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Open baffle speaker driver array

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discrete badger View Drop Down
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Post Options Post Options   Thanks (1) Thanks(1)   Quote discrete badger Quote  Post ReplyReply Direct Link To This Post Posted: 14 Mar 2022 at 10:19pm
Agree - in my experience sealed box is the way to go for quick clean bass. But it's not too "popular" out there in hifi-land because reflex-loading gives the designer an easy way to get bass emphasis at lower power handling. But without great care it tends to emphasise the resonant frequency of the chamber leading to the so-called "1-note bass" and can sound flabby and slow. But not always - it's possible to do it right but it's just more engineering - some subwoofers even go as far as having multiple chambers with different resonant frequencies.

Incidentally, I've had really great results with the sealed boxes in my second system and quite serious levels of digital EQ (+10db) below rolloff (20hz-30hz in this case). But the sealed boxes in question have 12" bass drivers, the amp has 220w/chan and I listen at moderate levels, so there is plenty of unused voice-coil heating and cone excursion to exploit! I'm also using digital PEQ to tame some room and cabinet resonances. It shouldn't work as well as it does. I can switch in and out instantly for comparisons, and with no EQ they just sound like the lovely 1970's speakers that they are, enjoyable but not truly realistic. But with EQ they keep the nice midrange/treble but most of the mush disappears from the mid/high bass and true low-end extension arrives. They sound "big" and impressive, and the midrange has hugely increased clarity - a very welcome effect which I find always happens when the mid/high bass is tamed. 

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Ash View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ash Quote  Post ReplyReply Direct Link To This Post Posted: 15 Mar 2022 at 7:35am
I could put a CHR 120 in a big sealed padded cardboard box and only have the main 11MS on open baffle. These are lightweight cones and won't be slow even if loaded.
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