Panasonic SB-MX50
¥ 50,000 (1 unit, around 1991)
Commentary
A speaker system that uses a MICA TMD diaphragm.
A 22 cm cone type woofer is installed in the low range.
The diaphragm is made of a natural material, mica, which is lightweight and has bending rigidity about three times that of aluminum. In addition, the diaphragm structure uses a unique TMD. The cone part and center cap part, which were separate pieces in the conventional cone, are integrated to increase rigidity, and the piston motion range is expanded to twice that of conventional cones.
The mid-range is equipped with 10 cm cone type mid-range.
Similar to the woofer, we use natural mica for the diaphragm and TMD for the structure of the diaphragm.
A 2.5 cm dome type tweeter using a mica diaphragm is mounted in the high frequency range.
The enclosure has a separate baffle structure.
In this structure, the baffle plates for the woofer and the mid-range / tweeter are divided to separate unwanted vibrations, and the rigidity of the unit mounting part is improved by changing the thickness of each plate.
Uses an anti-magnetic design.
Model Rating
| Method | 3-way, 3-speaker, bass reflex system, floor type, magnetic protection design |
| Units Used | For low band : 22 cm cone type For Medium Range : 10 cm Cone Type For high-pass : 2.5 cm dome type |
| Playback frequency band | 35 Hz to 45 kHz -16dB |
| Crossover frequency | 600 Hz, 3 kHz |
| Impedance | 6 Ω |
| Output sound pressure level | 89dB/W/m |
| Allowable input | 200W(MUSIC) 100W(DIN) |
| External dimensions | Width 270x Height 750x Depth 330 mm (w / Net) |
| Weight | 17.1kg |