Hello,
Don't confuse chassis ground with signal ground. Having a wall wart
(or other 2 prong connector for power) has little to do with the signal
ground. You need (NEED) to have a common signal ground with the
Frostwave, Serge, and the Mackie. This is easy, John told you how
to do the ground to the Mackie, now do the same with the Frost wave.
Actually, the easiest way to handle all of this is to make a little converter
box that has bannana jacks and 1/4" jacks. That takes all the Sleeve connectors
from the 1/4" jacks and runs them to a single (black) bannana jack. All the tips
of the 1/4" jacks should then go to individual (of some other color) bannana
jacks. Then you can run a single bannana cable from the Serge power supply
to the black jack on your box. All other connections should be the obvious
ones. BTW MOTM (Paul Schreiber) makes just this sort of adapter panel.
Don't confuse chassis ground with signal ground. Having a wall wart
(or other 2 prong connector for power) has little to do with the signal
ground. You need (NEED) to have a common signal ground with the
Frostwave, Serge, and the Mackie. This is easy, John told you how
to do the ground to the Mackie, now do the same with the Frost wave.
Actually, the easiest way to handle all of this is to make a little converter
box that has bannana jacks and 1/4" jacks. That takes all the Sleeve connectors
from the 1/4" jacks and runs them to a single (black) bannana jack. All the tips
of the 1/4" jacks should then go to individual (of some other color) bannana
jacks. Then you can run a single bannana cable from the Serge power supply
to the black jack on your box. All other connections should be the obvious
ones. BTW MOTM (Paul Schreiber) makes just this sort of adapter panel.