JBL E120
¥ 59,000 (1 unit, around 1981)
¥ 67,000 (1 unit, around 1985)
Commentary
E-series 30 cm cone type wide range unit developed for musical instrument performance which boasts high efficiency, large allowable input and wide playback band.
E120 is used for lead guitars, rhythm guitars, and organs.
Large diameter voice coil is adopted.
There were 2 kinds of variations of 8 Ω and 16 Ω in the early period, but it seems to be only 8 Ω in the later period.
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Model Rating
| Type | 30 cm cone type full range unit |
| Impedance | 8 Ω / 16 Ω |
| Allowable input (continuous program) | 300W |
| Sound pressure level | 103dB/W/m |
| Frequency characteristic | 50 Hz to 6 kHz |
| fo | 60Hz |
| Voice Coil Diameter | 10.2cm |
| Weight of magnetic circuit | 8.5kg |
| Magnetic flux density | 13,500gauss |
| Enclosure volume | 30 ~ 85L |
| External dimensions | Diameter 311x Depth 115 mm |
| Weight (packed) | 9.5kg |
| Thiele-Small Parameters (8 Ω model) | |
| fs | 60Hz |
| Re | 6.3 Ω |
| Qts | 0.17 |
| Qms | 1.8 |
| Qes | 0.19 |
| Vas | 80 |
| SD | 0.051m2 |
| Xmax | 2.5mm |
| VD | 128.0cm2 |
| Le | 0.4mH |
| Η0(Half space) | 8.60% |
| Pe(max) (continuous sine wave input) | 150W |
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