maxdblsbb Posted April 7, 2008 Share Posted April 7, 2008 So, armed with the advice I got from my previous post on a tweet upgrade for my scalas I took a look at the AA networks and saw this... and this.... The Sprague cap is 14MF and the other two are 2MF each. I'm guessing that this network as been modified at some point in its life. So now this begs the question: Do I really need to change these caps out? I know that the klipsch spec is for 13MF not 14. Will this make a big difference? Should I just replace that cap to the klipsch spec? Any input is greatly appreciated. Quote Link to comment Share on other sites More sharing options...
Daddy Dee Posted April 7, 2008 Share Posted April 7, 2008 Right. The caps are not stock. Other folks will chime in with more help on the fitness of the current configuration. Quote Link to comment Share on other sites More sharing options...
BEC Posted April 7, 2008 Share Posted April 7, 2008 I would say those are stock. I have rebuilt some just like them. Some of the worst caps I have ever found in a crossover. Bob Crites Quote Link to comment Share on other sites More sharing options...
djk Posted April 8, 2008 Share Posted April 8, 2008 Those look like early 70s vintage after they ran out of the surplus PIO and before they had their new PIO caps made. Quote Link to comment Share on other sites More sharing options...
Don Richard Posted April 8, 2008 Share Posted April 8, 2008 That looks exactly like my AA xovers that I bought from Klipsch in the early 70's to replace the original type A network. Replace the caps at the least. Don Quote Link to comment Share on other sites More sharing options...
PrestonTom Posted April 8, 2008 Share Posted April 8, 2008 You will probably get a great deal of advice about choice of caps etc. However, let me make a suggestion that may seem silly. Remove the screw that secures the inductor on the left (with the piece of wood on top). Depending on what it is made from, it might actually change the inductor's value. Hey it is cheap advice. -Tom Quote Link to comment Share on other sites More sharing options...
BEC Posted April 8, 2008 Share Posted April 8, 2008 Tom is right on the inductor screw. At least 50 percent of the time, Klipsch used the wrong screw in the AA crossovers 245 uH inductor. Check it with a magnet. If it is attracted to the magnet, replace it with the proper screw. That would be a brass or non-magnetic stainless steel screw. The one in the picture above looks like steel and therefore not the right one. A steel screw changes the value of the 245 uH inductor to about 350 uH. Bob Crites Quote Link to comment Share on other sites More sharing options...
maxdblsbb Posted April 8, 2008 Author Share Posted April 8, 2008 Some of the worst caps I have ever found in a crossover. YIKES! Well...I guess that does it. Now all I need to do is find a stainless or brass screw and some new caps! I don't want to spend a heck of a lot of money for the caps. Can anyone recommend a relatively cheap option and where to buy them? Oh, and thanks for all the input so far! Quote Link to comment Share on other sites More sharing options...
BEC Posted April 8, 2008 Share Posted April 8, 2008 Some of the worst caps I have ever found in a crossover. YIKES! Well...I guess that does it. Now all I need to do is find a stainless or brass screw and some new caps! I don't want to spend a heck of a lot of money for the caps. Can anyone recommend a relatively cheap option and where to buy them? Oh, and thanks for all the input so far! I could make you up a kit of the caps, mounting blocks for the caps and correct screws if you are interested in that. Send me an email. Bob Crites bobcrites@mac.com Quote Link to comment Share on other sites More sharing options...
Daddy Dee Posted April 9, 2008 Share Posted April 9, 2008 wow. I had no idea that this would be a factory crossover. Quote Link to comment Share on other sites More sharing options...
tigerwoodKhorns Posted April 9, 2008 Share Posted April 9, 2008 wow. I had no idea that this would be a factory crossover. Didn't Klipsch just use whatever they could get a good deal on in bulk? Quote Link to comment Share on other sites More sharing options...
Klipsch Employees Trey Cannon Posted April 9, 2008 Klipsch Employees Share Posted April 9, 2008 It looks to me like it has been repaired. the yellow caps are from the pro networks, like the kp-250 and others. Maybe repaired in the factory. The 14uF cap should be a 13uF cap, but that cap is a 10% part. Thus, 14uF is with in spec, if it is a 14uF. Quote Link to comment Share on other sites More sharing options...
BEC Posted April 9, 2008 Share Posted April 9, 2008 Pretty sure this one is all original. Well, maybe some of the dust is more recent. There are lots of AAs like this one out there. Bob Quote Link to comment Share on other sites More sharing options...
BEC Posted April 9, 2008 Share Posted April 9, 2008 I think some of these Sprague 14 uF caps must have just been marked wrong. You don't usually see them go high on capacitance. Bob Crites Quote Link to comment Share on other sites More sharing options...
BEC Posted April 9, 2008 Share Posted April 9, 2008 Then there are the little flat yellow caps trying to set records for high ESR. Bob Quote Link to comment Share on other sites More sharing options...
colterphoto1 Posted April 14, 2008 Share Posted April 14, 2008 Yup, looks real. Needs help though. You've come to the right place. Quote Link to comment Share on other sites More sharing options...
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