BOSE 6.2
¥ 119,600 (a set of two cars, around 1988)
Commentary
A speaker system specifically developed for stereo playback to provide a well-balanced stereo sound anywhere in the room.
In consideration of the fact that the directivity becomes stronger as the frequency becomes higher, acoustic directional control (adjusting the radiation pattern of the unit) is performed in accordance with the reproduction frequency to achieve the optimum sound spread in any sound range.
It is equipped with a 20 cm cone woofer for the low range and two 7.5 cm cone tweeters for the high range.
In order to improve linearity at low output power, an extremely light cone paper is used. At the same time, a computerized aluminum ribbon and edgewise winding are used for the voice coil. In pursuit of low resistance and high linearity, it is possible to drive efficiently even with a small magnetic circuit.
The woofer unit is mounted outside of the center of the front baffle plate so that a large reflection effect can be obtained inside the large baffle area, and the radiation power can be sufficiently increased to radiate sound over a wide area of the listening room.
This baffle area is tuned by the computer to help improve the 500 Hz to 1 kHz band where directivity begins to be affected.
Two tweeter units are fixed at different angles in front of the woofer, and the one facing inward is connected in the same phase as the woofer. The synergistic effect of the radiation power spreads the sound widely in the listening room.
The other external tweeter is connected to control the acoustic energy. In the 1 kHz to 5 kHz band, it works in phase opposite to the woofer. When the frequency exceeds 5 kHz, the output is cut by a bypass circuit.
The enclosure has a dual chamber structure that separates the interior into two rooms.
A subport is provided inside the enclosure and the amount of air passing through is controlled by the air resistance inside the main port in the front baffle. This effectively reduces the cone motion of the woofer while canceling the generation of standing waves, and efficiently converts the air inside the enclosure into a lower range.
In order to produce speakers with the theoretical quality, we control the design and production process using our own computer (Syncom III) developed for speaker production.
At the end of the design stage, Bose's hearing test staff, including artists and studio engineers, check the sound with their ears and provide feedback to the product.
There was a special speaker stand sold separately.
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Model Rating
| Method | 2-way / 2-speaker / bookshelf type |
| Units Used | For low band : 20 cm cone type For high pass : 2 x 7.5 cm cone type |
| Allowable Input (IEC) | 100W(rms) 150W(peak) |
| Impedance | 4 Ω |
| External dimensions | Width 508x Height 254x Depth 244 mm |
| Weight | 8.8kg |
| Sold Separately | Speaker Stand AS-1 (2 Set, ¥ 15,000) |