teslasdeathray Posted December 25, 2018 Share Posted December 25, 2018 Sooooo, I have 2 MKII H100 heads with new tubes. One on a Genz Benz flex 412, and the other on an Orange ppc412 and have had them for a bit. So what Im experiencing is this reverb hissing noise when I play really fast stacatto notes/chugs on my 8 strings low F. At loud volumes there is no definition of the note and it sounds like this wall of static. Really its pretty much anthing thats tremelo picked on the lower registry and you cant make out the note. Its almost like a digital reverb, or some sort of very very miniscule delay. I feel like I experienced this with a pod a long time ago. Honestly im sure these have always behaived this way, but Im just now getting time to "dial in" my tone. Like if I so much as stroke the strings I get this reverby hiss. Its not tight and at loud volumes when im doing these precision patterns, it sounds like mush. Like the reverb/hiss keeps going till after say a second then it stops. I have adjusted presence, turned off reverb, adjusted the vintage plate and its driving me nuts. So much so that I might need to venture to other amps. Does anyone know what this is? I play on the Metal amber channel. I have also adjusted the noise gate but it kills alot of my gain for pinch harmonics and stuff. The issue is the amp just isnt tight on low notes at louder volumes. Anybody have any ideas? Oh and this is on both of them. I had a friend that played in F# and his was amazing but he has since sold his and bought a powerball2.:/ Quote Link to comment Share on other sites More sharing options...
psarkissian Posted December 26, 2018 Share Posted December 26, 2018 1- Are the news tubes Line 6 specified matched quartets for the power stage? 2- Are the power tubes correctly biased? Quote Link to comment Share on other sites More sharing options...
teslasdeathray Posted December 26, 2018 Author Share Posted December 26, 2018 yes they are. They are the sovteks. Quote Link to comment Share on other sites More sharing options...
psarkissian Posted December 26, 2018 Share Posted December 26, 2018 Good. 5881WXT? Was it correctly biased? What pre-amp tubes are in there? Quote Link to comment Share on other sites More sharing options...
teslasdeathray Posted December 26, 2018 Author Share Posted December 26, 2018 the 12AX7B Quote Link to comment Share on other sites More sharing options...
psarkissian Posted December 27, 2018 Share Posted December 27, 2018 Who biased the power tubes and what was the bias that was used? Quote Link to comment Share on other sites More sharing options...
teslasdeathray Posted December 27, 2018 Author Share Posted December 27, 2018 It was a line 6 authorized tech here in dallas. Do you think this is related to tubes? Quote Link to comment Share on other sites More sharing options...
psarkissian Posted December 27, 2018 Share Posted December 27, 2018 Which one? How long ago? 1) Tubes would be my first suspect, 2) biasing the next suspect, 3) plugging speakers into the incorrect amp output, 4) loose or mis-connected cable, 5) an interface cable, 6) short on the UI board. Quote Link to comment Share on other sites More sharing options...
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