Can a Receiver do the work of 3 Adcom Products??

I have used Adcom:
1) GTP-400 tuner/preamp
2) GFA-555II 200 watt amp
3) GSP-560 3 channel surround amp

for years. I want to swap all that for 1 receiver. Can i get the same quality in a $700-1,000 dollar AV receiver - or do i have to go expensive (ADCOM).
Those components i listed above are 20 years old - although they work fine. Should I stick with what i have or can i get same quality in a single box?