JBL high efficiency speakers, (2) 130B woofers, (1) 275 compression driver and (1) 075 Tweeter per side. JBL C55 rear horn loaded enclosure.
Problem: Need more low bass extension.
Would a rear loaded horn or a bass reflex enclosure work better for a home music system? The C55 enclosure has approx. 22 to 23 cubic feet internal volume. If I convert the C55 to a bass reflex system, would the enclosure be too big or is bigger better? The flex port would have to be approx. 210 to 220 square inches according to JBL specs. The enclosure could be partitioned off to have a smaller woofer chamber. I would mount the woofers and put the reflex port in the lower section of the enclosure where the horn mouth is now. The horn mouth opening is 27" x 32". By covering the horn mouth with different size openings I was able to increase low bass extension but greatly reducing upper bass, especially at 125htz (over -10db.). The smaller the opening the bigger the change. For example, I tried 3", 5", 7", 9" and 12" x 32" openings. I wonder with the woofers and port on the bottom of the enclosure if that would change. I am open for suggestions and any ideas you might have to improve my speakers.
Thanks Jimbo
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