Manley NEO-CLASSIC 500 Monos, enough power for Audio Physic Avanti?

Good day folks. Could you please let me know if the Manley NEO-CLASSIC 500 monos (Factory set for 5 Ohms nominal) will have enough power for the Audio Physic Avanti (88db, 4ohm)? 

Manley provides 275W under triode mode and 500W under tetrode mode. Ideally I would like to stick to triode mode for better SQ (supposedly?).

Im not knowledgeable on the whole impedance, efficiency things so your help is greatly appreciated.