Granite Audio Ground Zero Star Grounding Unit.Lowers Noise Floor of any component(s) attached to it as well as immediately kills ground loops.Comes with wall cord to tie into home's ground. Older model #500.Used once found problem was due to component itself-not ground loop-hence the sale listing.Paypal only if backed by bank account (no cc PayPal).Price for quick sale $250-no lowballers.Check my feedback on Audiogon under membername Dusted1
