I work in a technical field so I know that regular mains power is not always perfect. But, having just seen a 200+ dollar surge protector and power supply smoother/noise elimantor at Best Buy I got to really wondering if it is worth it? Yes you need surge protection, but do you need to spend the extra 150 on the souped up power strips which claim to offer more? If so...why doesn't Denon et al. market a power strip or heaven forbid build an extra component into their products?