GOTO UNIT SG-370BL
¥ 320,000 (1 unit, after February 1978)
¥ 350,000 (1 unit, after May 1979))
Commentary
Driver unit for mid and high frequency band using beryllium diaphragm.
Beryllium diaphragm is used for the diaphragm.
Beryllium is a very light element and has more than twice the hardness of titanium. However, it is unstable as it is, and toxic gas is generated when the crystal is broken. To improve this, the Goto Unit uses a molded powder of beryllium oxide beryllium oxide, which is specially treated to form a dome shape.
Uses Mylar (FRP) edge for the edge part.
The magnetic circuit uses a 140 mm φ magnet that uses a large amount of permendur.
Model Rating
Method | Driver unit for middle and high range |
Music power | 5W |
Impedance | 8 Ω ~ 16 Ω |
Output sound pressure level | 116dB |
Playback frequency band | 400 Hz to 20 kHz |
Total flux | 1,100,000maxwell |
Magnetic flux density | 24,000gauss |
Optimal crossover | 500 Hz to 5 kHz |
Gap system | Permendur |
Horn | S-Series |
Diaphragm | Beryllium Dome, Mylar FRP Edge |
External dimensions | Diameter 140x Depth 130 mm |