Bowers and Wilkins CCM-646-S Brochure

CCM 646S

See nothing, hear everything

One ceiling speaker for stereo. CCM 646S is a dual, 2-way ceiling speaker featuring

a 165mm (6½ in) twin voice coil, woven glass fibre cone bass/midrange driver and

two offset Ultra-12 tweeters in a chassis incorporating simple and effective swing-

out dog fixings. The twin voice coil bass/midrange driver and tweeters allow a stereo

signal to be combined to facilitate the use of just one ceiling speaker in a single

installation area without the loss of one audio channel. The CCM 646S also includes

three-way switchable high frequency equalisation.

Technical Specification

Techn ic al f ea tu res

Descr ip ti on

Drive units

Fre qu en cy r an ge

Fre qu en cy respon se

Sensi ti vi ty

Nomin al imped an ce

Cro ss ov er f reque nc y

Three-position EQ switch Two adjustable offset tilt ultra-12 t Swing-out dog fixings

2-way dual channel in-ceiling speaker system

2x ø25mm (1 in) ultra-12 high-frequency 1x ø165mm (6.5 in) woven fibreglass mid/bass

-6dB at 40Hz and 22kHz

50Hz-20kHz ±3dB on reference axis

86dB spl (2.83V, 1m)

8Ω (minimum 3.6Ω)

3.2kHz

weeters

Recom me nd ed

Frame size

Cut-out size

Min depth req

Net weight

Finish

Accessories

am pl ifier power

Ω

20W - 130W continuous into 8

Diameter: 232mm (9.1 in)

Diameter: 205mm (8.1 in)

103mm (4.1 in) from ceiling surface

1.7kg (3.8lb)

Semi-matt white suitable for customising or pre-painting (paint mask included)

Pre-mount kit for new construction (PMK c65)

on unclipped programme

CCM 646S

Architectual and Engineering Specifications

The loudspeaker system shall be of the dual-amped 2-way type comprising of a single flush mountable circular

enclosure containing one, twin voice coil, 6.5in bass-mid driver with woven glass fibre cone and two, off set mounted,

1in Ultra 12 tweeter, with 3 position EQ switch.

Performance specifications of a typical production unit shall meet or exceed the following:

Frequency response shall be 50 – 20kHz ± 3dB. Nominal impedance shall be 8 Ohm. Total power handling shall be

130W continuous into 8 Ohm on unclipped programme. Sensitivity measured with 2.83V at 1-meter distance on axis,

mean averaged between 50 – 20kHz shall be 86dB.

External dimensions shall be 232mm (9.1in) diameter x 107mm (4.2in) depth. Total weight shall be 1.6kg (3.5lb).

The loudspeaker system shall be the B&W CCM 646S. No other system shall be acceptable unless the above combined

performance are equalled or exceeded.

Polar Response Horizontal

Dimensions

Polar Response Vertical Frequency Response

B&W Group Ltd Dale Road Worthing West Sussex BN11 2BH England

T +4 4 (0 ) 19 03 2 21800 F +4 4 (0 ) 19 03 2 21801 info@ bwgrou p.com www.bws peake rs.co m

UK G roup (UK Sales) T +4 4 19 03 2 21 5 00 E uk sales @bwgro up.co m

B&W Group Nort h America T +1 978 664 287 0 E ma rketi ng@bw groupu sa.co m

B&W Group Asia Ltd T +8 52 2 869 991 6 E sh owroom @bwgroup.hk