You are considering whether to buy a product. You look at the reviews. Would the following review decrease or increase the chances of you buying the product?
Review title: Worked well
Product review: I had been hearing a hum from the subwoofer of an Onkyo HT-S9100THX system. This was much louder when I ran a space heater. It tested the whether it was a grounding issue by using a 3-prong to 2-prong AC plug converter. This eliminated most of the hum. Not wanting to leave the system ungrounded, I purchased this device, plugged all of my components (cable box, receiver, subwoofer, Blu-ray player, HD TV) into a single surge protector and plugged it into the Hum X. There's only a hardly noticeable hum now from the subwoofer, even with the space heater running.
