Grounding cable gauge size

I'll try grounding my negative speaker terminal to earth ground rod 

bury a large copper plate or large piece of scrap with about 3‘ cover and water during dry weather  -  have used this for RF for decades. Even a car radiator works well.

I have found that sometimes logic doesn’t always translate to audio reality. Especially when it comes to all things in this hobby.

Ozzy, completely agree...being new to this hobby for a little over a year now I am continually amazed how all sorts of tweaks make a big difference.   You need to have an open mind that non-logical changes may have a positive impact on your system.  The only way to know is give it a try with an open mind.  Too many seem to have bias before getting started.  I always thought the best way to improve sound is upgrade components...not anymore.  Nps 1260, fuses, shuman generators, ground boxes, power conditioners, acoustic treatment, helmholz resonators, cables, optical FMC’s, and I’m only a little over a year in.  Mind bending to me.

A copper grounding rod can prove rather effective. 

tksteingraber,

Always keep an open mind and experiment. You will not only improve your listening pleasure but also have fun on the journey.

ozzy

Please help me to understand, I'm curious to try this speaker grounding tweak since my speaker cables go directly into a floor hole and are suspended in the rafters of my basement.

So I can run a wire from the black '--' speaker terminal to either the copper water pipes below (the panel box ground runs directly to an outside copper ground rod) or since it would be easy to drive a grounding rod underneath the speakers this is prefered? I can also easily do this at the amp '-' and compare the two spots and the two grounding strategies..

Thanks much.