Members Ed Lauwerens Posted July 30, 2005 Members Share Posted July 30, 2005 I would like any advise on the following. I have a rack with the following signal chain: Rocktron Rack Interface > Dunlop Rack Wah > TC Electronics G-Force > Mesa Boogie Mark 4. I use a Rocktron All Access to steer everything. This works fine. When I replace the Mese Boogie amp with my new Alessandro Bluetick amp, the noise from the rack is too much. I thick the reason it is bothering now is that the Alessandro amp is just so much better than the Mese Boogie, so it picks up the noise that I didn't notice that much before. (if I go straight in the Alessandro there is no noise at all, it is definately produced by the rack. Even just putting the G-Force between guitar and Alessandro adds quit some noise). I'm now thinking of two things.1. Add a ISP Decimator ProrackG in the signal chain in the rack to reduce noise.2. Add a DMC GCX Guitar Audio Switcher in the rack, so that when I don't use the G-Force or Rack wah, the signal will go straight to the amp instead of still running through these. Do you think 1 and 2 are the right thing to do? Does anyone know where I can buy a DMC GCX? (can't find them anywhere for sale) Thanks, Ed:confused: Link to comment Share on other sites More sharing options...
Members SteveVHT Posted July 30, 2005 Members Share Posted July 30, 2005 Well it sounds to me like you have a ground loop hum. A Decimator will hide it, but won't get rid of it. I suggest that you keep the head grounded, and remove the power ground from all the other units. You only need a single ground in a rack system. Do you use 110 or 220 voltage???? If it's 110, you can easily check this out by getting a few 3 prong adaptors to lift the ground on the other units. All of the components are sharing a common ground via the audio cables/instrument cables, so there is only a need for one, and it's not dangerous. I'd also suggest a good power conditioner. Steve PS- My entire rack only has one ground on one of my power amps. Everything else is grounded via the audio cables.... Link to comment Share on other sites More sharing options...
Members Ed Lauwerens Posted July 31, 2005 Author Members Share Posted July 31, 2005 Hi Steve, Thanks for the tips. I use 220V by the way and do a a good power conditioner in the rack (Samson Powerbrite). I will give it a try. Thanks and I'm impressed by your rack; do you have a looper in there? regards, Ed Link to comment Share on other sites More sharing options...
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