I don't know about that.
I have vintage Marantz, Pioneer and Sansui receivers and I can tell you that I have restored them all and the Sansui QRX5500 sounds better than the others. I love the wood grain enclosures. Just like older Pioneer Elite electronics that were built like tanks.
The Marantz 2252B sounds really nice, but I was told that earlier Marantz models are better and that the B was a slight downgrade. I like it anyway, but for sound, the Sansui is simply better sounding.
If it works and you can get it fairly inexpensively, go for it.
enjoy