07:25 AM
  #27
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Default RE: Hobby Engine Abrams Re-build

There are some guidelines on making a box, but due to this tiny frequency range, just porting any box will do.

http://www.bcae1.com/spboxnew2.htm



Once you start adding some power to the speaker is when THAT dimension will come into play.














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Old 01-27-2013, 07:37 AM
  #28
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Default RE: Hobby Engine Abrams Re-build

That is some interesting reading.............For the size of speakers we are talking about though, I agree, probably just port the thing and see what it sounds like.
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Old 01-27-2013, 08:00 AM
  #29
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Default RE: Hobby Engine Abrams Re-build

I need to add a "box" to my T34 tank I built a few years ago. I replaced the WSN speaker with a small one from the group I battle with and it's lacking a bit in sound depth.

But, it still has the Tamiya Sherman electronics in it so maybe it's okay to sound that way?














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Old 01-27-2013, 08:15 AM
  #30
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Default RE: Hobby Engine Abrams Re-build


Quote:
ORIGINAL: YHR

IS there any magic on that tuned port? I.e critcal size or diameter based on speaker size?
not really it just emphasizes the bass a lot lol

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Old 01-27-2013, 11:08 AM
  #31
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Default RE: Hobby Engine Abrams Re-build

ANYTHING will be an improvement... just don't go too big on the tube size as that will kill the bass.














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