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What should the line look like in LspCad? (1 Viewer)

ClarkZ

Agent
Joined
Apr 2, 2002
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41
I've been playing around with lspcad and I am having a problem with what the line should look like. I am trying to design a vented sub. Here are two questions/problems I'm having

I have been able to make the line completely flat, but it always drops off before it gets to the tuning freq. of the port. The dropoff is usually around 3 db. Does this matter?

The second question is does the line need to be completely flat or is it okay if there is a 1 db drop or rise?

Thanks
 

Patrick Sun

Senior HTF Member
Joined
Jun 30, 1999
Messages
39,462
That's normal.

Depending on your room, a small rise or dip is negligible in the overall scheme of things.
 

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