Crossover from Technics SB-5000A Speaker Crossover Only Tested Working | eBay
Technics SB-5000, Well I'll be a monkey's uncle! | Audiokarma Home Audio Stereo Discussion Forums
Technics SB-6000 (1976-79), one of the coolest designs I've encountered! They are really pleasant and easy on the ears whilst still containing rich detail. Warm sound and good bass with the 12"! :
🎧Technics National SB 5000 speaker system Revox B750 by Studer amplifier. - YouTube