JBL 4847
¥ 360,000 (1 unit, around 1988)
Commentary
This is a speaker system for the ultra low band of the concert series.
The 4847 is a woofer system developed as part of a full-range multi-way suspended speaker array assembly.
The unit is equipped with 2225H which is a 38 cm cone type woofer.
The enclosure uses a bass reflex system tuned to 40 Hz.
The top, bottom and sides have been cut into 15 ° tapers for a variety of layouts within the array.
In addition, the surface has a glass fiber coating with excellent durability and water resistance.
8 pieces of embedded metal fittings for flying are equipped as standard.
The connector is equipped with ITT Canon EP-8 type male and female (bi-amplifier specification).
The Concert Series included a wide range of specialized options, including a carrying load case and various speaker mounting brackets.
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Model Rating
| Method | 1-Way, 1-Speaker, Bass Reflex System, Floor Type |
| Units Used | Low Band : 38 cm Cone Type (2225H) |
| Frequency characteristic | 35 Hz to 3 kHz -10dB 40 Hz to 1.2 kHz ± 3 dB |
| Impedance | 8 Ω |
| Allowed Inputs (continuous) | 400W |
| Maximum output sound pressure level (continuous) | 121dB/m |
| External dimensions | Width 750x Height 630x Depth 540 mm |
| Weight | 43kg |