NAD: Old -vs- New

Does anyone share my observation? I have owned NAD gear over the past 21 years. Specifically the NAD 2200 power tracker amp along with the NAD 1130 preamp. I also purchased a NAD 7140 receiver along the way. I have recently purchased a NAD C372 int-amp to replace the 7140. My immediate impression was that both the 7140 and the 2200/1130 combo are a lot more dynamic in power and musical impact compared to the C372. The only advantage I found in the C372 is that it has slightly better spacial imaging. This slightly better spacial imaging did not impress me to the point that I thought it was worth the money when compared to the performance of my old gear. I was considering the NAD master series to replace my 2200/1130 combo but have become apprehensive about it. Your observations and thoughts on this is appreciated.