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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: Slot loading a ported / Rb box? how much longer does the port 'seem to be'? posted by Timbo in Oz on January 8, 2007 at 15:26:45:
ending in a baffle, the accepted "extra" length is one radius. For a square port, you could either use the radius of the equivalent circular area. For a high aspect ratio rectangular port, I would use 1/2 the small dimension. It is all just a guess. The "correct" to tune a port is to measure the impedance as a funtion of frequency. the port tuning is at the minimum point between the two maximums.Jim N
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Follow Ups
- For a round port - jnorv 15:50:00 01/08/07 (4)
- If you ARE right I can only ever add 3 cms to a 6cm bi.d. port! Even IF it and the driver are slot loaded!? - Timbo in Oz 16:24:00 01/08/07 (3)
- here's a ref, to the 1.5 times theory - Timbo in Oz 18:26:29 01/08/07 (2)
- After reading your previous post (below) - jnorv 19:34:58 01/08/07 (1)
- Thanks for that! and you could also try over at Inmates - LONG - Timbo in Oz 00:35:57 01/09/07 (0)
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