First of all - you should not accept a cosmetically defective product unless the dealer offers you a substantial discount. Personally, I would not accept it at all. I bought a demo Basis from a dealer and it was in absolutely mint condition, so you certainly should expect that from a new product. As to the hum - the dealer should be dealing with that. When you buy new from a dealer, part of the price is service and support. Have the dealer fix it. Period. Good luck and I'm sorry your early analog experience was negative. Hopefully your dealer will iron things out for you and you will be enjoying vinyl. (or not)