Technics SB-T40

The SB-T40 (also SB-T40K) was a 90-watt honeycomb disc speaker system manufactured by the Technics Corporation of Japan. It is a 3-way 3-speaker system with 22 cm honeycomb disc woofer, 2.8 cm honeycomb disc tweeter, and 5.2 cm honeycomb disc midrange. In this service manual you can get detailed specifications including, crossover circuit diagram, and parts list.