I have nothing against EbTech gear, and those may solve your problems. My only caution is to make certain the transformers/isolators will handle line level signals of at least +4. I know Radial makes units that handle +18.
I once had customers that bought a pro quality graphic EQ. After the first weekend they used the graphic, they brought it back demanding a refund and complaining that it distorted horribly. A test in the shop showed the EQ worked perfectly. They tried it on their next gig and had the same problem. It turns out the customers were using Radio Shack mic transformers to "convert" the XLR balanced EQ ins/outs for use with their 1/4" mixer outs and power amp inputs. It did sound horrible! Those transformers were only good for a bout a -30 level.