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Report Review for product Vacuum Tube - EL84, Tube Amp Doctor

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Installed a matched pair of these TAD EL84-STR's in my Vox Night Train 15H and got a loud hum after taking the amp off standby, after a warm up for 3-4 minutes. Gain and volume all the way down, the amp is self biasing. The hum would disappear after 2-3 minutes. But this is occurring less though, the more the tubes are being broken in and used. These tubes break up a lot earlier than the Preferred Series 7189 I had in before. I have to dial back the gain a lot on my amp. It's an aggressive tube, with a wide fat tone. It's great for rock or crunch. Lots of bass and good midrange, but less headroom compared to what I had in before.

echodigger - August 4th, 2018