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#157428 2012-01-05 10:38
Joined: Jan 2003
Posts: 53
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I have owned my G68ADV for probably 5-6 years with absolutely zero issues. Recently, upon switching inputs, there was a loud noise which I can best describe as feedback coming from the speakers, lasting only a half second. The other night, it became much worse, having an almost pulsing character and probably close to 100dB in intensity and lasting until I muted the processor. It seems like a power issue and I've read that the power supplies don't last forever. Is there anything else that I can rule out before sending it away? Also, I remember reading about someone in the states who was doing repairs and had a much better turn around time than the factory.

Any help or insight would be appreciated.
Rudy


G68ADV, DSP5500's, DSP5500HC, DSP5000's, Sony Ruby, DVDO, VP-30
Joined: May 2008
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President of the Imperial Galactic Government
President of the Imperial Galactic Government
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Hi,

It sounds like it needs service, have a talk with Marc Koval ex. Meridian.

Regards,
Carl


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Joined: Aug 2009
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My G68ADV did almost the exact same thing about a year ago. The broadband noise bursts blew one of my speakers. frown

My dealer sent the G68 to Meridian US, and they replaced the power supply. The original power supply was from Universal Microelectronics. The replacement was from XP Power. The XP power supply was a significant step down in sound quality, IMO. And the repair from Meridian was expensive. Very.

I ended up removing the XP power supply and hired a modder to create a custom power supply, which I am very happy with. There is a recent custom power supply thread you may want to read before sending your unit back to Meridian.

Bryon

Last edited by Carl; 2012-01-07 05:39. Reason: Long URL converted to a tag

iMac -> Sonos -> Empirical Audio reclocker -> G68 (modded) -> Pass Labs XA30.5 amp -> Focal 1027be speakers + JL Audio F113 sub. Pioneer Elite PRO 151FD 60" display.

G68 mods... Custom power supply, Audiocom Superclock 4, Rubycon capacitors, WBT Nextgen connectors, ultra low noise op amps, analog output buffer, DSPC c00044, Revelation One filter.

Bryon #157827 2012-01-09 08:58
Joined: Jan 2003
Posts: 53
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Byron, thanks for the reply. I have sent the unit to Marc Koval in Atlanta. He's been recommended by several folks on this site. I will not be able to evaluate speaker damage until the processor is returned. Being DSP's, hopefully internal protection circuits protected them. I'll let you know how everything turned out when I get the unit back.

Rudy


G68ADV, DSP5500's, DSP5500HC, DSP5000's, Sony Ruby, DVDO, VP-30
Joined: Aug 2009
Posts: 32
Harmless
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Joined: Aug 2009
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You are welcome, Rudy. If the power supply is in fact dead, what do you plan to replace it with?



iMac -> Sonos -> Empirical Audio reclocker -> G68 (modded) -> Pass Labs XA30.5 amp -> Focal 1027be speakers + JL Audio F113 sub. Pioneer Elite PRO 151FD 60" display.

G68 mods... Custom power supply, Audiocom Superclock 4, Rubycon capacitors, WBT Nextgen connectors, ultra low noise op amps, analog output buffer, DSPC c00044, Revelation One filter.

Bryon #158284 2012-01-13 17:30
Joined: Jan 2003
Posts: 53
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Bryon, the processor's been sent to Marc Koval. I will wait to hear what his diagnosis is, then I'm sure he'll make a recommendation or two. I'll let you know what we decide.


G68ADV, DSP5500's, DSP5500HC, DSP5000's, Sony Ruby, DVDO, VP-30

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