Hello you engineer angels and bass amp audiophiles. Once again the clueless ask for your help. I bought a crown power amp and a tech 21 rbi, and have done my best to follow the manuals. I plug my bass into the front 1/4 inch input on the RBI, and connect the RBI to the Crown via the 1/4 output of the RBI, into the combo 1/4/slr input of the Crown with a balanced 1/4 cable, (one of the Crown manual's suggested options). I noticed the RBI manual only claims the xlr output to be "balanced". I was saving that output for connection to house PA, but since the crown manual says to use "balanced" out into their amp, maybe I will switch to xlr connection from the rbi. Currently I get a lot of snap crackle pop if I wave my two G&L L-2000 bass headstocks toward the amp/speakers, and other ground issue noises touching the metal control knobs. The funny thing is I get almost no problem when I plug in my Carruthers 5 string, which has a well shielded contol cavity. This link one of you experts provided on TB says you can disconnect the shield of a balanced cable at the amp input as a possible solution? http://www.rane.com/note110.html Any hands on experience about where I should start to get rid of the noise?