F1-X problem!

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Author Message albrecht Member Username: albrecht Post Number: 56 Registered: 8-2005 Posted on Thursday, March 01, 2007 - 1:22 pm:    Whenever I use my F1-X (always in conjuction w/ my SF-2 superfilter and my Markbass- amp) I get these annoying & damaging electric, loud "pops" that overloads my amp. these sounds are independent of bass-choice(elan & epic), cables and grounding, &c. could the choice of voltage cause this problem? on the F1-X you can choose between 220V and 240V. we have 230V in sweden...what would you choose? best regards from sweden/ kristjan aunver davehouck Moderator Username: davehouck Post Number: 4835 Registered: 5-2002 Posted on Sunday, March 04, 2007 - 6:16 pm:    What voltage is the F-1X currently set for? davehouck Moderator Username: davehouck Post Number: 4836 Registered: 5-2002 Posted on Sunday, March 04, 2007 - 6:19 pm:    If you haven't already found it, here are the settings. albrecht Member Username: albrecht Post Number: 57 Registered: 8-2005 Posted on Monday, March 05, 2007 - 4:34 am:    hi, davehouck, and thanx for your promt reply. I talked to my tech-wiz and we agreed that these "pops" might orign from a defect 12AX7-tube. because this annoying effect doesn´t come until the amp is warmed up. I´m gonna try this theory with a spare. changing voltage was no remedy. I´m stuck on 240V. thanx from sweden/ k aunver mica Moderator Username: mica Post Number: 4211 Registered: 6-2000 Posted on Monday, March 05, 2007 - 11:04 am:    I checked with dad, and he says he would use the 240V for Sweden. Let me know what you find after you change the tube.