Stellar S300 help

Hi all, this is from Italy and technical words are not my best.
I own an Onkyo Integra Series (388 + 588 pre and power amp 1995) with a pair of Klipsch Palladium P37f (4 ohm and 96 db os sensitivity). Thanks to friends in an Italian forum i discovered that this amp, when loaded with power and reaching low impedance, cuts the current so the amp result to be not dynamic. I’m interested in buying the stellar s300 but I’d like to know if it could have such problems too.