The quality of CM Series drive units has made it possible to use minimalist crossovers throughout the whole range. The resulting gentle transition between drivers avoids the unnaturally rapid changes in dispersion that bedevil more complex designs, while the high quality components, carefully chosen after exhaustive listening tests, ensure that as little as possible gets between you and the sound of the original recording.
All CM Series speakers come with aluminium driver trims. Grilles attach magnetically, so there are no unsightly grille-mounting features to spoil the clean lines of the speaker’s façade. For the finish, you can choose either one of two real-wood veneers in Rosenut or Wengé, or a highly polished gloss black.
Specifications
| Woven Kevlar | Yes |
| Crossover Tuning | Yes |
| Nautilus Tapering Tube | Yes |
| Flowport | Yes |
| FST | Yes |
| Technical features | Nautilus™ tube loaded aluminium dome tweeter Kevlar® brand fibre cone FST midrange Flowport™ |
| Description | 3-way vented-box system |
| Drive units | 1x ø25mm (1 in) aluminium dome high-frequency 1x ø150mm (6 in) woven Kevlar® cone FST midrange 2x ø165mm (6.5 in) paper/Kevlar® cone bass |
| Frequency range | -6dB at 30Hz and 50kHz |
| Frequency response | 56Hz - 22kHz ±3dB on reference axis |
| Dispersion | Within 2dB of reference response |
| Horizontal: | over 60º arc |
| Vertical: | over 10º arc |
| Sensitivity | 89dB spl (2.83V, 1m) |
| Harmonic distortion | 2nd and 3rd harmonics (90dB, 1m) <1% 90Hz - 22kHz <0.5% 120Hz - 20kHz |
| Nominal impedance | 8 Ohm (minimum 3.0 Ohm) |
| Crossover frequencies | 350Hz, 4kHz |
| Crossover Filters | Bass unit 3rd order low pass Midrange 2nd order high pass, 1st order low pass Tweeter 1st order high pass |
| Recommended amplifier power | 30W - 200W into 8 ohms on unclipped programme |
| Max. recommended cable impedance | 0.1 Ohm |
| Height: | 990mm (39 in) 1025mm (40.4 in) with plinth |
| Width: | 200mm (7.9 in) cabinet only, 320mm (12.6 in) over plinth |
| Depth: | 321mm (12.8 in) (including grille and terminals), 370mm (14.6 in) over plinth |
| Net weight | 26.6kg (58.5 lb) |
| Cabinet - Real Wood Veneers | Grille |
| Wengé | Black |
| Rosenut | Black |
| Gloss Black | Black |