SONY SS-5050II
¥ 52,000 (1 unit, around 1975)
Commentary
This is a 3-way speaker system that uses Ca-Aqua RBOCON as a diaphragm.
A 30 cm cone type unit is used for the low range.
It is made of CARBOCON mixed with carbon fibers. It has high rigidity, low resonance sharpness, reduced split vibration and harsh peak sound at upper limit frequencies, and made it possible to widen the band.
In addition, the voice coil is wound around a 50 mm bobbin and heat-resistant treatment is applied to improve the input resistance. In addition, a low-distortion magnetic circuit using a 120 mm diameter magnet is adopted for the magnetic circuit, and the air gap magnetic flux density of 11,000 gauss is obtained.
A 3.5 cm dome type unit is adopted for the middle area.
A dome-shaped diaphragm is used for the diaphragm, which is made by mixing special fibers with viscoelastic resin and coating special damping agent after molding to improve the damping effect of the diaphragm itself.
A magnet with a diameter of 110 mm is used for the magnetic circuit, and the air gap magnetic flux density is 13,000 gauss.
A 2.5 cm dome type unit is adopted for the high frequency band.
Hard aluminum alloy foil is used for the diaphragm, and high magnetic flux density of 15,000 gauss is obtained for the magnetic circuit.
It employs a low-distortion magnetic circuit that effectively reduces distortion. Together with the long travel voice coil drive system, it improves linearity at large amplitude in the low frequency range and current distortion in the middle frequency range.
By mixing carbon fiber radially into the edge, deformation and division vibration of the roll edge are suppressed.
Model Rating
| Method | 3-Way, 3-Speaker, Airtight Type, Bookshelf Type |
| Unit | For low band : 30 cm cone type For Middle Area : 3.5 cm Dome Type For high-pass : 2.5 cm dome type |
| Effective frequency band | 40 Hz to 20000 Hz |
| Output sound pressure level | 91dB/W/m |
| Impedance | 8 Ω |
| Maximum allowable input | 80W |
| Crossover frequency | 800 Hz, 8000 Hz |
| External dimensions | Width 365x Height 630x Depth 318 mm |
| Weight | 20.5kg |