mchimes, I use to do pro audio and recording systems before i got into the electrical field. I have some 10 years experience in that area. I would run a seperate sub panel for all you recording equipment and install a Transient Voltage Surge Suppressor on that sub panel. Now Gronding and Bonding is the key for clean audio. All Racks and Rack mount gear HAS to be effectively bonded. Seperation of you audio and power cabling is a MUST!

Email me if i can be of any help....and yes dont you love paying $125 for a Furman power conditioner that is little more than an outlet strip...lol