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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 11th July 2019, 02:36 PM   #3371
xrk971 is online now xrk971  United States
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Mini Karlsonator (0.53X) with Dual TC9FD's
Quote:
Originally Posted by CraigSu View Post
Found it! Post #2954 Mini Karlsonator (0.53X) with Dual TC9FD's

Great interior pics that really show the usage of the foam core and melamine.
The link you have above isn't correct. The post number is - but here is an easy to click link.

Mini Karlsonator (0.53X) with Dual TC9FD's

I will post link in Post 1 as well.
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Old 11th July 2019, 02:42 PM   #3372
xrk971 is online now xrk971  United States
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Mini Karlsonator (0.53X) with Dual TC9FD's
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Originally Posted by freddi View Post
Gee - that's really elegant and pretty at the same time. Perhaps a little klam sub would be fun. Here's one done by Carl's kid - maybe 15 or more years ago. I can't tell from the poor picture resolution if that's the passive radiator facing forwards or not. It provided bass for the 4 (8-10 I guess) Scan-Speak 10" variovent flanking speakers.
Hi Freddy, I am a fan of the XKi dual driver sub. I have been using mine for years and the sound has always been clean and reaches deep. Even for a dual 5.25in driver box, it has been a very good all around sub capable of highs up to 500Hz.

XKi - X's ab initio Karlson 6th Order Bandpass

Click the image to open in full size.

Click the image to open in full size.
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Last edited by xrk971; 11th July 2019 at 02:53 PM.
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Old 12th July 2019, 01:49 AM   #3373
CraigSu is offline CraigSu  United States
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Quote:
Originally Posted by xrk971 View Post
The link you have above isn't correct. The post number is - but here is an easy to click link.

Mini Karlsonator (0.53X) with Dual TC9FD's

I will post link in Post 1 as well.
Odd, when I click on either link it takes me to the correct post. I have my view set to 20 posts per page. Would that make a difference? Regardless, thanks for putting it in post #1.
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Old 19th July 2019, 02:12 PM   #3374
xeffjayx is offline xeffjayx
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Having a hell of a time trying to learn sketchup. Do you know of plans that upfront detail measurements?
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Old 19th July 2019, 04:06 PM   #3375
xrk971 is online now xrk971  United States
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Mini Karlsonator (0.53X) with Dual TC9FD's
Quote:
Originally Posted by xeffjayx View Post
Having a hell of a time trying to learn sketchup. Do you know of plans that upfront detail measurements?
You can use the other plans on Post 1. The Sketchup plans let you make very precise parts if you are familiar with how to use it. Here’s how I make speakers: a ruler and pencil and I draw the profile on the side wall, then I add pieces to the sketch of the hand drawn profile.

For example:
http://www.diyaudio.com/forums/attac...fold-plans-pdf

For people versed in precision woodworking, the Sketchup is the bomb.

This is my plan:
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Old 27th July 2019, 01:36 PM   #3376
maseco is offline maseco  Portugal
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Quote:
Originally Posted by xrk971 View Post
I was remembering the sim incorrectly - it was the dual TC9FD that is more ideal for 0.53x than dual 3FE25. For the 4FE35, you need to expand the length and depth to 0.60x scale and reduce width to 0.47x scale. The 16ohm ones cannot be made to work well unfortunately, the Qts is just too high and you get a large bass overshoot. It may sound ok, but not ideal. The other option is to run dual 4ohms in series. I will have to simulate that though before you try to build it. I am away from my simulation computer at the moment as I am on travel. Give me a few days and I will take a look at how to get an 8ohm nominal dual 4FE32-4ohm in series for 8ohms nominal. It will probably be a wash on sensitivity though.
Hi people.
Thanks for sharing your amazing job.
I think about use dual 4fe35, hill bem enough low end for my living Room 16x17 feat ? Or maybe tc9 is beter?
Congrulatins from Portugal

Last edited by maseco; 27th July 2019 at 01:39 PM.
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Old 27th July 2019, 04:28 PM   #3377
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Mini Karlsonator (0.53X) with Dual TC9FD's
Sure, try it with 0.60x scale in height and depth and 0.47x scale in width. You should have plenty of low end with this speaker with the dual 4FE35. In a 16x17 ft room, you will also have some room modes that will make the bass extend quite a bit lower as well.
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Old 27th July 2019, 07:27 PM   #3378
maseco is offline maseco  Portugal
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what impedance should I use?
What kind of filter should i use?
I have this amps tda7492, tda8932, tpa3116, tda7498, lm1875 is powerful enough?
thank you
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Old 27th July 2019, 09:17 PM   #3379
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Mini Karlsonator (0.53X) with Dual TC9FD's
If you want an 8ohm impedance use dual 16ohm drivers. If your amp can handle 4ohms go with dual 8ohm drivers. Any of those amps will work. Personally I like TDA8932 (nice bass and no turn on pop) and you don’t need more than 25w. For dual 16ohm drivers the speaker is close to 96dB at 2.83v so louder than you need probably at 25w.
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Old 28th July 2019, 03:27 PM   #3380
Mas Penk is offline Mas Penk  Indonesia
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Hi X,
I was wondering what if Audio Nirvana Super 15 can be installed on Normal size of your 0.53X Karlsonator?
I want to build it but I need to know if it sounds good to build this scaled down size into normal size (15")?

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