Technics SB-2A
¥ 27,000 (1 unit, released in 1982)
Commentary
A compact 3-way speaker system with a honeycomb planar unit.
Equipped with 18 cm honeycomb planar woofer for low range, 5.2 cm honeycomb planar mid-range for middle range, and 2.8 cm honeycomb planar tweeter for high range.
The woofer uses a strong magnet with a diameter of 90 mm to achieve a high efficiency of 89dB/W. It also uses a polyimide-based voice coil bobbin and a polyamide-based voice coil to provide high input resistance.
By filling magnetic fluid in the magnetic gap of the tweeter, heat radiation effect is enhanced and high input resistance is achieved.
The enclosure uses a bass reflex type.
Model Rating
| Method | 3-Way, 3-Speaker, Bass reflex system, Bookshelf Type |
| Unit | For Low Band : 18 cm Flat Type For Middle Area : 5.2 cm Flat Type For High Frequency : 2.8 cm Flat Type |
| Impedance | 8 Ω |
| Allowable input | 100W(MUSIC) 50W(DIN) |
| Output sound pressure level | 89dB/W/m |
| Playback frequency band | 47 Hz to 35 kHz -16dB 59 Hz to 33 kHz -10dB |
| Crossover frequency | 2 kHz, 4.5 kHz |
| External dimensions | Width 223x Height 372x Depth 207 mm |
| Weight | 6.0kg |