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Multi-Way Conventional loudspeakers with crossovers

XO protyping box:  "The Box of Doom"
XO protyping box:  "The Box of Doom"
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Old 6th April 2010, 01:40 PM   #1
grantnsw is offline grantnsw  Australia
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Join Date: Aug 2006
Default XO protyping box: "The Box of Doom"


I just found Keith Kidder's BoD


( I searched here and found nothing, so I thought I'd post it. )

There's some serious work and expense gone into it, so I guess 'you' would have to be building LOTS of speakers to justify the cost?

With so much component variability, wouldn't too low a Z potentially be a problem for an amp, and what sort of xo topology, ie LR2, Bessel etc would you end up with?

Keith's design and construction is amazing, but wouldn't a 'cheap' active biamped solution be more (cost) effective?

comments? thanks, Grant
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Old 6th April 2010, 05:48 PM   #2
planet10 is online now planet10  Canada
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Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
XO protyping box:  "The Box of Doom"
I'm with you on the last. I got a DCX2496 (and a full set of I/O transformers) to do 1st order prototyping. Once narrowed down, i'll be happy to use aligator clips for acyual passive, i don't do enuff mutliways to make something like the BoD worthwhile.

AudioXpress sells a commercial, budget version of this kind of thing

community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
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Old 6th April 2010, 11:55 PM   #3
Pano is offline Pano  United States
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Join Date: Oct 2004
Location: SW Florida
XO protyping box:  "The Box of Doom"
Datz nutz!

But the multi-tap inductors are the key to making it all fit. =)
Take the Speaker Voltage Test!
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Old 7th April 2010, 01:11 AM   #4
TerryO is offline TerryO  United States
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Location: Seattle,Wash.
The BoD has been around a long time. I seem to remember reading about it ten plus or maybe closer to fifteen years ago on the old Bass List. At that time simulation software was "very" pricey and this approach would have been quite viable. I thought it was pretty neat and despite what some may say, it works!

Best Regards,
"If you have to ask why, then you're probably on the right track."
quote from Terry Olson's DIYaudio Forum application
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