Line6TW Posted January 5, 2023 Share Posted January 5, 2023 Hi. I heard a "pop" from the back of the amp and now there is no bass. The tremble and mid knobs work but not the bass. Quote Link to comment Share on other sites More sharing options...
psarkissian Posted January 5, 2023 Share Posted January 5, 2023 Needs to be serviced by an Line 6 authorized service center. There are about four things it could be. If the tubes are not specified tubes, a chip may have failed. Could be old or incorrectly biased tubes. Quote Link to comment Share on other sites More sharing options...
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