JBL MI-631
¥ 165,000 (1 unit, around 1984)
Commentary
The MI series speaker system was developed based on the concept of "JBL sound for more players".
The MI 631 is designed as a stage monitor.
A 30 cm cone wide range unit MI-12 is mounted in the low range.
This unit employs technologies such as a low-distortion SFG magnetic circuit and a four layer voice coil.
A horn type unit using a wide-range driver and biradial horn is mounted in the high frequency range.
Titanium diaphragm is used for driver unit, and structure is combined with diamond suspension.
The enclosure features a slanted front baffle for stage monitoring and a bass-reflex internal structure.
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Model Rating
| Method | 2-Way, 2-Speaker, Bass Reflex System, Floor Type |
| Unit | For Low Band : 30 cm Cone Type (MI-12) For High Frequency : Horn Type |
| Playback frequency band | 60 Hz to 15 kHz -10dB |
| Directional (Horizontal x Vertical) | 90 ゜ x40 ゜ |
| Impedance | 8 Ω |
| Output sound pressure level | 100dB/W/m |
| Allowable input | 300W (continuous program) |
| Crossover frequency | 2kHz |
| External dimensions | Width 439x Height 349x Depth 535 mm |
| Weight | 21kg |
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