ALTEC LANSING Milestone 405
¥ 56,000 (1 unit, around 1999)
Commentary
Speaker system using full-range unit 405-8H.
The 405 to 8 Hz is a 4 inch (10 cm) full-range unit of the 405 Series. The high output sound pressure of 90dB/W/m is achieved by the magnetic circuit using urethane foam edge, cast frame and large magnet in the simple configuration of single cone / full range.
In order to take advantage of the mid-range of 405 to 8 h, it is designed so that the unit and the amplifier can be connected directly only by the connector without any intervening passive network circuit for adjusting the characteristics.
The enclosure is a bass-reflex structure using 12 mm thick Itaya amicorum maple laminate, and the exterior is covered with wood and layers.
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Model Rating
| Method | 1-Way, 1-Speaker, Basref System, Bookshelf Type |
| Unit | For All Bands : 4 inch Cone Type (405-8H) |
| Impedance | 8 Ω |
| Playback frequency band | 55 Hz to 15 kHz |
| Sound pressure level | 90dB-SPL/W/m |
| Allowable input | 15W AES / + 6 dB crest factor 60W (peak) |
| External dimensions | Width 230x Height 380x Depth 220 mm |
| Weight | 5.0kg |