To echo Skylab's comments regarding original packaging of "monster" equipment, I purchased a Pioneer SPEC-2 power amp new from the base exchange while serving in the USAF in Germany in 1979, and it was packaged similar to how he described the SX-1980. Form-fitting Styrofoam inside a double-walled box, which was then in turn inside another double-walled box. IIRC, the inside box was the standard brown box, and the outer box was white with the Pioneer logo in blue, and other lettering in black.
I can say that my equipment, which also included a Pioneer SPEC-1 preamp, Pioneer CT-F1000 cassette deck, Technics SL-1600 Mk2 turntable, and JBL L110 speakers were all shipped numerous times over the years in their original packaging with absolutely no damage. Granted, most of those shipments were along with my household goods, and not by UPS, USPS, or FedEx, who don't exercise the most care when transporting any items, let alone somewhat delicate high-end audio equipment.