Seller initially wanted me to pay with Paypal Friends and Family in which he was temporarily banned. I then bought the Doubler uses standard PayPal payment. The package arrived visibly damaged and marked "Arrived in Damaged Condition" by USPS. The package also had a lot of "Resealed Repacked" tape applied by USPS because it was obvious it did not have adequate tape when shipped and the box came apart. PayPal claim was filed and seller fought it to the very end despite me supplying pics of the damage box and informing him that the amp does not work properly.