Preference of Denmark went bankrupt in 1989, but not before producing the coolest looking pyramid shaped speakers the world has ever seen... : r/vintageaudio
6.5 in. 400-Watt Car Audio Midrange/Mid Bass Poly Woofers Speakers 2 x W64 - The Home Depot
pyramid speakers. 4 inch set in box model 4477 180 watts also included 2 speaker | eBay
DARK PYRAMID 2.1CH USB HI-FI SPEAKER SYSTEM, COMPUTER,PC, IPOD,PHONE, LAPTOP D8U | eBay
Pyramid 3-Way Indoor Outdoor Speaker System - 3.5 Inch 200W Pair of Mini Box Ceiling Wall Mount Speakers w/1" Tweeter, 3.25" Woofer, 1.75” Midrange - Home Theater Entertainment, PA System - 2022SX
Speaker Builder: The Pyramids By Rudiger Geppinger | audioXpress
Pyramid 300 Watts 3-Way Mini Box Speaker System 2060 | Zoro
Pyramid Shaped Boombox Stereo Speakers by Radio Shack Vintage - Etsy