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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 29th October 2014, 06:04 PM   #1001
djn is offline djn  United States
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Quote:
Originally Posted by prezden View Post
Well my mini's are almost finished and I am thrilled
Thanks X and everyone else for all your help.
Good looking build Prezden. The guy who builds my cabs is out with a new hip and he thinks it will be after the first of the year before he can build my minis like yours.

How do yours sound???
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Old 29th October 2014, 08:55 PM   #1002
prezden is offline prezden  Canada
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Thanks x and djn. The only thing left to do on them is a few more coats of varnish. I will have to disconnect them so I don't when that will happen
So far I have only listened to a Leonard Cohen cd (10 new songs). The sound is very even, smooth and exceptionally detailed. I could even discern the different voices of the back up chorus. Playing with one of my tpa3116 amps and a portable Sony cd player.

cheers
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Old 29th October 2014, 09:05 PM   #1003
xrk971 is offline xrk971  United States
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Mini Karlsonator (0.53X) with Dual TC9FD's
Quote:
Originally Posted by prezden View Post
Thanks x and djn. The only thing left to do on them is a few more coats of varnish. I will have to disconnect them so I don't when that will happen
So far I have only listened to a Leonard Cohen cd (10 new songs). The sound is very even, smooth and exceptionally detailed. I could even discern the different voices of the back up chorus. Playing with one of my tpa3116 amps and a portable Sony cd player.

cheers
Awesome!
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Old 30th October 2014, 03:12 AM   #1004
mikejennens is offline mikejennens  United States
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Hey x,
I bought 4 of these when they were on clearance at Parts-Express:
Vifa TC9FD-05-16 3-1/2" Full Range Driver 16 Ohm
I see parameters such as Fs, Qts, and VAS are different than the 8 ohm version. Having said that, what's the possibility a 4 of these (2 per cab) would work well in the .53 Mini Karlsonator?
I started a DCR you mentioned in this thread: http://www.diyaudio.com/forums/full-...ow-bass-2.html
Is it possible the 16 ohm would work well in these- 1 per cabinet?
Thanks,
Mike
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Old 30th October 2014, 03:38 AM   #1005
a3cervo is offline a3cervo  Philippines
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I'm considering this for my next build. Will they work well nearfield as computer speakers?about 3ft away from listening position?

Last edited by a3cervo; 30th October 2014 at 03:43 AM.
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Old 30th October 2014, 04:15 AM   #1006
xrk971 is offline xrk971  United States
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Mini Karlsonator (0.53X) with Dual TC9FD's
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Originally Posted by a3cervo View Post
I'm considering this for my next build. Will they work well nearfield as computer speakers?about 3ft away from listening position?
Yes. I have used them exactly for this and they work very well. Use the 0.4x scale with the TC9FD or 3FE25's.
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Old 30th October 2014, 12:45 PM   #1007
a3cervo is offline a3cervo  Philippines
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^ Hi X!

What is the advantage of the .53x over the .4x sonically / sound-wise? Reason i'm asking is; i have a fairly large desk and can accommodate the size of .53x.

How do these speakers perform when placed near the back wall?

Btw, you've done a very good job sharing here your projects. I appreciate your help.
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Old 30th October 2014, 04:53 PM   #1008
xrk971 is offline xrk971  United States
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Mini Karlsonator (0.53X) with Dual TC9FD's
Quote:
Originally Posted by a3cervo View Post
^ Hi X!

What is the advantage of the .53x over the .4x sonically / sound-wise? Reason i'm asking is; i have a fairly large desk and can accommodate the size of .53x.

How do these speakers perform when placed near the back wall?

Btw, you've done a very good job sharing here your projects. I appreciate your help.
0.53x has deeper bass in the 50Hz range vs 70Hz for 0.4x. Against a wall is best for deepest bass extension so no problem there - you will like the sound. The 0.53x also has advantage of higher sensitivity and more headroom as the drivers in parallel have 91dB sensitivity at 2.83v. If you have room, go with the bigger one. Good luck.
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Old 30th October 2014, 08:34 PM   #1009
EddieT is offline EddieT  United States
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Quote:
Originally Posted by xrk971 View Post
I have a pair of 0.4x mini Karlsonators with 3FE25's in the kitchen hooked up to a $5 TDA7297 amp as a speaker for iPhones and such . . .
Did you build or purchase the amp? Link?
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Old 30th October 2014, 10:45 PM   #1010
xrk971 is offline xrk971  United States
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Mini Karlsonator (0.53X) with Dual TC9FD's
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Originally Posted by EddieT View Post
Did you build or purchase the amp? Link?
It would cost you $25 in parts to build this thing. A great sounding amp and a bargain. You need a 12v laptop supply.

Online Shop 15W+15W TDA7297 Rev B dual Channel Amplifier Board AC/DC 12V No noise High Power Free shipping|Aliexpress Mobile

It is class AB which may have advantages if you are trying to avoid noise emission for radio signals.

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