Ive had so many duds I have almost lost track!
Early 80s: JVC turntable, top of the line, with servo controlled arm. randomly would just grind to a stop. JVC had it for 11 months and never fixed it, they said they did but one hour after getting it home it did it again. It went to the tip
Early 80s: Nakamichi LX5 Cassette recorder, very expensive 3 head unit at the time. Kept getting audio clicks in the left channel when recording. Nakamichi tried to fix it 3 times but ended up giving up.
Late 80s: Audio Pro Powered subwoofer, kept blowing fuses, then finally it blew the output stage on the amp
Late 80s: Yamaha CD player, supposably professional model. Kept killing the laser, lucky it had a five year warranty as it went thru seven laser assemblies. It went to the tip two months out of warranty
Late 90s: A string of dodgy sony products.
Sony Hifi Video: display failed 1 day before warranty expired. Sony had a service bullitin on this. Local repairer fixed it and billed sony. Then two years later the entire loading mechanism destroyed itself in a crunch and grindof plastic and metal, and the tape inserted.
Sony 5.1 channel home theatre amp. Just out of warranty it wouldnt obey commands, ie u would select dvd dolby pro or 5.1 and it would o/p the tuner in stereo etc. Then slowly one by one an output stage would fail, only the left front and rear right works now, its in the shed as I replaced it with a yammy 2700
sony dvd player. second series, cost a fortune, ie $799 and beautifully made ando I assumed the bugs would be gone. WRONG! Would skip on the slightest dust/smudge/hair/scratch, it would even skip on new disks straight out the case. Had endless service alignments, it ever fixed it. And it wouldnt play burnt cds, but it would play burnt dvds, weird! currently keeps the cats bum warm.
And dont get me started on fisher paekal: dud washing machine, dud dish washer, dud drier, but the worst was the westinghouse fridge, the door fell off a month out of warranty, and couldnt be economically replaced as the hinges were part of the outer case. Electrolux (the parent company) did the right thing and replaced it with a new one for a fee of $207 (the fridge was worth $1600 to replace)
last year: wintal sd stb. its dead, power supply seems to be o/p all the correct voltages but nothing happens, only got 14 months out of it
But on a side note:
I have had some incredibly good runs out of some gear: ie yamaha class A a1000 amp, bought in 1984 for just under a $1000 (it was their flagship at the time) Its been flogged and flogged and even had a jug of beer split on it at a piss up in the N.T. Its still going strong!