Ad for Karlson speaker enclosures, which were probably the worst sounding designs ever successfully foisted onto … | Speaker design, Vintage speakers, Speaker plans
Pair of cabinet for 15" inch speaker, Karlson X-15, Onken, or else Wanted - US Audio Mart
High Efficiency Speaker Asylum
Some DIY speaker hobbyists were still building the oddball Karlson speaker, first published during the 1950s. The design made grand… | Акустическая система, Колонки