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Multi-Way Conventional loudspeakers with crossovers

Large 3-ways design / build
Large 3-ways design / build
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View Poll Results: Will MJL21193's crazy design work as proposed?
Yes 57 51.35%
No 7 6.31%
Maybe. 34 30.63%
I'll laugh when it doesn't. 13 11.71%
Voters: 111. You may not vote on this poll

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Old 5th March 2010, 07:19 PM   #281
MJL21193 is offline MJL21193  Canada
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Ok, been busy with other pursuits lately but I'm back on the case.
Enough of the measuring sidewall resonance - my point is proven: the panels are much stiffer using this construction method.
Some issues:
I don't like the midrange box, the fact that it is metal bothers me. I've decided to replace it with a particle board box, the bottom of which will form another lateral brace that extends to the back panel.
I'm also seriously considering the ribs on the outside. I have been obsessed with this idea ever since mentioning it (in a somewhat humourous context). This is purely aesthetics though and much needs to be done before I can even consider doing it.
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Old 10th March 2010, 07:15 AM   #282
planet10 is online now planet10  Canada
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Large 3-ways design / build
Quote:
Originally Posted by MJL21193 View Post
Ok, been busy with other pursuits lately but I'm back on the case.
What's her name John

dave
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Old 11th March 2010, 02:36 AM   #283
okapi is offline okapi  United States
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Quote:
Originally Posted by MJL21193 View Post
I'm also seriously considering the ribs on the outside. I have been obsessed with this idea ever since mentioning it (in a somewhat humourous context).
I was in no way joking when I suggested the use of external bracing.
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Old 11th March 2010, 03:00 AM   #284
tinitus is offline tinitus  Europe
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Large 3-ways design / build
I have long wanted to try a "box in box" design
Which means that "inner box" and "outer box" would be totally seperated from each other with acoustic material
You may call it "floating"
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Old 20th March 2010, 07:08 PM   #285
SunRa is offline SunRa  Romania
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So, what's been going on lately?
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Old 20th March 2010, 07:18 PM   #286
event horizon is offline event horizon  England
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Quote:
Originally Posted by tinitus View Post
I have long wanted to try a "box in box" design
Which means that "inner box" and "outer box" would be totally seperated from each other with acoustic material
You may call it "floating"
Sorry to go off topic but i have done this previously. It's impossible to totally (ok maybe not quite) seperate the inner from the outer enclosure, however if you only connect them at the edges & corners you can fill the gap with dry sand. If you brace the internal box you'll force the inner enclosure panels resonant frequency right into the midrange. The sand will then kill off any midrange attempting to get through to the outer panel. You have a great enclosure all of a sudden. Wharfedale did something similar with the SFB (sand filled baffle).
Quote:
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So, what's been going on lately?


Possibly


Come on John, we are dying for an update here chap..

Mark.
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Old 24th March 2010, 12:58 PM   #287
MJL21193 is offline MJL21193  Canada
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Quote:
Originally Posted by planet10 View Post
What's her name John
Work.



I've been swamped and no time to breath even.
I'll get back to it soon...
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Old 24th March 2010, 08:35 PM   #288
peterbrorsson is offline peterbrorsson  Sweden
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Quote:
I've been swamped and no time to breath even.
John, you are not a good boy. Get in line with the rest of the world and complain of the un-employment rate.

BTW, I got a reality check this week. I connected my Genelec monitors and lo and behold, wife and children sat down and listened for 45 minutes!
Could have been the remastered Led Zeppelin CD, or my so called "horns" were out of the picture.

Anyway, get you some time to breathe now and then. Have heard that it is not so good to stop inhaling/exhaling. Whatever your interpretaion

Cheers,
Peter
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Old 26th March 2010, 08:26 PM   #289
SunRa is offline SunRa  Romania
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Hello John, although I couldn't follow your example regarding speaker innovation, I did try your recipe for Pancakes. I therefore can testify here that these are some killer pancakes, we have never made tastier ones!
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