[danmagicman7]

When turning on my WA6 "cold", I get some really neat and distorted humming sounds going through the headphones. It starts in the right ear, then swings around to the left ear, gives a distorted groan then pans back to the center.

I think I've determined I'm hearing the Mullard 5AR4 rectifier tube warming up and giving me its "yawn". Tuberolling the drive/power tubes doesn't change the sound of the waking up noise.

Maybe this is a bad thing...but it sure sounds fine when the tube is all warmed up .

Anyone else have this happen with their tube amp? Share your experiences .

 

[OutdoorXplorer]

I used to experienced the same with my Raptor initially and I thought it was the tubes. Eventually I discoverred it was kinda EMI/RFI cased by interconnects and LOD during cold startup. The issue is gone since I got my hands on the ALO Wood dock.

Quote:

Originally Posted by danmagicman7 /img/forum/go_quote.gif When turning on my WA6 "cold", I get some really neat and distorted humming sounds going through the headphones. It starts in the right ear, then swings around to the left ear, gives a distorted groan then pans back to the center. I think I've determined I'm hearing the Mullard 5AR4 rectifier tube warming up and giving me its "yawn". Tuberolling the drive/power tubes doesn't change the sound of the waking up noise. Maybe this is a bad thing...but it sure sounds fine when the tube is all warmed up . Anyone else have this happen with their tube amp? Share your experiences .

 

[TopPop]

No, but I like the tinkling sound when they go to sleep!

 

[danmagicman7]

Quote:

Originally Posted by OutdoorXplorer /img/forum/go_quote.gif I used to experienced the same with my Raptor initially and I thought it was the tubes. Eventually I discoverred it was kinda EMI/RFI cased by interconnects and LOD during cold startup. The issue is gone since I got my hands on the ALO Wood dock.

ALO wood dock?

 

[BIG POPPA]

I have a Maple dock. Great sounding. ALO Audio

 

[928GTS]

Its one of the more beautiful things of owning a tube amplifier.

 

[olblueyez]

I sure do. I like turning off my amp before my source and listening to the music with no AC power for about 20 seconds.