Tuner or Receiver


I'll preface my main point and question by saying that I recently bought a used Yamaha RX 596 Receiver which is around 15 years old.  After biwiring my Castle Conway 3 Towers to it, I have been blown away by the sound from this system.  Far better than any previous amp I've used with these speakers and probably due to the 85 wpc vs 60 wpc or less and only using a single speaker cable for each.  


This leads me to the question about tuners and receivers.  Currently I have a Carver TX11a and also a Onkyo T-4310r.  Both are quite old but still work fine.  But...  Has recent tuner technology advanced beyond the the units from the 80's and 90's?  Is the sensitivity of the AM and FM sections superior these days and is the selectivity also better?  I don't need Digital FM and still listen to analog AM and FM.  Just want to know if I would be better off with a new tuner or receiver that would offer better audio quality or better signal capturing ability?  The tuner in the RX 596 is OK but also dates to about the same time as the Onkyo tuner.  Onkyo seems better too.
will62
@audiolabyrinth 

I'm selling mine https://newyork.craigslist.org/lgi/ele/6291300794.html

And from what I understand, I'm asking a very reasonable price. I've seen this on the Internet for more than twice what I'm asking. If you are in the NY Long Area and are interested, let me know. 
erik_squires
In my mind, the FM tuner has by and large been replaced by Internet radio. While we can argue sound quality, issues of reception are more or less fixed given a stable Internet connection.
Given good reception conditions (a reasonable distance from the transmitter, and a proper antenna and installation) FM offers a v-e-r-y stable connection. In fact, the signal from many radio stations is sent over-the-air using an STL (or two) before it ever reaches the transmitter.

As for sound quality: Let's face it, the SQ of many radio stations is nowhere near audiophile standards. But on those stations that do care about SQ, I think the best FM - using a good antenna and high-end tuner - walks all over any Internet stream that I've ever heard.

To be fair, many people have never heard high-quality FM. They use a receiver or cheap tuner and the little free folded dipole that was packaged with it. In those instances, streaming probably is the better solution.
cleeds +1 
The only problem is good outdoor FM directional antennas are not made anymore!  
Remember too that many older tv antennas blocked fm, as it falls between channels 6 and 7 
yogiboy
The only problem is good outdoor FM directional antennas are not made anymore!
It is very difficult to find good outdoor FM antennas and
@jl35  is correct that many TV antennas have traps for FM. They are sometimes removable, but I think the best FM antennas are dedicated to that purpose.

There are some directional FM antennas still available. One is here (India-based, but they have a US distributor)  and Kathrein is another source. I think both of these are oriented towards the pro market (for translator use), but there are also DIY options, if you are so inclined.