|30th December 2017, 10:14 PM||#41|
Join Date: Aug 2013
I am glad that I am allowed to visit this forum.
At first ... I apologize for my grammar mistakes and wordplays (... i favor german lyrics).
.. I am very late with this 'update', sorry .. but I think it should be added that you could find another solution at the
'JBL PROFESSIONAL ENCLOSURE GUIDE':
'CHART#6' show us that 2225/2226 is working in 4cubicfeet tuned to 40Hz ... known as the 3678enclosure (with 2226).
'CHART#8' show us that i.a. 2235 is working in 5cubicfeet tuned to 30Hz ... like the 4507enclosure.
It could also be said, that it is possible to drive the 4507enclosure with 2226 ... known as 4647 tuned to 40Hz with 6.5"portlength.
In summary, you could say that 4647 could tuned down to 30Hz with 11"portlength.
In my opinion this is possible for homeuse (...).
With best regards.
Last edited by osram; 30th December 2017 at 10:20 PM.
|30th December 2017, 11:12 PM||#42|
Join Date: Oct 2014
Lower tuning requires more port area to compensate.
Also shorter ports sound better.
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