As someone who appreciates the timing, tone, & timbre virtues of Naim, I suspect you'd greatly appreciate the same virtues evident in the RCM Sensor. The Parasound and RCM both operate in that category of (sorry for the overused, tired phrase) "punching above their weight class." The Parasound offers much higher name recognition, more handsome casework, and convenience of a single chassis. The RCM offers many more adjustments of impedance and gain, a separate power supply, and less appealing looks to my eye. In the end, I chose function over form and went with the RCM.
http://www.rcmaudio.pl/testy/rcm_sensor_review_kilian.pdf
http://www.rcmaudio.pl/testy/rcm_sensor_review_kilian.pdf