fini Posted September 25, 2005 Share Posted September 25, 2005 Bob Crites' now-famous crossover sniff test. Bob, can you do a write-up geared towards us lay folk? Quote Link to comment Share on other sites More sharing options...
sunnysal Posted September 25, 2005 Share Posted September 25, 2005 I think the caption shoud read... "So that is where I left that!" or "what the hell is THAT doing there?!" tony Quote Link to comment Share on other sites More sharing options...
BEC Posted September 25, 2005 Share Posted September 25, 2005 Really, it is quite simple. If the crossovers are more than 20 years old, I can just pretty much pronounce them all bad with just a sniff. On the ones newer than 20 years old, I still have to use test equipment. By the way, the best ones smell like Arkansas cedar. Bob Crites Quote Link to comment Share on other sites More sharing options...
Deang Posted September 25, 2005 Share Posted September 25, 2005 Well, I think it's obvious we are going to have to admit Bob into the Betty Ford clinic. Quote Link to comment Share on other sites More sharing options...
JulieHeartKlipsch Posted September 25, 2005 Share Posted September 25, 2005 Why would they all go bad in 20 years? No moving parts on there are there??? Quote Link to comment Share on other sites More sharing options...
BEC Posted September 25, 2005 Share Posted September 25, 2005 Julie, The capacitors age and become resistive. Seems that about 20 years is all you can expect out of them before they become resisitve enough to start effecting the sound. That does not mean that they sound bad by that time, just that with new caps, they will sound better. Bob Crites Quote Link to comment Share on other sites More sharing options...
Spkrdctr Posted September 26, 2005 Share Posted September 26, 2005 Like Bob, having tested thousands of caps over the years, I would agree with him EXCEPT that I would change the time frame to 12 years. If your caps are over 12 years old, they should AUTOMATICALLY be sent to Bob for testing and most likely replacment. From Bobs posts and his equipment, I can tell you he does a very good job. No reason not to have Bob do things first class. Bob, can I have my $10 now? [] Quote Link to comment Share on other sites More sharing options...
hwatkins Posted September 26, 2005 Share Posted September 26, 2005 Really, it is quite simple. If the crossovers are more than 20 years old, I can just pretty much pronounce them all bad with just a sniff. On the ones newer than 20 years old, I still have to use test equipment. By the way, the best ones smell like Arkansas cedar. Bob Crites Most of us from Arkansas are very familiar with the technique. As a matter of fact I made beer money when I was a kid by training English Setters to detect the aroma of old caps. The hard part was to teach them to get on point to the specific cap. I was able to get them to back pretty good so folks like Crites could see a bad cap from a distance. Those who have trouble following the above clearly spent too much time growing up in a city...... Quote Link to comment Share on other sites More sharing options...
fini Posted September 26, 2005 Author Share Posted September 26, 2005 I use a similar technique to tell when it's time to change the Fruit of the Looms. It is usually LONG before 20 or even 12 years. Quote Link to comment Share on other sites More sharing options...
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