thank you for your input. Are there any specific brands and models that you would recommend? Thank you
It is not black and white. The fact is, 8 or 4 ohms don't matter as much as how loud you listen and how far you seat. Given that the specs are:
Sensitivity: 92dB. Impedance: 8 ohms nominal, 2.8 ohms minimum. Recommended amplification: 50–300W.
According to Stereophile, sensitivity is more like 89.5 dB/2.83V/m.
I would consider them to behave more like 4 ohms nominal, but again, it's the spl and distance that matter most. So if you don't listen loud, not sitting far, an amp rated 50 W into 4 ohms would be fine. On the other extreme, If you want to get the maximum spl out of those speakers, then a 300 to 500 W rated into 4 ohms amplifiers will be a good match. As for brands, the popular ones such as ATI, Anthem, Bryston, Monolith, Outlaw, Parasound, NAD, Hegel, all make good power amps. On the vintage side, there are also Denon, Marantz, Yamaha, Kenwood, and of course, Sansui. Just take a good look of the specs and bench measurements (if you can find them), and you will know if the amp is a good match for those speakers. Subjective reviews may be fun to read but in my opinion, not very useful.