My stereo is from 1979. For the last 30 years mainstream audio equipment has been in a race to the bottom on BOM cost and build quality. A well made stereo receiver from 1975-1985 will, when paired with the right speakers, greatly outperform the majority of modern listening devices.
A friend of mine is still using a ~1976 Pioneer receiver I "loaned" her ages ago when I got a receiver I could use in a home theater setup. My supposedly high-end Sony receiver died and then died again 30 days post-repair. And I'm on my second receiver after that.
(She's also using speakers of mine of the same vintage that I didn't need after I upgraded.)
People forgot about the quality of those stereo systems. Each time I go back to my family house, the first thing I do is to sit for a couple of hours in front of the system my dad bought in 88. Still works perfectly.
No modern setup comes close! I ended up buying a vintage Technics set for my flat, for the cost of a couple of bluetooth amplified speaker. Not great but miles away from any system I could buy new!
Not only the quality of the system itself, people forgot the documentation! I still use my father's TEAC AX-55 MkII amplifier: the service manual includes full PCB printouts, block diagrams, schematics, and component list with all the part numbers and description: http://www.vintageshifi.com/repertoire-pdf/pdf/telecharge.ph...
In the rare case something fails, you can literally keep rebuilding the damn thing just like Theseus' ship. This level of documentation is just completely alien for today's consumer electronics.
A ton. I have a 1980s Pioneer receiver with a CC Audio hooked up to it and it's incredible [1]. I love the silverface/wood look and the knobs/switches feel great, so much better than modern receivers. I'm thinking of getting another CCA for my mom's 70's Sansui system.
Yup, my parents had many in wall / ceiling speakers wired up to a receiver that they sort of forgot about because the system only received input from a 30 pin ipod dock and no one ever bothered to figure out how the receiver was configured. I pulled that interface out and replaced it with a chromecast audio and it blew their minds. It was probably the biggest ROI I've ever gotten out of any tech project I've ever done for them.
I'm very sad they are discontinuing this product. I was actually about to buy one for my new apartment. It looks like they are sold out everywhere already :(
This was one of Apple's great inventions, it became widespread in hotels, every base station used it - so having achieved massive adoption they obsoleted it.
Couple it with this: https://www.amazon.com/dp/B0071HZ5LE/ and you've got a great low profile audio system that anybody can connect to with their phone for around $50. We've got that pair in our gym in the basement.