7enderbender
New member
Hello Everyone,
I'm using the time off from work and the holiday weekends to work on some new material for my band projects. Setup is a Mac with a Focusrite Saffire 40 interface, my guitar rack centered around a Mesa Boogie Triaxis (running with a tube stereo power amp, which is why I mention this), two cabs right now (a stock Marshall 4x12 and a Mesa 2x12). I use the rig live (with either the two cabs or the 2x12 set up in stereo) and have never noticed any phase issues.
When recurring tracks today coming from the two cabs I noticed they were canceling each other out in Logic Pro X. I use two SM57 mice (one old one new) and two identical Live Wire cables,
So my first though was that I messed up when rewiring the Mesa cab to stereo (with a original Mesa jack plate and following their instructions). Or that the Mesa and Marshall cabs don't get along in that respect. Well, I tested it by moving the microphones together on one speaker cone and they still phased out. So with that I'm ruling out issues with the cabs. I am able to phase correct one track ion Logic - but I still find it odd.
What is the source of the phase inversion? The Focusrite doesn't have phase switches, I'm using the two front mic inputs (1 and 2, both set to mono). Could it be that the Saffire itself isn't wired correctly? Could the two versions of the SM57 be different? Cables seem unlikely. So I'm at a loss.
Again, this is not an issue now for recording now that I know - but I'm concerned I may end up in the same situation live with my rig and using the same microphones and cables. What are the correct ways to troubleshoot?
Thanks
I'm using the time off from work and the holiday weekends to work on some new material for my band projects. Setup is a Mac with a Focusrite Saffire 40 interface, my guitar rack centered around a Mesa Boogie Triaxis (running with a tube stereo power amp, which is why I mention this), two cabs right now (a stock Marshall 4x12 and a Mesa 2x12). I use the rig live (with either the two cabs or the 2x12 set up in stereo) and have never noticed any phase issues.
When recurring tracks today coming from the two cabs I noticed they were canceling each other out in Logic Pro X. I use two SM57 mice (one old one new) and two identical Live Wire cables,
So my first though was that I messed up when rewiring the Mesa cab to stereo (with a original Mesa jack plate and following their instructions). Or that the Mesa and Marshall cabs don't get along in that respect. Well, I tested it by moving the microphones together on one speaker cone and they still phased out. So with that I'm ruling out issues with the cabs. I am able to phase correct one track ion Logic - but I still find it odd.
What is the source of the phase inversion? The Focusrite doesn't have phase switches, I'm using the two front mic inputs (1 and 2, both set to mono). Could it be that the Saffire itself isn't wired correctly? Could the two versions of the SM57 be different? Cables seem unlikely. So I'm at a loss.
Again, this is not an issue now for recording now that I know - but I'm concerned I may end up in the same situation live with my rig and using the same microphones and cables. What are the correct ways to troubleshoot?
Thanks