Woj650 Posted December 14, 2020 Share Posted December 14, 2020 Hi. I bought a faulty DT 50 head. The guy I bought it from said it loses volume while playing doesn't mater if it is on channels AB or A. I thought the problem was in power tubes and changed them but it still loses power after 10 min of playing or when I crank volume a bit up. When I switch the amp off for a few minutes to cool it down it works and trips again. Has anybody had similar problem with DT 50 head or knows what can cause it? Quote Link to comment Share on other sites More sharing options...
psarkissian Posted December 15, 2020 Share Posted December 15, 2020 What brand and number are the tubes? Are they a matched set of power tubes? Were the pre-amp tubes changed out? Being a head,... are the speakers being used plugged into the correct impedance outputs? Quote Link to comment Share on other sites More sharing options...
Woj650 Posted December 22, 2020 Author Share Posted December 22, 2020 Hi. The tubes are new Electro Harmonix EL34 with no. on 16 07 both. Mutched. New preamps tube as well. Speaker conected properly and it did not fix the problem. I think it might be a production issues but don't know how to check it. I sent an amp to Amps repair shop. I am based in Scotland and there's not Line6 service hear as far as I know. We'll see Quote Link to comment Share on other sites More sharing options...
psarkissian Posted December 28, 2020 Share Posted December 28, 2020 There is also a switch on the back of it for Low Volume when playing in small spaces like one's own home. Quote Link to comment Share on other sites More sharing options...
bverdon Posted January 9, 2021 Share Posted January 9, 2021 I don't believe that is correct regarding a low volume switch on the back. Quote Link to comment Share on other sites More sharing options...
psarkissian Posted January 12, 2021 Share Posted January 12, 2021 It's a slide switch, page-4, item #15 in the manual diagram. Quote Link to comment Share on other sites More sharing options...
ParkerFlyMajik Posted January 12, 2021 Share Posted January 12, 2021 10 minutes ago, psarkissian said: It's a slide switch, page-4, item #15 in the manual diagram. I believe you are confused with the DT25 which has the switch. The DT50 has a push/pull master volume pot for this function. ;-) Quote Link to comment Share on other sites More sharing options...
psarkissian Posted January 12, 2021 Share Posted January 12, 2021 Right. That's what I get for wearing spectacles. Quote Link to comment Share on other sites More sharing options...
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