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Multi-Way Conventional loudspeakers with crossovers

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Old 5th December 2009, 06:58 PM   #1
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Default Design for B&W 3-way drivers

Hi all, my first post but I have been lurking for a while

I have a couple of old B&W DM30 (i think, see below!) sets of drivers and crossovers, and wanted to know whether anyone has any ideas on cabinet designs to suit them.
Background - the original cabinets were all but destroyed during a flood in someone's garage. Fortunately, the cabinets must have been lying on their backs, as the drivers and crossovers are fine. This is why I can't be sure of the model numbers, the cabinet rear was all but gone.
The bass driver is a DM10/23 8" unit, the mid is a 3" cone with a detachable sealing cup on the back, and the treble is a 1" dome.
I could just build a replica of the original reflex cabinets, but would love input on alternatives.
And if anyone has data on the drivers it would be much appreciated as well.
I am currently using the mid and treble units and crossovers in some sealed enclosures with existing 10" cheapy bass and they sound pretty good in a small room on the end of my little ECL86 SE amp.
BTW, my main listening speakers are Chris Rogers PRO9/TL (KEF drivers) that I built 30 years ago, and a SS amp.
Thanks in advance, Gary
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Old 6th December 2009, 05:48 PM   #2
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Join Date: Nov 2007
Default found some specs

I'm tilting toward a Metronome or a Chang enclosure. I know they are meant for fullrange drivers, but I'm sure I can make something worthwhile.
If I can get my audio generator to work reliably, I'll try and do some T/S figures for the bass driver.

I found after a lot of digging that the originals are actually DM23 models:

here are some specs

-6dB at 53Hz and 25kHz
75Hz - 20kHz ±3dB
88dB sensitivity
crossovers at 900Hz, 4.5kHz
10W - 100W on "unclipped programme"
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