I just listened to a quality set of speakers, a reel to reel, and a reel to reel tape, all from the early 1970s, it was superior to my expensive modern system.
Hmmm... a GOOD reel to reel (Eg Revox) from that era would run you almost 1 to 2 grand in 1970 dollars. A decent 1800’ 7” reel from Ampex or 3M would be another 7 or 8 apiece, the amplifier would be good for $200+, the speakers are probably where you get the great sound, and they can cost as much as you care to pay, then or now. We are talking several months salary for regular guy. Of course, you have gotten 40 years out of it, so I won’t argue with you on value, though open reel is fussy enough on threading that I’d rather not bother. I AM amazed at the many modern stereos that do not see fit to include a balance control.