JBL 2121
¥ 36,000 (1 unit, around 1978)
Commentary
25 cm cone type mid-woofer developed for the middle and low range of 4-way system.
2121 was developed for developed for the 4343.
When used, it is mounted in a small enclosed enclosure.
Model Rating
| Type | 25 cm Cone Woofer |
| Impedance | 8 Ω |
| Allowable input (continuous program) | 75W |
| Sound pressure level (new JIS) | 95dB |
| Frequency band | 250 Hz to 2 kHz |
| fo | 35Hz |
| Crossover frequency | 250 Hz, 1.5 kHz |
| Voice Coil Diameter / Material | 7.6 cm / Copper |
| Weight of magnetic circuit | 3kg |
| Magnetic flux density | 10,500Gauss |
| Enclosure volume | 11.3L or More |
| Depth | 11.5cm |
| Weight | 3.7kg |