SANSUI J33
¥ 28,500 (1 unit, around 1979)
Commentary
This is a piano finish speaker system with a compact size and high sound quality incorporating a design that went back to the origin of the bookshelf.
A 21 cm cone type woofer using a sheet, themed and cone is installed in the low range.
This sheet, seamed, and cone is made of a highly uniform material with less unevenness in density and thickness. The shape of the curved cone gives it strength. The magnetic circuit using a large ferrite magnet achieves a magnetic flux density of 9,500 gauss, and the combination with a 30 φ voice coil realizes high efficiency and high input resistance.
A 2.54 cm soft dome type tweeter is installed in the high range.
The diaphragm is made of polyester fiber coated with acrylic damping agent by a special method. It has excellent directivity characteristic of the dome type and absorbs harmful resonance appropriately.
The enclosure uses a high-density, high-density particle board with a three way locking structure for a sealed structure. The units are arranged so that the tweeter comes outside the baffle, and a symmetrical design for improved orientation.
Piano mirror surface finish is used for exterior finishing. Starting with surface preparation (polishing), two undercoats, grinding, three overcoats, grinding, and wax-buff finish, a beautiful finish is achieved.
Model Rating
Type | 2-Way, 2-Speaker, Airtight Type, Bookshelf Type |
Units Used | For low band : 21 cm cone type For high-pass : 2.54 cm dome type |
Maximum allowable input | 60W |
Impedance | 6 Ω |
Output sound pressure level | 90dB/W/m |
Frequency characteristic | 45 Hz to 20 kHz |
Crossover frequency | 2kHz |
Network | 2-way, 12dB/oct, LC Parallel Type |
External dimensions | Width 240x Height 410x Depth 200 mm |
Weight | 6.9kg |