schapman1022 Posted July 17, 2017 Share Posted July 17, 2017 I have the slanted 4x12 cab for the Spider Valve MkII. Might be a dumb question.. but what would cause the bottom right speaker to stop working only when the cab is switched to 16ohm? It seems to work just fine when at 4ohm. Quote Link to comment Share on other sites More sharing options...
psarkissian Posted July 17, 2017 Share Posted July 17, 2017 HD100 MkII? Which output on the amp is it plugged into? Quote Link to comment Share on other sites More sharing options...
schapman1022 Posted July 17, 2017 Author Share Posted July 17, 2017 Yeah that is the matching head for the cab. I have one but am currently using a different head with the cab since I am now using the Helix. I am using the Crate Powerblock. It has 8ohm mono (150w) and two stereo outs at 4ohm (75w). According to a L6 FAQ I followed, Im running the 8ohm mono to the left mono in of the cab running 16ohm. Quote Link to comment Share on other sites More sharing options...
psarkissian Posted July 17, 2017 Share Posted July 17, 2017 Don't do that. Never mismatch impedances,... especially with a valve amp, they are not forgiving of impedance mismatches. Run 16-Ohm load to a 16-Ohm amp output, 8-Ohm load to 8-Ohm amp output. 8-Ohm out to a 16-Ohm load will attenuate or result in barely audible signal (if any). Quote Link to comment Share on other sites More sharing options...
schapman1022 Posted July 17, 2017 Author Share Posted July 17, 2017 Yeah there is a lot of conflicting information all over the internet on this. According to this article from L6, what i am doing is acceptable http://line6.com/support/page/kb/_/general-faq/cabinet-connection-and-ohm-faq-r436 Any ideas on why that one speaker won't work just in 16ohm mode? Its the same even with the L6 head going 16 to 16. Quote Link to comment Share on other sites More sharing options...
psarkissian Posted July 17, 2017 Share Posted July 17, 2017 If it's not impedance mismatch, then the other possibility is that it might be damaged. Or the switch on the speaker cabinet is failing. Log a support ticket, it should troubleshooted by an authorized Line 6 service tech who knows the product. Quote Link to comment Share on other sites More sharing options...
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