TEAC S-770
¥ 60,000 (a set of two cars, around 1993)
Commentary
A bookshelf type speaker system with symmetrical twin structure.
Two 13 cm cone type woofers are installed in the low range.
This unit combines a cone paper made from viscous beaten pulp and a slope ドウェーブ edge made from fabric. In addition, the surface is treated with a damping agent. The upper woofer uses a strong neodymium magnet for improved response and driving capability.
The voice coil uses a 4-layer middle voice coil for the upper woofer and a 6-layer long voice coil for the main woofer to ensure strict phase matching.
A 2.5 cm dome-shaped tweeter is installed in the high range.
This unit uses a ダンプドドーム diaphragm and a neodymium magnet for the magnetic circuit.
The front trim design also makes the music more clearly outlined.
In the network section, a hybrid high-pass filter consisting of air-core coils, special dipping electrolytic capacitors and film capacitors, and a low-pass filter with phase correction bypass circuit are adopted to create a more natural balance.
The enclosure uses a high-density particle board, and the side is 18.5 mm thick to reduce unnecessary vibration.
In addition, the rear duct and bass reflex system eliminates the interference of sound waves from the unit.
The speaker terminal is compatible with bi-wiring, and the terminal is a large terminal compatible with banana plug and also used for screw fixing.
Model Rating
Method | 2-Way, 3-Speaker, Bass Reflex System, Bookshelf Type ・ Magnetic protection design |
Unit | For low band : 13 cm cone x2 For high-pass : 2.5 cm dome type |
Playback frequency band | 60 Hz to 20 kHz |
Crossover frequency | 2.5kHz |
Impedance | 6 Ω |
Rated Input (EIAJ) | 50W |
Maximum Allowable Input (EIAJ) | 100W |
Output sound pressure level | 87dB/W/m |
Enclosure internal volume | Approximately 11.7 liters |
External dimensions | Width 189x Height 438x Depth 238 mm |
Weight | 6.8kg |