I delivered my son back to my ex-wife last Sunday after having him for the week, and we had a bit of “situation” develop before I left, involving my 16 - soon to be 17- year old daughter who is an aspiring bedroom DJ and some audio equipment I had given her and some she had purloined from my house on the sly.
My daughter loves techno and I gave her a Denon DRA-275R receiver and some inexpensive, but passable Polks. She loves to play them at max volume and she blew out the Polks after few months, but I figured that it was on one time mistake and replaced the woofers, and told her to keep the volume down. She promptly blew them again. I figured the Polks were of inferior power handling ability and replaced them with a somewhat better pair of bookself sized Wharfdale Black Diamonds. I refused to let her have my more expensive Infinitys because they were very nice and I was concerned she would not take care of them.
Before I left my ex’s house she asked me to look at her receiver as it seemed to be dead. I offered to go up to her room to see it, but she said she would get it and brought it down in the twinkling of an eye. The receiver was simply DOA and kept popping one of s pair of 4 Amp 125 V internal fuses whe powered up. I asked what the heck happened, and the waterworks started. Crying, she brought down her blown pair of Black Diamonds, and then started howling louder and brought down the forbidden pair of Infinitys (blown as well) she had snuck out of my house when I gave her the key to do some research using my net broadband connection a few weeks ago.
I now have one dead little Denon receiver
A pair of blown Infinities - The woofers are simply shredded but
the tweeters are fine.
A pair of Blown Black Diamonds also with shredded woofers
I think the problem is that she has this (to me) fairly complex DJ club mixer she bought with her own money, and uses it to control input from her pair of Technics 1200 turntables. I’m not sure she really knows how to use this thing, and I suspect something she did with the mixer output fried the amp, which in turn fried the speakers, once then again. I don’t know where to begin looking in this chain of audio crimes and stupidity for the source of the problem. It looks like the receiver will be trashed as I do have the electrical expertise to fix it, and it’s not expensive enough to warrant a probable 100+ repair of it's innards when I (she) can get a comparable new unit for around 150. - $ 200. or so.
What the hell happened to these poor speakers, and how can I tell her to prevent this from happening in the future, as any future audio eqipment will be on her dime at this point.