Hi,
Well I feel that I'm almost done with hifi and probably won't be upgrading in the near future.
1999 - I bought an N.E.W. dc 66 amplifier and I struggled with this battery powered amplifier for a number of years. Eventually changing the batteries that cost me $600 to replace but I kept having problems with the recharge circuit. Prior to replacing the batteries I would get about 2 hours of play from them until recharge kicked in (about 8 hours to recharge the batteries). After the batteries were cooked because of a problem with the recharge circuit it sat at the hifi shop for a number of years. Eventually I sent it to a guy in Brisbane and its been there for about 2 years. He was supposed to send it back to me but no luck at this stage.
2005 - I bought a ps audio hca 2 direct from the US. I read many many positive reviews and I only read one that was negative. Guess what the one negative review was spot on the amplifier didn't sound good to my ears at all. I replaced some caps in the signal path and I had all sorts of problems. Sending the amplifier back and from the US and having someone upgrade the amplifier for me cost another $1500au. Anyway this amplifier does work and sounds fairly reasonable in my system but has cost me a ton of money to fix.
2007 - I bought a Son of Ampzilla and this amp has worked flawless for me with no problems.
2009 - the upgraditis bug got me again and reared its head for me and I decided to import the Ampzilla 2000 monoblocks from the US. I bought these new thru a dealer but initially they were configured for US voltage and they swapped the transformers for me and checked that they operated for aussie voltage. Well they didn't work at all and I think I've listened to them for 10 minutes after spending $6000US. In the process the dealer and manufacturer had a falling out and the dealer doesn't offer the products anymore.
I live in Perth Western Australia and a repairer in Melbourne (2000 miles away) promised that he would be able to fix the amps for me. They have been in Melbourne since Mid November and the guy doesn't respond to my emails and his phone is continually on answer machine. I leave messages all the time and when I leave a message I'm always really polite (even though I feel a bit frustrated). I did talk with the repairer about 4 weeks ago and he promised to have them fixed in the next couple of weeks. He did tell me that he was snowed under at the moment.
I am being unfair that I feel a bit disgrunted? Anyway I'm now pondering flying to Melbourne to see if I can collect my amps. Btw I contacted the manufacturer and I have now voided my warranty because a non approved repairer has opened the amps

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Now I will say on a positive note that the only time I've been truely satisfied with an Overseas manufacturer has been Jim Salk. The speakers arrived perfectly and perform very well.
As a consequence of my frustration I have taken up a new hobby and I'm now a comeback trumpet player and eagerly expecting a custom made trumpet from the US. Hopefully there won't be any electrical problems with this instrument

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Regards
Rod