OVERVIEW
A Special Edition Series bookshelf speaker system.
A 16.5 cm cone type woofer is installed in the low range.
The diaphragm of this unit is made of Kevlar composite cone, which attenuates standing waves by making the movement of refracted sound waves through the material uneven, minimizing the coloring of sound.
In addition, a center equalizer is installed in the center of the voice coil instead of a dust cap to improve the diffusivity in mid-range and high-range areas connection between drive units smoother.
A 2.6 cm dome-shaped tweeter is installed in the high range.
Metal diaphragm is used for vibration plate, and cooling effect is enhanced by magnetic fluid.
The network section is arranged on separate boards for woofer and tweeter to eliminate mutual interference between each circuit.
In the unit layout, the tweeter section is independent structure, and the woofer and tweeter are arranged in linear phase so that sound can reach simultaneously.
The enclosure uses a bass reflex system with rounded corners to minimize the diffraction of sound waves.
There were 3 kinds of variations such as red ash, black ash and cherry for finishing of the exterior.
A speaker terminal for bi-wiring and bi-amplifier connections is used.
The stand listed in the catalog is not a B & W product and is not sold in Japan.
In Japan, the speaker stand SA-CDM made by Sound Anchor Co. was recommended.
SPECIFICATIONS
| Method | 2-Way, 2-Speaker, Bass Reflex System, Bookshelf Type |
| Unit | For low band : 16.5 cm cone type For high-pass : 2.6 cm dome type |
| Frequency characteristic | 46 Hz to 30 kHz -6dB |
| Frequency response | 58 Hz ~ 20 kHz ± 3 dB (free field) |
| Directional | Longitudinal deviation ± 2dB10 degrees or more Lateral deviation ± 2dB40 degrees or more |
| Output sound pressure level | 88dB/2.83V/m |
| Distortion factor | Second and third harmonic distortion factor : less than 1% (100 Hz to 20 kHz, 90 dB, 1m) |
| Nominal impedance | 8 Ω |
| Crossover frequency | 3kHz |
| Compatible amplifier output | 30W ~ 120W |
| External dimensions | Width 220x Height 370x Depth 274 mm |
| Weight | 8.5kg |
| Sold separately : Sound Anchor's Stand SA-CDM (1 unit, ¥ 23,000) | |
| External dimensions | Width 317x Height 615x Depth 310 mm |
| Weight | 10.2kg |
https://www.manualslib.com/manual/19899/Bowers-And-Wilkins-Cdm1.html#manual
