Dark Side of the Moon was exceptionally well engineered / produced / recorded. Following “Abbey Road”, it really put Alan Parsons on the map. It was one of the best demo records for rock music to sell audio gear to sound quality conscious kids with a bit of money, that one could hope for.
You think your woofer can do bass? Hah! Crank up the opening to “Time” and see what comes or blows loose. Do that on the ol’ “ESS Rock Monitors” with the grill off and you’d likely blow stuffing out the port and into the sales room! Many a speaker would just crack and / or pop.
But, this was not a “bass heavy” record. The sound was beautifully balanced.
Eye in the Sky, Alan Parsons Project, was very Pink Floyd-ish sounding................
Couldn’t you just use I.G.Y. by Donald Fagen?
Yes. it seemed like every hi fi store I visited was using it for a demo. I must admit that I also used it to demo my own system, before I seriously downsized and took up playing an instrument rather than spending my most of time listening to music made by others.
I only really listened to it when I found out about the Dark Side of the Rainbow.