2. misc-audio
  3. 165454-6300

VIBEX noise audible noise

I ' m using 3 VIBEX powerblocks , the normal version , 1 for the preamp , and two for the L & R poweramps .
I did a measurement with an ENTECH wideband powerline noise analyzer ( from Monster cable ) , preamp and 1 poweramp blocks dead quiet , but 1 for the other poweramp gives some noise , absolute less than trying the meter at the powersourse in the kitchen . I 'm using 3 dedicated powerlines from the house power to the audio group , BTW I 'm living in the Netherlands ( Europe ) As seen in other discussions , from VIBEX Spain NO answer .Could something be wrong with this powerblock ?
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hansk46 OP
122 posts
 
Asked VIBEX.ES , the factory , hope I get an answer , but already know
no serviceable parts inside , all 3 are the older models.
hansk46's avatar
hansk46 OP
122 posts
 
Today I got an answer of VIBEX , I wrote them about the problem , I could send the unit to Spain to have inspect it .In the meantime I got a Russ 
Andrews Silencer ( parallel filter ) that works great , unit dead quiet, told this result , and within an hour I got this answer :That's great news . I'm pleased to hear that Russ harmonic filter works fine , he is a friend of mine.There are no active or passive components either in the Vibex power block . Noise reduction is achieved by using mechanical energy absorption techniques and screening elastomers.OK great customer service .But only one question for me , what causes the noise , elastomers getting hard ?
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