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Relays, Capacitors, and Blown Speakers

OK, so I just picked up a used NAD 2400PE, a 100W circa 1990, because I love the sound of my old 7225PE receiver from the same era. After doing a bit of research on this particular amp, I see that it and its 2000-series brethren were prone to speaker relays going bad. In addition, the amp and its original caps are 20 years old. My question is, when a speaker relay, output, or large cap malfunctions, is the speaker automatically in mortal danger from DC or something else? This particular model has 40,000uF in its supply, BTW. Any input would be much appreciated and help allay my fear of using the amp w/good speakers.
bojack

Showing 1 response by ths364

ths364
181 posts
 
I have a 7140 that is exhibiting relay problems-just takes a really long time to turn on the speakers.
Had a start-up pulse take out the tweeters on one of my DCM's right after getting an amp out of the shop and spending $300 for all new caps and re-bias etc. However-this particular amp was not equipped with a relay at all.(Pioneer SX-2500)
I was less than pleased.
I don't think this type of relay CAN stay in a "latched-on" status; In my limited understanding it is an electro-magnetic switch that requires voltage to engage contact.
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