I think the older 900 series gear was very musical with a slight grain but not enough to detract. The 10 series seems to follow the trend of much gear of detail and more detail which leads to a thin lean sound. Parasound is also good but I would not say one is better then the other Just different
I see the word technology thrown around a lot I worked in the audio bizz back in the day and it seems amp technology has not changed much since 1980 other then Class D. Things are made cheaper and you do get better sound for less money it seems. Things keep recycling. Tubes are in tubes are out MOS FETs are in MOS FETS are out (usually at the same time). The only way to know for sure what you like is to bring them in and compare.
I see the word technology thrown around a lot I worked in the audio bizz back in the day and it seems amp technology has not changed much since 1980 other then Class D. Things are made cheaper and you do get better sound for less money it seems. Things keep recycling. Tubes are in tubes are out MOS FETs are in MOS FETS are out (usually at the same time). The only way to know for sure what you like is to bring them in and compare.