Audio Database
SG-370BL
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