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Mini Karlsonator (0.53X) with Dual TC9FD's
Mini Karlsonator (0.53X) with Dual TC9FD's
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Old 19th August 2019, 04:29 PM   #3401
cakeman is offline cakeman  Finland
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Small update, I have a pair of 0.53X Karlsonators equipped with Dayton Audio PA130-drivers and now they are paired up with one very inexpensive Behringer A800 amp. Oh boy, this feels like a match made in heaven. Sounds absolutely amazing! And for you nay-sayers, Yes I know there are obvious limitations on the 5-inch drivers etc. But this combination of speakers and amplifier sounds just so damn good, so I might as well enjoy it!
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Old 19th August 2019, 08:07 PM   #3402
xrk971 is offline xrk971  United States
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Mini Karlsonator (0.53X) with Dual TC9FD's
Thanks for that Cakeman!



I have not heard the PA130’s in a Karlsonator in a while - but my memories of it are very fond indeed. It’s one of the best sounding speakers that can be had for this price and this size cabinet. Despite the 5in size, they have great “chest punch” thanks to the 90dB sensitivity.
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Old 23rd August 2019, 08:51 AM   #3403
danb11 is offline danb11  United Kingdom
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Default Karlsonator 3.5 wooden frame??

I'm building a system for a friend who is after a vintage look (varnished box/grille). Could I build a wooden frame around a K3 TC9, what would be the best way to go about it? I read that FC is the preferred material to ply. I'd like to use the score and fold plans as my carpentry skills only extend as far as building boxes!
If I caulk the wood to the outer FB, would that affect resonances? Or perhaps I could use dense foam dampeners between wood and FB?
Any thoughts on this?

Or perhaps xrk has a better suggestion to put 2 TC9's and a sub to use that will appease my friend's retro-look requests and my personal lack of woodworking skills?!
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Old 23rd August 2019, 09:47 AM   #3404
twocents is offline twocents  South Africa
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Mini Karlsonator (0.53X) with Dual TC9FD's
Quote:
Originally Posted by danb11 View Post
I'm building a system for a friend who is after a vintage look (varnished box/grille). Could I build a wooden frame around a K3 TC9, what would be the best way to go about it?
I often wonder about this approach and if / or how it will affect the sound. I was also thinking that one can make a wooden frame or shell with bottom, top and sides just big enough for a FC Karlsonator enclosure to slide in snugly from the back. Furthermore, one could probably omit the FC aperture on the FC enclosure and have a wooden aperture on the front of the wooden shell and still slide the FC enclosure into the wooden box from the back.
We look forward to see your build and impressions. And yes, it is a great idea to plan for a sub to compliment the Ks - a 2.1 system.
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Old 23rd August 2019, 02:56 PM   #3405
danb11 is offline danb11  United Kingdom
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Yes, that seems the most logical approach. I'll report back in a few weeks.
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Old 23rd August 2019, 03:22 PM   #3406
jhofland is offline jhofland  United States
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When X and I made some plywood 0.53 Karlsonators one of the things we did, per X's skills, was to put some foam core on the back side of the aperture board. If you choose to do the slide in approach I'd recommend you do that.
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Old 23rd August 2019, 11:58 PM   #3407
xrk971 is offline xrk971  United States
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If you are going to make a wooden box, why not just omit the foam core (except for the lining on the inside of the front aperture)? Seems like you would be building two boxes. If you want to make it look like a conventional speaker, just put a thin raised lip around the perimeter of the front aperture (rectangle) and use (black or brown etc) speaker grill cloth to cover it. The slightly raised lip lifts the fabric off of the k aperture outline - and it would look like an utterly conventional rectangular prismatic box with a full front fabric grill.

Like this:
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Old 25th August 2019, 02:47 PM   #3408
danb11 is offline danb11  United Kingdom
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How do you mean X? Are you suggesting building the internal structure out of FB in a wood box? Seems to take away the lovely simplicity of the score and fold plans? Your K3.5 and and K5's seem to be the most liked and respected ways for a non-craftsman to utilise small FR's. I don't want to try and reinvent the wheel :-)
I agree that if I'm going to have a grille anyway, using FB for the K aperture doesn't matter at all. I'll just plan it to be recessed slightly into the wood box, so there is room to mount a grille flush.
Anyway, assuming thats what you meant, I'll build something with the slide-in approach for now and take a few basic measurements to see if anyone notices anomalies.
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Old 25th August 2019, 04:07 PM   #3409
xrk971 is offline xrk971  United States
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Ok, I guess you are saying it’s easy to make the internal structure of the TL out of foamcore. It’s easy for you to make a rectangular prismatic wood box - so combine the two. Sure, that should work. Veneering the foamcore with thin wood works too. Not a slide in shell but applied directly.
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Old 30th August 2019, 12:39 AM   #3410
multi is offline multi  Australia
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I need a mid range horn for a horn system need to crossover at 250 HZ would a Mini Karlsonator work ; I have Karlsonator using a 15 inch could I use 10 inch speaker In big Karlsonator

SMALL SIGNAL PARAMETERS of 10 inch
DC resistance(Re)
5.4 Ω
Resonance frequency(Fs)
53.7 Hz
Moving mass(Mms)
47 g
Compliance(Cms)
0.19 mm/N
Force factor(BL)
21.4 N/A
Mechanical Q-factor(Qms)
5.9
Electrical Q-factor(Qes)
0.21
Total Q-factor(Qts)
0.20
Equivalent air volume(Vas)
40 I
Voice coil Inductance(Le)
2.9 mH
Diaphragm area(Sd)
380 cm2
Reference efficiency(Eta O)
2.8 %
SHIPPING INFORMATION
Net weight
3.6 Kg
Multipack size (1) (W x D x H)
270x270x180 mm
Multipack weight
4.1 Kg

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