Mini Karlsonator (0.53X) with Dual TC9FDs

You're a star! And I was kinda joke/digging at you lot with your ancient measuring sticks - I'm sure somewhere in the backwoods of North America things are still sold by the cubit ;)

I can work out inch:mm just fine, Greg. And thanks for your work - it's really great!

I know my CNC is meant to be a paying enterprise, but I can see me spending far too much time and money playing with speaker cabs... I thought I got out of chasing the dragon on hifi, only to find the death by a thousand cuts of low-priced hifi :)

Can you tell me what these three things are just behind the baffle?

https://www.dropbox.com/s/y6498e55r21u1mw/Screen Shot 2015-01-22 at 11.22.06 am.png


Those are cleat blocks for attaching the front wing panel. It's pretty hard to get the driver in there if the front panel doesn't unscrew. I think I only used 3 per side in reality. Of course you could always install the driver(s) first, and then glue on the front, but then the drivers won't remove easily for tweaking stuffing, etc.

Yeah, all these tech hobbies are a black hole for time and effort. Just wave at the dragon, don't chase him.

RE joking - Uh ok, I often have to deal with people that are completely confounded by our system based on fractions of the King's toe (or whatever). Normally I make fun of it myself. Cubits? no, but we do use bushels and pecks.:D
 
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Founder of XSA-Labs
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The mile is a great unit, that is actually a "natural" metric unit based on 1000 paces of the average Roman soldier. A pace is 2 steps and equal to 5.28 ft. I happen to have the average Roman solder's pace so when I hike, I count 1000 paces - I am within 2% distance accuracy compared to GPS. What the heck is a kilometer but 1000 lengths of a standard platinum bar stored in a safe in France.

I will keep using "Imperial" or should we say "Roman" units. :)
 
Founder of XSA-Labs
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For those following this thread, you might be interested in the XKi - a new compact Karlson variant. Using an RS100-4 paper or aluminum you can get 50Hz bass extension in a 9in tall x 5in wide box.

More info here:

http://www.diyaudio.com/forums/full-range/268524-xki-xs-ab-initio-karlson-6th-order-bandpass.html

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That's the correct one. I'm dismantling a set of 2.5's towers into a smaller bookshelf for WAF and will have 4 w4-1337's left over. I was looking at some full range designs for a tube amp, and the Karlsonator is on the top of the list. Figured I'd toss them in a box and have a go.
 
Founder of XSA-Labs
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Can someone explain how to calculate a slot port from a tube port? Given that you know the dia. and length of the tube.

To first order match the cross sectional area and length. The slot port will have a bit more skin or surface dag depending on aspect ratio so maybe size a bit shorter than tube but not by much. I use akabak which accounts for added surface drag.
 
Anyhow, I don't have any reservations about recommending this build. You will not be disappointed. For the cost of a $10 Vifa, 1 sheet of foam core, some pillow stuffing, and a $0.85 terminal cup - this speaker is awesome!

I am very happy with it. :D

Cheers,
X

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I am particularly interested in a single Karlson, is there a detailed dimension for a single or is it the same as dual?
 
after hearing 0.4X foamcore Karlsonator with TC9FD, Karlsonator 6 prototype with L.Cao F6 (and whizzerless FE164) plus my lovely Karlsonator12 with Nirvana Super10, 12LTA and Fane TC250 - -I'm mightily impressed. Almost bet you never would have thought your creation would be a household (well diyaudio community household) name.

Lee Adams K5 T-line had elements of this variant - was it offset enough to run smooth?

An externally hosted image should be here but it was not working when we last tested it.
 
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