Audio Database
SG-555PS
Commentary

Driver unit for middle range of SG 555 series.

Hard duralumin diaphragm is used for the diaphragm, and Mylar (FRP) is used for the edge.

The magnetic circuit uses a 130 mm φ x60mm alnico ring magnet using Permendur.

Model Rating
Method Driver Unit for Middle Range
Music power 5W
Impedance 8 Ω ~ 16 Ω
Sound pressure level 115dB
Frequency characteristic 100 Hz to 6 kHz
Total flux 600,000maxwell
Magnetic flux density 23,000gauss
Optimal crossover 200 Hz to 4 kHz
Gap form Permendur
Horn S-Series
Diaphragm FRP Edge
External dimensions Diameter 130x Depth 120 mm