Guest David in MA Posted March 6, 2006 Report Share Posted March 6, 2006 Hi all,I just wanted to take a moment and share my experience of recapping my AR-9's.First all, I decided to go with Bennic electrolytic and Carli Mylar caps because it is a good money-saving choice - cost me around $50 for both speakers. Perhaps sometime in the future I will replace them w/ solens or zens but for now I figured this was a good way to go.I didn't replace the two caps in the woofer cross-over. I replaced 7 caps in all. I had to order 9 caps per speaker because I had to pair two 12MFD caps and two 20MFD caps to form 24 and 40 mfd caps. The 4 mfd cap was replaced w/ 3.9 mfd cap. I also replaced the 6 ohm resistor in series w/ 40 mfd cap and 1.37 mh inductor on recommendation by Bret.Of the 7 caps, 5 caps in the upper midrange and high range were done w/ the speaker on its back. For the two caps in the lower midrange, I found it easier when the speaker was standing in its normal vertical position.I didn't bother unsoldering old caps. I cut it off using a wire cutter. I also didn't remove the 80 mfd cap because it seems like it just belong there (lol).Sound experience? I guess it sounds better. Does it blow my mind? I don't know. In my case, one of my upper mid range driver is not performing correctly so I can't tell. I have a new mid range coming this week so I will write more then I get it installed.There you have it. Took me maybe 1-2 hours per speaker. Much easier job than refoaming. Link to comment Share on other sites More sharing options...
Guest Bret Posted March 6, 2006 Report Share Posted March 6, 2006 >I guess it sounds better. Does it blow my mind? I don't know. In my case, one of my upper mid range driver is not performing correctly so I can't tell.<Is it still rattling?Bret Link to comment Share on other sites More sharing options...
Guest David in MA Posted March 6, 2006 Report Share Posted March 6, 2006 >>I guess it sounds better. Does it blow my mind? I don't>know. In my case, one of my upper mid range driver is not>performing correctly so I can't tell.<>>Is it still rattling?>You know, I think it's in the recording. It's beginning of the first track of Kind of blue. It's the only time I can hear the buzz... Link to comment Share on other sites More sharing options...
Guest OldRelayer Posted March 6, 2006 Report Share Posted March 6, 2006 I will try that track and report. Will accomplish two things, I haven't heard it yet on my new speakers.When did capacitors get worth their weight in gold. $50 and you went the cheap route, I guess I am showing my age, I think I remember caps being a dime a dozen. Link to comment Share on other sites More sharing options...
Guest OldRelayer Posted March 6, 2006 Report Share Posted March 6, 2006 I didn't hear a rattle. If your lucky enough to have a reverse on your pre-amp, it might make it easier to find the problem, see if it follows the source. A little easier than changing wires, but that will work as well. Link to comment Share on other sites More sharing options...
Guest David in MA Posted March 6, 2006 Report Share Posted March 6, 2006 >I didn't hear a rattle. If your lucky enough to have a>reverse on your pre-amp, it might make it easier to find the>problem, see if it follows the source. A little easier than>changing wires, but that will work as well.It wasn't a rattle, more like a slight buzz. For some reason, it's not as noticeable. I'm definitely sure it's not the driver. Link to comment Share on other sites More sharing options...
Guest Bret Posted March 7, 2006 Report Share Posted March 7, 2006 >It wasn't a rattle, more like a slight buzz. For some reason, it's not as noticeable. I'm definitely sure it's not the driver.<Could be the source. I've had that happen. Was relieved to find it was the source since that's easily and cheaply replaceable and drivers are not.You said you had a new midrange coming - "new" new or "new to me" new?Bret Link to comment Share on other sites More sharing options...
ar_pro Posted March 7, 2006 Report Share Posted March 7, 2006 Kind Of Blue? The noise is on the recording - it's actually kind of famous. Listen to it on headphones, and you'll hear it clearly, starting at :50 seconds. Link to comment Share on other sites More sharing options...
Guest David in MA Posted March 7, 2006 Report Share Posted March 7, 2006 >Kind Of Blue? The noise is on the recording - it's actually>kind of famous. Listen to it on headphones, and you'll hear it>clearly, starting at :50 seconds.That's what I thought. It's funny that it's kind of famous. I'll try to look it up on the net.Thanks for the information. Link to comment Share on other sites More sharing options...
Guest David in MA Posted March 7, 2006 Report Share Posted March 7, 2006 >>You said you had a new midrange coming - "new" new>or "new to me" new?>I got in contact w/ Larry (vintage_ar on ebay). I spoke to him at length and he seemed very passionate about restoring vintage AR's. He had hi-mid replacement part available and so I ordered from him. He said if I didn't like the sound, I can return it for a full refund, minus the $9 shipping. Link to comment Share on other sites More sharing options...
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