Pete Academy Posted October 25, 2009 Share Posted October 25, 2009 I played a couple of gigs in Scotland on Friday and Saturday. I'm now using a Markbass LMK head with my Ashdown 4 x 8" and 1 x 15" cabs. Simple setup - Roscoe SKB5 through Boss TU2 into amp. Premium cables. Batteries fine in bass. I was getting a high-pitched noise through the rig. I tried going straight into the amp and bypassing the tuner, but it was still there. It's not present when there's nothing plugged in, and it goes when the bass is turned down. The ground lift switch made no difference. I'm going to take the amp and bass into our shop and try them through different cabs. Any suggestions in the meantime? Quote Link to comment Share on other sites More sharing options...
BOD2 Posted October 25, 2009 Share Posted October 25, 2009 If your gear is ok then it sounds like it might be picking up something. Perhaps something generated by someone else's equipment close by. Sometimes you can use the bass like a direction-finding attenna - turn it around to see if the noise is stronger when you're facing one particular direction then move around to see if you can locate where the noise is loudest. It can also be the cables - check where they are running and move them away from other equipment (especially power supplies). Just moving the cables while you can hear the noise will sometimes narrow it down. Has anyone else in the band started using new equipment lately ? Quote Link to comment Share on other sites More sharing options...
Pete Academy Posted October 25, 2009 Author Share Posted October 25, 2009 [quote name='BOD2' post='636286' date='Oct 25 2009, 05:08 PM']If your gear is ok then it sounds like it might be picking up something. Perhaps something generated by someone else's equipment close by. Sometimes you can use the bass like a direction-finding attenna - turn it around to see if the noise is stronger when you're facing one particular direction then move around to see if you can locate where the noise is loudest. It can also be the cables - check where they are running and move them away from other equipment (especially power supplies). Just moving the cables while you can hear the noise will sometimes narrow it down. Has anyone else in the band started using new equipment lately ?[/quote] I will try those things. Yeah, come to think of it, there is some new equipment. Cheers, Pete Quote Link to comment Share on other sites More sharing options...
dodgnofski Posted October 28, 2009 Share Posted October 28, 2009 (edited) [quote name='Pete Academy' post='636279' date='Oct 25 2009, 04:58 PM']I played a couple of gigs in Scotland on Friday and Saturday. I'm now using a Markbass LMK head with my Ashdown 4 x 8" and 1 x 15" cabs. Simple setup - Roscoe SKB5 through Boss TU2 into amp. Premium cables. Batteries fine in bass. I was getting a high-pitched noise through the rig. I tried going straight into the amp and bypassing the tuner, but it was still there. It's not present when there's nothing plugged in, and it goes when the bass is turned down. The ground lift switch made no difference. I'm going to take the amp and bass into our shop and try them through different cabs. Any suggestions in the meantime?[/quote] Hi Pete, I've had a thought - the amp is probably 'complaining' because you are playing too many notes & Fagen 'Mu major' patterns through it ! I never had a problem playing 'dum - de - dum - de - dum' through it, apart from it falling asleep through boredom ! Only joking me owd fruit - hope you've got it sorted, as I'm just about to trade your 12 month guarantee for an F1 All the best, dodger x x Edited October 28, 2009 by dodgnofski Quote Link to comment Share on other sites More sharing options...
Pete Academy Posted October 29, 2009 Author Share Posted October 29, 2009 [quote name='dodgnofski' post='638739' date='Oct 28 2009, 08:02 AM']Hi Pete, I've had a thought - the amp is probably 'complaining' because you are playing too many notes & Fagen 'Mu major' patterns through it ! I never had a problem playing 'dum - de - dum - de - dum' through it, apart from it falling asleep through boredom ! Only joking me owd fruit - hope you've got it sorted, as I'm just about to trade your 12 month guarantee for an F1 All the best, dodger x x[/quote] You could be right. Now you've got me thinking about those Aguilar cabs. Quote Link to comment Share on other sites More sharing options...
velvetkevorkian Posted October 30, 2009 Share Posted October 30, 2009 Maybe it was the infamous "Glasgow hiss"? Quote Link to comment Share on other sites More sharing options...
Pete Academy Posted October 30, 2009 Author Share Posted October 30, 2009 [quote name='velvetkevorkian' post='641092' date='Oct 30 2009, 01:58 PM']Maybe it was the infamous "Glasgow hiss"? [/quote] Quote Link to comment Share on other sites More sharing options...
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