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Bowers & Wilkins CCM663 2-way in-ceiling system

Description

High--In-ceiling Kitchen.jpg

CCM663

The CCM663 is a true high performance ceiling-mount speaker. The tweeter
has a 25mm (1in) aluminium dome and its housing pivots for adjustable offaxis treble response. The bass/midrange driver’s die-cast chassis provides
extra rigidity which results in a cleaner, faster bass, and a three-position EQ
switch for a better off-axis response. The blue Aramid Fibre cone means
that the unit is well hidden behind the grille but still produces a remarkably
clear and dynamic sound. Incorporating QuickDogs™ and plug-and-play functionality it is quick and easy to install.

 

 

.tagged passive

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).

 

tagged imp-8

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.

tagged music

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.

Description
  • 2-way in-ceiling system
General Information
  • Output: Stereo Pair
  • Power Type: Passive
Application
  • Stereo Music
  • Home Cinema: Dolby Atmos Speakers, Surround Speakers
Appearance
  • Visible Shape: Circular
  • Visible Colour: White
Dimensions
  • Frame Diameter (mm): 240mm (9.5in)
  • Cutout Diameter (mm): 202mm (8in)
  • Depth behind surface (mm): 133mm (5.2in)
  • Protrusion:4mm (0.2 in)
  • Pre-mount Kit:C6
  • Back Box:6C
Detailed Specifications
  • Recommended Amp Power:25 – 130w
  • Frequency range(-6dB) (Hz): 45Hz – 50kHz
  • Frequency response (+/-3dB)(Hz):112Hz – 16kHz
  • Impedance Nominal (min): 8Ω (4.5Ω )
  • Sensitivity  SPL(2.83v,1m)(dB): 88dB
Driver Information
  • 1x ø25mm (1in) Nautilus™ swirl loaded aluminium
    dome tweeter
  • 1x ø150mm (6in) blue Aramid Fibre cone bass/midrange

 

Manual

Info Sheet

Drawing

 

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