Need help determining K-61-K driver polarity

[Serge_S]

Here is a thread on the corrected Forte 2 network diagram. It seems the polarity is NOT reversed on the midhorn.

 

Forte-II corrected crossover diagram

 

I think I got it.  Ordinarily,  the polarity reversal would be taken care of within the network and “+” at the board would still go to “+” of the driver, even if the actual polarity is reversed (is this assumption correct?).  My Forte II’s are from 1990 and still have boards marked “Forte” and show reversed mids and highs clearly marked at the board’s terminals.  According to schematics, Forte’s have only mids reversed(within the network) and highs not reversed and I assume show pluses at the board going to pluses of the drivers for all drivers(would be great if anyone could verify this).  The corrected Forte II diagram above shows the highs reversed and mids not reversed.  When re-using the old Forte’s board, Klipsch could only take care of the reversal either at the board’s terminals or at drivers terminals, but not within the network itself.  My tweeters do have terminals clearly marked and pos of the driver is connected to neg marking at the board.  All this leads me to believe that my mid’s negative at the board(again clearly marked) is connected to positive of the midrange driver(which for some reason is marked with random character “R”).  Does this make sense?

[wvu80]

 

Here is a thread on the corrected Forte 2 network diagram. It seems the polarity is NOT reversed on the midhorn.

 

Forte-II corrected crossover diagram

 

 Does this make sense?

 

 

I'm glad I run a two-way. 

Edited November 7, 2014 by wvu80

[mark1101]

 

Here is a thread on the corrected Forte 2 network diagram. It seems the polarity is NOT reversed on the midhorn.

 

Forte-II corrected crossover diagram

 

I think I got it.  Ordinarily,  the polarity reversal would be taken care of within the network and “+” at the board would still go to “+” of the driver, even if the actual polarity is reversed (is this assumption correct?).  My Forte II’s are from 1990 and still have boards marked “Forte” and show reversed mids and highs clearly marked at the board’s terminals.  According to schematics, Forte’s have only mids reversed(within the network) and highs not reversed and I assume show pluses at the board going to pluses of the drivers for all drivers(would be great if anyone could verify this).  The corrected Forte II diagram above shows the highs reversed and mids not reversed.  When re-using the old Forte’s board, Klipsch could only take care of the reversal either at the board’s terminals or at drivers terminals, but not within the network itself.  My tweeters do have terminals clearly marked and pos of the driver is connected to neg marking at the board.  All this leads me to believe that my mid’s negative at the board(again clearly marked) is connected to positive of the midrange driver(which for some reason is marked with random character “R”).  Does this make sense?

 

Yes..........this is what I was suggesting.     Something else...........I am also suggesting that the white mark is not an "R" at all.  It's nothing more than a squiggle to mark the positive terminal of the driver.  I'm guessing.  I have drivers with marks on the positive termiansl that just look like squiggles.

 

Klipsch also marked the speaker wire terminals on older models.  I have a pair of 1973 vertical conrwalls and the speaker terminals have red squiggles on them to mark the positives.

[Serge_S]

 

 

Here is a thread on the corrected Forte 2 network diagram. It seems the polarity is NOT reversed on the midhorn.

 

Forte-II corrected crossover diagram

 

I think I got it.  Ordinarily,  the polarity reversal would be taken care of within the network and “+” at the board would still go to “+” of the driver, even if the actual polarity is reversed (is this assumption correct?).  My Forte II’s are from 1990 and still have boards marked “Forte” and show reversed mids and highs clearly marked at the board’s terminals.  According to schematics, Forte’s have only mids reversed(within the network) and highs not reversed and I assume show pluses at the board going to pluses of the drivers for all drivers(would be great if anyone could verify this).  The corrected Forte II diagram above shows the highs reversed and mids not reversed.  When re-using the old Forte’s board, Klipsch could only take care of the reversal either at the board’s terminals or at drivers terminals, but not within the network itself.  My tweeters do have terminals clearly marked and pos of the driver is connected to neg marking at the board.  All this leads me to believe that my mid’s negative at the board(again clearly marked) is connected to positive of the midrange driver(which for some reason is marked with random character “R”).  Does this make sense?

 

Yes..........this is what I was suggesting.     Something else...........I am also suggesting that the white mark is not an "R" at all.  It's nothing more than a squiggle to mark the positive terminal of the driver.  I'm guessing.  I have drivers with marks on the positive termiansl that just look like squiggles.

 

Klipsch also marked the speaker wire terminals on older models.  I have a pair of 1973 vertical conrwalls and the speaker terminals have red squiggles on them to mark the positives.

 

 

Mark,  you were right.  Reversing polarity at the drivers didn't make sense.  What threw me off originally is that both highs and mids on mine are reversed at the board which didn't correspond to the Forte II schematics.

[WMcD]

At this point I don't have anything to add.

 

I'm a little surprised about the polarity reversal on the board.

 

WMcD

[Serge_S]

At this point I don't have anything to add.

 

I'm a little surprised about the polarity reversal on the board.

 

WMcD

 

I think this was due to Klipsch re-using the Forte boards for early Forte II's.  No other way for them to adhere to the schematics, but to reverse the highs and the mids.  This all is just my guess though.