I would avoid the Sony. I would also get something with a little larger amp section to drive your towers.
Why?
The Sony has more power output.
Power Output @ 1% THD 2CH 8 ohms/ 2CH 4 ohms/ 5CH 8 ohms
$580 Denon 1913: 117.7/151.1/81.7
$550 Yamaha 573: 111.4/126.2/24.9
$500 Sony 1030: 134.7/167.7/90.4
$450 Pioneer VSX42: 118.2/157.8/79.9
Emptek E55ti is 88dB/w/m, 4 ohms around 6 kHz.
If listening distance is 10ft, max total volume is 94dB like me in 2.0 mode, it would require about 20W into 8 ohms and 40W into 4 ohms.
If max volume is 3dB higher than mine, it would require 80W into 4 ohms.