Albert, here's a really inexpensive and effective (they can't fall over!) cable lifter solution:
Buy (as many as necessary) polypropylene foam children's pool noodle play floats in your choice of color (including grey if you look around).
They come in 6 foot lengths, round or hexagonal cross-section (about 5" dia.) and most have a hole in the middle.
Cut them into 4" sections and thread as many as necessary onto your speaker cable.
Much more effective (and attractive IMO) than the porcelain insulators, which BTW are available for pennies at most used building or electrical supply yards.
Buy (as many as necessary) polypropylene foam children's pool noodle play floats in your choice of color (including grey if you look around).
They come in 6 foot lengths, round or hexagonal cross-section (about 5" dia.) and most have a hole in the middle.
Cut them into 4" sections and thread as many as necessary onto your speaker cable.
Much more effective (and attractive IMO) than the porcelain insulators, which BTW are available for pennies at most used building or electrical supply yards.