Denon's have no issues driving 4 ohm loads, and have been recommended my Axiom for years. My Denon 2805 can drive my 80's to levels beyond what most people listen, and that is a lot older model than the 4802.

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85