Whirlwind ISO-8 Line Level Isolator and Balancer

Sometimes a ground lift is not enough. The ISO-8 is the box for systems where different pieces of gear are connected across long lines and the two ends do not agree about what ground is, which is where hum and buzz come from in a building-wide install.

Transformer isolation breaks that loop properly rather than just disconnecting a pin, and it balances the line at the same time. The ISO8Q is the alternative build in the same family.