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Please help me ID these Falcon Acoustics crossovers

 
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brucegseidner
Junior Contributor 10+


Joined: 05 Jul 2009
Posts: 12

PostPosted: Sat Jan 17, 2015 5:21 pm    Post subject: Please help me ID these Falcon Acoustics crossovers Reply with quote

I am unpacking gear that has been in storage. This is a 70's and 80's time capsule. I have a bunch of KEF drivers that are in very good shape as well as a set of PCB-9 and PCB-11 Falcon Acoustics crossovers. I was delighted to find the Falcon Acoustics website up and running. But my PCB-11 crossover is not listed. It lists them up to PCB-10 that I could see.

I purchased both the PCB-9 and PCB-11 in 1984. I know the PCB-9 went to my B-139's. I don't know the crossover points or slopes of these puppies.

I don't remember what went on the other side of the PCB-11. I am pretty sure it was a T-52 up top but I don't recall if it was a B-200 or a B-110 or something else.

I would also appreciate knowing the recommended volumes of the spec'd cabinets and the stuffing recommendations (lbs/volume). Actually, I don't recall if it is a vented or a sealed box design. Regardless, I have plenty of room in this new space to build these up again.

Oh, and would anyone change out the blue ALCAP capacitors with something manufactured in this century or change to film? They were used 1984-1990 and have been in a box since then. My sense is they should be fine, but not being an engineer or terribly current, there might be a modification that would be recommended. Now is the time to tinker.

I used to use a very big Hafler to fire these up. Nowadays I have flea-weight tube amps and high efficiency speakers. So I just pulled the trigger on a solid state 100W/channel amp in anticipation of getting these drivers singing again.


Should be fun.

Thank you in advance.
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SaSi
Senior Contributor 200+


Joined: 24 Aug 2008
Posts: 223

PostPosted: Sat Jan 17, 2015 6:43 pm    Post subject: Reply with quote

I think you should contact Falcon Acoustics with the model numbers and a picture of the crossovers. Malcom Jones, the person who started Falcon is still with them so there should be no problem identifying them for you and perhaps be able to send you relevant documentation for them.
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brucegseidner
Junior Contributor 10+


Joined: 05 Jul 2009
Posts: 12

PostPosted: Sat Jan 17, 2015 10:11 pm    Post subject: Reply with quote

That is great news. I recall speaking to him when I purchased these 30 years ago. I just sent an email.

There is also a lot of depth on the bench here and I would be surprised if others had not used this crossover. Thanks.
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Gossy
Introductory Contributor


Joined: 07 Jan 2015
Posts: 8

PostPosted: Sun Jan 25, 2015 8:12 pm    Post subject: Reply with quote

Hi - not being an engineer either, but having a nephew who is those caps might still be in good working order, or not - only way to know is to test em out ^^ There are ways to gently get a cap back up to spec I've read- some device that lets you feed them current slowly and more and more upto their spec.. I forget the name. If they áre in good order, then they are very good caps indeed - no need to try and improve.
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