Kef 105.3 assembling

sandor626 · 10th October 2005, 11:58 PM

Dear friends,
I have made a pie, I have gotten off completely the 105.3, doesn't remember anymore now the connections. I thought it was easy to reassemble her, instead I don't understand if the woofers are in phase, if the mid low they go to out phase.
To ear I have climbed on the woofers between them in out phase, the mid low in comparison to the woofers in out phase, so it seems to play well.
Him UNI-Q besides that he has not been gotten off, he has always played with a strong exaltation toward the 3 KHzes with very nasal sound. Now from when I have reversed the phase on the TW it seems to play very well and linear. do I ask you besides, is it possible that in this crossover they are only there condensers electrolytes not polarized? they are not too much cheap? what does it mean LL initials on the condensers from 7 mFs used for UNI-Q? (they seem normal electrolytes not polarized). Help me, SANDOR626 from Italy

AndrewJ · 11th October 2005, 05:01 PM

The wires to each of the drivers are colour coded. At KEf we always used a consistent code to signify which colours were for tweeter, midrange etc, and also which were positive and negative.
Unfortunately I no longer remember what is what.
Let me know what colours you have and I may possibly remember and be able to help.
Also, the xover is built on a printed circuit board that is attached to the rear panel. The circuit board should be screen printed with the details of the connections.
If you remove the panel you should have the info you need, but this time ta.ke pictures as you dismantle, just in case :-).
Also, I can confirm that all the capacitors are non-polar types.

Andrew

sandor626 · 29th September 2007, 02:46 PM

up

sandor626 · 30th September 2007, 06:50 PM

hello,
is not there anybody that can send photos of the wiring?

Inductor · 1st October 2007, 11:49 PM

Look here

sandor626 · 2nd October 2007, 12:15 PM

Hello,
AndrewJ have posted :

"The KEF wiring scheme used the following colours:

Blue: HF+
Brown HF-
Yellow MF-
Green MF+ ".

But Clem_o have posted another code , where

the blue color is negative.

I don't know whom to believe to !

Thanks

Inductor · 2nd October 2007, 06:54 PM

The previous colour code that I posted is from 105.2. I am not sure what colour code was used, in what model/year. So better check one by one.

sandor626 · 3rd October 2007, 06:56 AM

hello,
I don't succeed in files attaching , perhaps because I don't have an enough number of posts.
otherwise I would have sent the scheme of Clem_o
Sandro

sandor626 · 3rd October 2007, 06:58 AM

I have succeeded there

Inductor · 3rd October 2007, 10:00 AM

The colour codes are not the same.
You have a 36 component crossover?! What are you listening to, Kraftwerk?...

10th October 2005, 11:58 PM	#1
sandor626 diyAudio Member Join Date: Oct 2005	Kef 105.3 assembling Dear friends, I have made a pie, I have gotten off completely the 105.3, doesn't remember anymore now the connections. I thought it was easy to reassemble her, instead I don't understand if the woofers are in phase, if the mid low they go to out phase. To ear I have climbed on the woofers between them in out phase, the mid low in comparison to the woofers in out phase, so it seems to play well. Him UNI-Q besides that he has not been gotten off, he has always played with a strong exaltation toward the 3 KHzes with very nasal sound. Now from when I have reversed the phase on the TW it seems to play very well and linear. do I ask you besides, is it possible that in this crossover they are only there condensers electrolytes not polarized? they are not too much cheap? what does it mean LL initials on the condensers from 7 mFs used for UNI-Q? (they seem normal electrolytes not polarized). Help me, SANDOR626 from Italy

2nd October 2007, 06:54 PM	#7
Inductor diyAudio Member Join Date: Feb 2006 Location: Cascais	The previous colour code that I posted is from 105.2. I am not sure what colour code was used, in what model/year. So better check one by one. __________________ What the Hell is this crap?! It's not crap, it's muzak.

3rd October 2007, 10:00 AM	#10
Inductor diyAudio Member Join Date: Feb 2006 Location: Cascais	The colour codes are not the same. You have a 36 component crossover?! What are you listening to, Kraftwerk?... __________________ What the Hell is this crap?! It's not crap, it's muzak.

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11th October 2005, 05:01 PM	#2
AndrewJ diyAudio Member Join Date: Sep 2001	The wires to each of the drivers are colour coded. At KEf we always used a consistent code to signify which colours were for tweeter, midrange etc, and also which were positive and negative. Unfortunately I no longer remember what is what. Let me know what colours you have and I may possibly remember and be able to help. Also, the xover is built on a printed circuit board that is attached to the rear panel. The circuit board should be screen printed with the details of the connections. If you remove the panel you should have the info you need, but this time ta.ke pictures as you dismantle, just in case :-). Also, I can confirm that all the capacitors are non-polar types. Andrew

29th September 2007, 02:46 PM	#3
sandor626 diyAudio Member Join Date: Oct 2005	up

30th September 2007, 06:50 PM	#4
sandor626 diyAudio Member Join Date: Oct 2005	hello, is not there anybody that can send photos of the wiring?

2nd October 2007, 12:15 PM	#6
sandor626 diyAudio Member Join Date: Oct 2005	Hello, AndrewJ have posted : "The KEF wiring scheme used the following colours: Blue: HF+ Brown HF- Yellow MF- Green MF+ ". But Clem_o have posted another code , where the blue color is negative. I don't know whom to believe to ! Thanks

3rd October 2007, 06:58 AM	#9
sandor626 diyAudio Member Join Date: Oct 2005	I have succeeded there

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