duiduiblingbling Posted March 30, 2024 Share Posted March 30, 2024 I just got a used mk2 head. I just wanted to verify plugging into the preamp in bypasses the factory preamp and settings features. Also, if I use a preamp do I still use the fx loop for pedals or inline with the external preamp. Thanks Quote Link to comment Share on other sites More sharing options...
psarkissian Posted April 1, 2024 Share Posted April 1, 2024 1) It's pre-amp out and power amp-in. 2) #1 is the effects loop. https://l6c-acdn2.line6.net/data/6/0a06434d8ea4507efaf692112/application/pdf/Spider Valve MkII Pilot's Guide ( Rev F ).pdf Never turn on a tube amp without the correctly matched speaker load on the output(s). Quote Link to comment Share on other sites More sharing options...
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