probably too much DC into speaker. 2...3V enough to fry.
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Speakers are 10 years or so old a 2 way puts a lot of stress on midwoofer toss in modern adhesives foams etc many are failing and that maybe a issue I have not noticed any longevity in modern design and it seems that many modern loudspeakers etc are already failing. I have drivers and loudspeakers from 1930s up. In my experience modern designs are not holding up as well and I have had many modern transducers fail while the old ones just keep working. And sad thing about many modern drivers is limited repair-ability most designed to be binned if any issues.
Thank you for the comment, however, as stated I do not play music loud since I live in an apt near neighbors. There are occasions where loud noises do occur. For example, if watching a movie and there is an explosion there is definitely an increase in volume noise and there is a lot of sound distortion. I have an Anthem MRX700 receiver with 120 watts per 7 channels and 8 ohms. The SF Monitor M are 40 -150 watts and 4 ohms. Shouldn’t this receiver be powerful enough for these speakers? If not then is there a booster of sorts (pre amp or pre pro) available to boost the power of the receiver?
My SF Auditor M mid woofer starts to have the rubber surround tear/crack, though its still working, i wonder if there's any parts i can use for the surround foam/rubber replacement?
Anyone know the actual manufacturer/part number of the Auditor M tweeter and driver? It'll be helpful if can share, I can't seem to locate and trust me I tried to google for quite some times, but no part number no any good picture to confirm such for Auditor M.
Appreciate any's feedback on this