RM705 Subwoofer loud metallic clang, pop, smoke, and electrical burning smell
kirkilj
Posts: 1
I've had a Polk 5.1 speaker system for several years. A couple days ago when the receiver was off, the sub made a loud, horrendous metallic clanging sound out of nowhere. When my fiance entered the living room, she noticed an electrical burning smell and a smokey haze in the room. The sub was in Auto power mode with volume and sensitivity both set midway.
Is there anything that could've triggered such a violent event? We've added some wireless 5.8GHz satellite speaker adapters and WiFi holiday LED lighting recently, but I'm doubtful that they would make a wired sub lose its mind.
I'd also like to prevent the same thing happening to its replacement, whatever I decide to get.
Is there anything that could've triggered such a violent event? We've added some wireless 5.8GHz satellite speaker adapters and WiFi holiday LED lighting recently, but I'm doubtful that they would make a wired sub lose its mind.
I'd also like to prevent the same thing happening to its replacement, whatever I decide to get.
Answers
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The plate amp failed as subwoofer plate amps from all manufacturers can do. There's nothing you can do to prevent it other than never using the sub.Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk -
Those RM705 systems have been around for about a decade. My guess is it just reached the end of its electronic life. One piece of advice is to run whatever the replacement is on a good surge protector and leave the subwoofer powered on all the time. Auto on/off mode saves electricity but it can also shorten the lifespan of the internal amp.
