Bowers & Wilkins CCM7.5 S2 2-way in-ceiling system
- Description
- Specification
- Details & Specifications(PDF)
Description
CCM7.5 S2
Designed for down-firing, in-ceiling use, CCM7.5 S2 can be used as the left, centre,
right and rear-channel rear speakers in a discreet home cinema system. Its configuration
includes a 25mm (1in) Carbon Dome tweeter and a 180mm (7in) Continuum cone mid/
bass cone angled to the mounting surface, allowing for easy direction of the whole array
towards the listener to ensure they hear the correct balance of sound. That way, dialogue
is crystal clear and special effects come across accurately. Thanks to Bowers & Wilkins
unique QuickDogsTM fixing method, installation is simple and if preferred, the supplied
round grille can be replaced with an optional, square grille.
Passive speakers must be powered by an amplifier. A passive speaker has positive and negative inputs which must be connected to the output of the amplifier with 2-core speaker cable (4-core is required for dual input single stereo speakers).
Measured in ohms, impedance is the resistance or load that a speaker puts on an amplifier. When multiple speakers are connected to an amplifier channel in parallel (doubled up on the terminals) this actually has the effect of reducing the total resistance (1/Rt = 1/R1 + 1/R2 …). Most amplifiers are rated at 4-16 ohms, so care should be taken to stay within this range. If the total impedance in parallel is less than 4 ohms then the speakers should be wired in series.
Speakers with the Music icon are suitable for stereo music systems. Single mono speakers which are packaged individually and indicated by the ‘Single’ icon must be purchased in multiples of two when connecting to a stereo amplifier.
Speakers with the Cinema icon are either dedicated products designed for multi-channel surround sound systems, or ones which we highly recommend for this purpose. It should be noted that the majority of speakers are suitable for use as surround and/or Atmos channels, so this icon does not apply to that application, and instead focuses on front speakers and subwoofers.
Description
- 2-way in-ceiling system
Appearance
- Visible Shape: Rectangular
- Visible Colour: White
Technical features
Carbon Dome tweeter
Continuum mid/bass
Dimensions
- Frame diameter:290mm (11.4in)
- Depth (behind surface):128mm (5in)
- Cut-out diameter:254mm (10in)
- Protrusion:8.5mm (0.33in)
- PMK:PMK C8
- Net weight:3.1kg (6.83 lb)
- Grille: White
- Back Box:BB 6C
- Square grille option:GR68SQ
Detailed Specifications
- Recommended amplifier power:25W – 150W into 8Ω on unclipped programme
- Compatible Amplifier (Watts RMS): 25 – 150
- Frequency range (-6dB): 25Hz – 33kHz
- Frequency Response -3dB:32Hz – 28kHz ±3dB
- Nominal Impedance (Ω): 8Ω (minimum 4.8Ω)
- Max Power High (Watts): 150
- Sensitivity: 90dB spl (2.83Vrms, 1m)
- Frequency Response -3dB:45Hz – 28kHz ±3dB
- Harmonic distortion (2nd and 3rd harmonics (90dB, 1m)
<1% 70Hz – 33kHz
<0.5% 100Hz – 28kHz
Driver Information
- 1x ø25mm (1in) Carbon Dome high-frequency
- 1x ø180mm (7in) Continuum cone mid/bass
