JBL 2145
Released in 1971
¥ 77,400 (1 unit, around 1973)
¥ 65,000 (1 unit, around 1978)
Commentary
A 30 cm coaxial speaker unit that combines a 30 cm cone woofer and a 5 cm cone tweeter.
The woofer uses a 7.6 cm voice coil.
With a depth of 11.1 cm, it is thin and can be used for embedding on walls.
Built-in network with crossover frequency of 3 kHz.
Model Rating
| Type | 30 cm coaxial speaker unit |
| Aperture | Low pass : 30 cm cone type High pass : 5 cm cone type |
| Impedance | 8 Ω |
| Allowable input (continuous program) | 35W |
| Sound pressure level (new JIS) | 92dB |
| Playback frequency band | 40 Hz to 15 kHz |
| fo | 25Hz |
| Voice Coil Diameter | Low range : 7.6 cm High frequency : 1.6 cm |
| Magnet weight | Low range : 3.1 kg High frequency : 0.7 kg |
| Magnetic flux density | Low pass : 10,400 gauss High : 12,000 gauss |
| Enclosure internal volume | 57 ~ 85L |
| Depth | 11.1cm |
| Weight | 4.5kg |