Audio Database

The

DIATONE 2S-660
a price -- unknown

Description
 
It is the bass-reflex system floor type speaker developed in 1955 (Showa 30).
It is said that composition is a Woofer and a tweeter and became a prototype of 2S-305.

It is said that those days, evaluation of the carry top was obtained for the speaker and blind test in the world in the NHK technical research center by open viewing and listening by 3000 persons involved in sound.

Henceforth, change of 2S-205, 2S-206 type, and details is repeated, and 2S-305 type will be born in 1958.