So PayPal's fraud prevention stuff isn't really a safeguard?
Sadly, no.
PayPal offers much more assurance to the buyer than it does to sellers.
Too many horror stories to even get started.
As a long time seller/buyer, I don't think that I would accept an offer from a buyer with zero feedback on a pair of speakers, requiring the use of PayPal AND shipping.
I would be either looking for a cash 'n carry local deal, or a USPS money order, bank, or even personal check (wait to clear before shipping) if I was going to ship.
Granted, as a buyer with no feedback, I would be leery of buying from a seller with no feedback without using PayPal.
Just remember that PayPal may help the buyer out, particularly if he uses a credit card, but PayPal is not there to protect the seller.
Good luck with your sale.
John