Or "big" sounding symphonic albums that don't sound too thin with good bottom end.
Stuff that I can show off my system to friends and they go "wow".
If you are equipped to play CDs, try to find the recording of Dvorak's "New World" symphony (Symphony No. 9) on the Chesky label, identified as Chesky CD31, Jascha Horenstein conducting the Royal Philharmonic Orchestra. It is out of print, but is probably findable in used condition on eBay and possibly at Amazon.
When your friends have raised their jaws back to the normal position after listening to it, they will fall again when you tell them that it was recorded in 1962!
Regards,
-- Al