Question on popping noise

vulcan
vulcan Posts: 91
edited July 2012 in 2 Channel Audio
Want to post a question about something been bothering me and hope you can help.
After I turn off my power amp(adcom gfa 555 II), in about 6-8 sec I hear a series of
soft pops, three to be exact. Is this normal or some problem with this amp?
On a side note would like to mention I have a set of Polk SDA 1C, I drove from Atlanta
to Chicago on a icy weekend to pick up, they were worth it. Buying the parts for future upgrades
now, just bought some of "Gimpods" new crossover boards. Hope to be able to order some of Larry's rings next week..
Great forum and great group of people here! thanks in advance. Craig
Polk Audio SDA 1C, Klipsch Legend KLF 20, Klipsch Chorus II
Post edited by vulcan on
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Comments

  • PreCd
    PreCd Posts: 786
    edited July 2012
    That is normal. Your filter capacitors are discharging. My GFA-555 MKI does the same thing.

    Nice looking system.
    SDA2BTL
    Marantz CD5004
    Adcom GFA-545
    Bottlehead Quickie Tube Preamp
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  • evhudsons
    evhudsons Posts: 1,175
    edited July 2012
    Welcome to Club Polk, and nice speakers!

    I have the adcom 555 and it makes a soft puffy popping sound when I change sources on the remote, and when I fire it up or off. I don't know if there is a fix or not. I read online there is, but I have no idea what it is or if it is worth even messing with.
    Polk Audio SDA CRS+ crossover 4.1TL by Trey/VR3 (Rings and custom stand by Larry)-Polk Audio SDA SRS2 crossovers by Trey/VR3Parasound HCA1500aYamaha rxa-3070 with musicast-Celestion SL6S presence,- sl9 surround backNHTsuper1's surroundMagnepan SMGParasound 1500pre- Sofia "Baby" tube amp - Monitor Audio Silver RX2 Marantz 2230/B&Kst140Technics 1200mk2 Gamertag: IslandBerserker I am but a infinitesimally small point meeting the line of infinity in the SDA universe
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  • leftwinger57
    leftwinger57 Posts: 2,917
    edited July 2012
    Mine does not make a popping sound but when I shut the rocker switch to off on occassion I hear what sounds like the amp is spooling down,then off,I don't think this is a problem it's barely noticeable.Turning on power is immediate .I've also noticed that my 555 does not get hot or even warm at all and that's after all day running.
    2chl- Adcom GFA- 555-Onkyo P-3150v pre/amp- JVC-QL-A200 tt- Denon 1940 ci cdp- Adcom GFS-6 -Modded '87 SDA 2Bs - Dynamat Ext.- BH-5- X-Overs VR-3, RDO-194 tweeters, Larry's Rings, Speakon/Neutrik I/C- Cherry stain tops Advent Maestros,Ohm model E

    H/T- Toshiba au40" flat- Yamaha RX- V665 avr- YSD-11 Dock- I-Pod- Klipsch #400HD Speaker set-

    Bdrm- Nikko 6065 receiver- JBL -G-200s--Pioneer 305 headphones--Sony CE375-5 disc
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