Ok, I have a soft spot for the Pioneer sx-939, mine is fully restored and minty minty in the looks department. Ran that side by side against my Sansui 8080db, also fully rebuilt. Very similar sound between the two with ultra low listening due to the loudness contour nod going to the Pioneer. However, the Sansui tuner has far better sensitivity and tonal quality if you still are into fm (I am). Once you wind them up it seems the Pioneer starts to muddy up the detail while the Sansui just gets with the program. In the looks department they are both from the blue dial era and both have led upgrades, essentially a tie until you take a gander at those yellow power meters bopping along. Admittedly I went over the top with the 8080 with a custom flame maple bonnet. Either unit would please many listeners and make a fine audio centerpiece if you are into receivers. Both gals sit on the shop shelves these days though watching their bigger siblings strut their stuff (SX1980 and G9000) but thats a story for another day.
Here they are from a couple of years ago keeping me company while I was restoring an SX-1980.
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