Hi Jason,
don't blame yourself!
Fortunately you have the returning policy, right?
For that price difference, I wouldn't think twice; I mean, I would return the Pioneer and get the Yammi instead.
Please note that I'm sure both are excellent gears, but they're basically on same league, so end of the line you'll be the winner, as you'll save $ 470 bucks and will still have an awesome piece of gear, for sure.
Good luck on your trade and enjoy the sound!
Cheers / Avliner.