Muppet Posted May 31, 2015 Share Posted May 31, 2015 At Friday's gig the venue had a rope light around the stage that was set on a fading pattern. Until I asked them to switch it off there was a terrible buzz coming through my rig, especially during the fading up and down part of the sequence. The lights and amp were plugged in to different sockets. I've played here before with no problems but this time with a different rig and bass. Is this an indication of something wrong with either bass or amp that I need to look at do you think? steve Quote Link to comment Share on other sites More sharing options...
rmorris Posted May 31, 2015 Share Posted May 31, 2015 (edited) [quote name='Muppet' timestamp='1433108117' post='2787976'] At Friday's gig the venue had a rope light around the stage that was set on a fading pattern. Until I asked them to switch it off there was a terrible buzz coming through my rig, especially during the fading up and down part of the sequence. The lights and amp were plugged in to different sockets. I've played here before with no problems but this time with a different rig and bass. Is this an indication of something wrong with either bass or amp that I need to look at do you think? steve [/quote] I take it that the LED rope light was there previously when you played ? What are the respective basses and rigs ? Single Coil / Humbuckers / Active Pickups ? In any case I's say it's the LED rope light that is the real issue. Does it run off a power supply box that takes mains and output a DC Current / Voltage ? these are notorious for causing interference. Many won't pass EMC tests for interference but it's not really enforced effectively.. Edited May 31, 2015 by rmorris Quote Link to comment Share on other sites More sharing options...
JapanAxe Posted May 31, 2015 Share Posted May 31, 2015 I have had the same experience with a rope light and single-coil guitars and just switched the thing off myself. Quote Link to comment Share on other sites More sharing options...
Muppet Posted June 5, 2015 Author Share Posted June 5, 2015 Thanks for the replies. Bass has twin humbuckers, both on, amp was Markbass CMD121P. Yes the rope light was there previously. I did just switch it off and problem went away. I'm happy to think the issue was with the power and the rope light transformer rather than the amp and bass but you never know! Quote Link to comment Share on other sites More sharing options...
BILL POSTERS Posted June 11, 2015 Share Posted June 11, 2015 LEDs radiate radio frequencies. Not much but its there. You can sometimes hear it if you put an analogue radio near them, and often see it on the screen with cheapo CCTV cameras fitted with IR LEDs. Surprised it doesn't cause more problems than it seems to tbh. Quote Link to comment Share on other sites More sharing options...
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