EDIT: Oops! It's not an "audio power isolator." The header should read "Transparent Cable Power Isolator." In an effort to become debt-free, I'm selling off pieces of my HT... This unit has 4 power outlets that offer AC noise reduction. You can plug in outlet strips to them to accommodate more components. It does an amazing job of cleaning up video and audio. It does this by removing all noise in the power line that don't conform to the perfect 60Hz sweep your components expect. It does NOT limit current or offer "surge protection." This unit is in excellent condition and is rated for U.S. voltage ONLY. It is about 3 years old. This unit sold for over $1500 and I'm selling it for $700. The buyer must pay for actual shipping charges (from my local Pak-Mail store). Cashier's check or postal money orders only, PayPal not accepted.