FarleyUK Posted December 1, 2016 Share Posted December 1, 2016 Hi all, I'm trying to set everything up ready for my first FRFR direct gig tomorrow night, and keep coming across this weird 'buzzing distortion'. It seems to be most obvious on low notes. It happens even going input -> Amp (Brit 2204) -> IR (OwnHammer G12 SM57). Gain on the amp is set to about 5, EQ is around the middle for all. Have tried adding the cuts on the IR (low of 230Hz has a slight effect, but it's still there). Speaker is a QSC K10. Guitar is a Les Paul with Aldrich Suhr pups. The guitar pad setting helps it, but I much prefer the tone when it's off! Please can anyone help? Quote Link to comment Share on other sites More sharing options...
Lachdanan0121 Posted December 2, 2016 Share Posted December 2, 2016 You sure it isn't happening in the guitar? For instance maybe a truss rod buzz? As they are more dominant on the lower notes. Maybe someone else can help further. Quote Link to comment Share on other sites More sharing options...
DunedinDragon Posted December 2, 2016 Share Posted December 2, 2016 Is the low cut on the speaker turned on? Most modern FRFR speakers have a low cut switch for either 100 or 125 hz. Some have both. You may be getting a resonant buzz from the speaker cabinet or something in the room. Try raising the low cut on the IR and see if that gets rid of it. I've had this happen in our rehearsal space and it ended up being a shelf on the wall that had a response to a certain frequency. Once I got the speaker on the stage it disappeared. Chances are you don't need any of those low frequencies anyway. Quote Link to comment Share on other sites More sharing options...
rvroberts Posted December 2, 2016 Share Posted December 2, 2016 Hi FarleyUK. OK - don't use the pad - you don't need it. Instead trouble shoot the problem. First unplug the guitar lead from the Helix - does the noise go away? If so turn up the gain on the amp - is it still quiet? Then just plug in your lead - do not connect it to the guitar - make sure the other end is not contacting anything metal - don't hold the tip etc - what happens - You should hear that bit of extra noise you would expect through any amp - but not anything extreme. If you do - get another lead. If its all good, plug in your guitar. If you suddenly get a lot of noise, it's your guitar. If when nothing is connected you have noticeable noise - it's the Helix. Quote Link to comment Share on other sites More sharing options...
FarleyUK Posted December 2, 2016 Author Share Posted December 2, 2016 Thanks guys - the sound is only when notes are played, so I don't think unplugging things would help check it. This morning, I quickly set it up to check, and if I set the speaker to use an external sub it seems better. Hopefully it's just that.... Quote Link to comment Share on other sites More sharing options...
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