JBL D123
Released in 1955
¥ 40,100 (1 unit, around 1974)
Commentary
This 30-cm cone type full-range speaker unit is designed to be able to demonstrate its performance even in a 100-liter enclosure.
Large diameter ribbon voice coil of 8 cm diameter and large magnet are adopted.
It is designed to be thin with a depth of 10 cm, and can be used in various ways such as attaching it to a wall.
Model Rating
| Type | 30 cm cone type full range unit |
| Allowable input | 50W (continuous program) |
| Impedance | 8 Ω |
| Directional | 90 ° |
| Sound pressure level (new JIS) | 98dB(1kHz) |
| Voice Coil Diameter | 7.6cm |
| Magnet Assembly Weight | 3.1kg |
| Magnetic flux density | 10,400gauss |
| Recommended enclosure volume | 56L ~ 141L |
| Depth | 102mm |
| Weight (packed) | 5kg |