ONKYO D-33
¥ 39,800 (1 unit, around 1986)
Commentary
As a speaker for the digital age, this 3-way speaker system is based on pure cross carbon woofer.
A 22 cm cone type unit is used for the low range.
The diaphragm has a 2-layer structure consisting of pure cross carbon and pure carbon mat, which provides an excellent balance of strength, weight and internal loss, and improves resolution.
A 10 cm cone type unit has been adopted for the middle area.
Delta olefin refined cone is used for the diaphragm.
The high-frequency range is 2.5 cm. In order to solve the high-frequency resonance peak, which was a problem of the highly rigid tweeter, we have adopted a dome-type unit that cancels the high-frequency resonance.
Super hard titanium is used for the diaphragm.
By adopting a round baffle for the enclosure, diffraction phenomenon is suppressed, and by the technology which eliminates unnecessary vibration of the cabinet, the focus of sound image is made more vivid.
Model Rating
| Method | 3-way, 3-speaker, air suspension system Bookshelf 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 45000 Hz |
| Crossover frequency | 600 Hz, 3000 Hz |
| Max Input | 150W(EIAJ) |
| Impedance | 6 Ω |
| Output sound pressure | 91dB/W/m |
| Cabinet internal volume | 25L |
| External dimensions | Width 286x Height 520x Depth 260 mm |
| Weight | 11.5kg |