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Modular Amps
Egnater / Randall Modular Amps
M4 has loud pop changing channels (tube brand specific)
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<blockquote data-quote="mfred" data-source="post: 85134" data-attributes="member: 1388"><p>I have a Rocktron VP-4 single channel preamp that was upgraded by Egnater. It's now the same as a single channel Egnater M4. I've been doing a bunch of tube swapping lately and noticed something very strange. Whenever I change out the upper chasis tube on the M4 to something other than a Sovtek, Ruby, or Groove Tube R, I get a horendous pop when changing channels. I absoluely love the tone I get from the new Genelex Gold Lion 12AX7 in this position but the pop drives me crazy. Has anyone else come across this? Tungsols and JJ's in the upper position also cause this pop. Is there anything I can do to the M4 so that I can run the Genelex tubes in it. Anybody?</p></blockquote><p></p>
[QUOTE="mfred, post: 85134, member: 1388"] I have a Rocktron VP-4 single channel preamp that was upgraded by Egnater. It's now the same as a single channel Egnater M4. I've been doing a bunch of tube swapping lately and noticed something very strange. Whenever I change out the upper chasis tube on the M4 to something other than a Sovtek, Ruby, or Groove Tube R, I get a horendous pop when changing channels. I absoluely love the tone I get from the new Genelex Gold Lion 12AX7 in this position but the pop drives me crazy. Has anyone else come across this? Tungsols and JJ's in the upper position also cause this pop. Is there anything I can do to the M4 so that I can run the Genelex tubes in it. Anybody? [/QUOTE]
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Modular Amps
Egnater / Randall Modular Amps
M4 has loud pop changing channels (tube brand specific)
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