Preference of Denmark went bankrupt in 1989, but not before producing the coolest looking pyramid shaped speakers the world has ever seen... : r/vintageaudio
Pyramid 312 3 1/2" Dual Cone Speakers
Vintage Dick Sequerra Pyramid Metronome Model 7 Audiophile Speakers Original Stands | Reverb
Pyramid Shaped Boombox Stereo Speakers by Radio Shack Vintage - Etsy