Originally Posted by Archaea
d_c multiple clones failed
HuskerOmaha multiple clones failed (or same one failed multiple times. I can’t remember)
Gorilla83 clone failed
popalock clone failed
lukeamdman clone failed
These guys arent no name novices on the forum. 100% failure rate among these guys
popalock was pushing 32 18's with 1 clone well into VPL/CPL on 20a breaker that was undervolting. So of course the amp will be in trouble.
I've seen Luke's videos of his SPL levels with the SPL-LAB meter I recommended to him, and him levitating his ceiling with the bass, so I'm sure he-too was pushing those clones VERY HARD.
Probably the same for all the others.
The clones are intended for touring Chinese rock concerts or whatever, not sinewave car-basshead bass.
Live music has at least a 10db crest factor and doesn't generally go below 40hz.
I'm not making excuses for Sanway, nor do I own stocks in that company. But I know an over-stressed amp when I see one.
I've broken reputably named jackhammers by trying to crack 2ft thick military-grader reinforced concrete slabs by running them for 8 hours continuously in direct sunlight. Anything is breakable if you red-line it to death.
Generally it has been my experience that if an amplifiers can survive its first exposure to -3db output, then generally it will last many many years (if NOT abused thermally or with sinewaves, test tones or basshead content). *
Otherwise I consider the product Factory-Defective/DOA.
I always test each amp as soon as I get it, for exactly that reason.
*That is asking too much from us bassheads.
All that said, I've done some pretty stupid things to my clones. Like clipped it with continuous sinewaves, 2-ohms 1-ch driven, car-basshead music, 1-5hz signals... as per my various YT vids over the years (that are still uploaded/viewable.)
All my clones are (somehow) still alive.
To be fair though my subpanel is quad-2awg, and only 3ft away from my rack, and thus it never drops below 115v RMS; in fact it often stays at exactly 120v even when bassing hard with an array of amps.
Maybe that makes all the difference...
I no longer stress any of my amps out now that I'm near 32 subs and 100kW, most of the time they are just idle at 0-10% power.
Like this video for-example: I almost instantly blew up all of my LMS-18's (all at once) @ 2:54 with this song, and that's still only 1-10% power (-20db below
clipping). The fp20k's really push out the power when asked.
The rest of the song is like a 50-100hz VC-heating sinewave
It doesn't take long for all the excursion to be used up. Bass-Head music is Best-Korea!
Those amps can output more power than the LMS-18's can handle, and those aren't weak drivers... 80mm's and 2kW RMS etc.
Maybe I just need to TRY harder
to blow something up...
Maybe that's what I'm doing wrong...