The increase in sound quality was so obvious that even the wife approved the purchase of such large speakers without hesitation. Denon 720 amplifier, denon 2807 receiver - before the difference was dramatic, but now the Aurora is such a light load that a cinema receiver does not give in to a stereo amplifier. I want to try something low-powered in class A. Pros below: I did not expect such an increase in sound quality after monitor audio mr4. Legibility and detail in low frequencies and punch surprised me the most. Someone complains about the lack of a lower middle, but I just liked it, the sound is more airy, it does not become attached to the speaker. Its cons: Very strange box and unpacking scheme. There are no handles and slots, it is extremely uncomfortable to wear, given the size. Further, usually for acoustics, the box is opened, turned over and removed upwards, but for these you can open it only by laying it horizontally. And then take out the slippery 25 kilogram column, as if from a coffin.