"Moralloh" (compare sound of 4 receivers)

Comparing the sound of 4 different receivers:

2018 iCOM IC R8600

1964 Siemens REL 445 E311 b1b

1957 Rohde & Schwarz  EK07 D

Mid '50s RACAL RA17 L3

Moralloh
Youtube version: https://www.youtube.com/watch?v=QfOA8Pvzd8M