Specs on the Auras are 50 watt min, 100 watt max each. As mentioned, watch the ohm ratings. If you can get the ohms to perfectly match the amp at the rated power you want, then count it as a miracle.
I had to hook up 8 of the non-pro versions that I've had for many years. (25/50 watt ratings instead on mine). They were each 4 ohms and I couldn't find a reasonably priced plate amp to drive them, so I got a $100 (new) stereo receiver and have the shakers in two 16 ohm sets of 4 shakers, one "set" for each channel. It wasn't just arbitrary that I went 16 ohms. I messed with all sorts of on-line speaker resistance calculators, talked to a couple of audio speaker engineers even, and the 16 ohm load was my best option.
Anyway, that reduces the output quite a bit being twice the resistance of waht the receiver was rated for. My other option would have been a lower ohm load that the receiver was rated for, and that is just asking for trouble.
Of note, I run my 25 watt min, 50 watt max Aura bass shakers at about 70% of their capacity and it is MORE than enough shaking with one per seat.