Southwestern Bell CM860 installation instructions U N D a D V a N C E Prommercial CM660

S P E C I F I C A T I O N S

S O U N D A D V A N C E Prommercial CM660

A R C H I T E C T U R A L S P E C I F I C A T I O N S

The loudspeaker shall be of the two way type comprising a single flush mount enclosure containing one 6-1/2" (165mm) low frequency transducer and one coaxially mounted pivoting 3/4" (19mm) high frequency transducer.

Frequency response shall be 65Hz – 20KHz. Total power handling shall be 70 watts RMS and 140 watts program. Sensitivity measured with 2.83 volts input at 1 meter on axis averaged between

65Hz – 20KHz shall be 89dB. The unit shall be supplied with a line matching transformer suitable for 100 volt or 70 volt with a front mounted control allowing user selectable power taps of 60W, 30W, 15W, 7.5W and a 8 ohm bypass.

The back can shall be constructed from deep drawn steel. The baffle shall be injection molded using fire rated ABS that meets UL94V-0. Wire shall be terminated in an enclosed area on the rear of the back can. Strain relief shall be provided for wire. A support hook shall be provided on the rear of the back can to allow additional support when necessary.

The system shall include a support backing plate to reinforce the ceiling material and tile support rails which can all be installed from beneath the ceiling tile.

External dimensions shall be 9-3/4" (248mm) in diameter x 7-1/2" (190mm) mounting depth. The total enclosure shall weigh 8 lbs. (3.63 kg) per unit.

The loudspeaker shall be the Sound Advance Prommercial CM660. No other system shall be acceptable unless the above combined performance specifications are equaled or exceeded.

P R O D U C T S P E C I F I C A T I O N S

Tweeter	3/4" (19mm) Cloth dome
Woofer	6-1/2" (165mm) Polypropylene cone with a rubber surround
Frequency Range	65Hz – 20kHz ±10dB
Nominal Sensitivity	89dB 1w 1m
Nominal Coverage angle	120.0 degrees conical
Directivity Factor	5.9 averaged from 500 Hz to 4 kHz
Directivity Index	4.6 averaged from 500 Hz to 4 kHz
Transformer Taps	70 volt - 60W, 30W, 15W and 7.5W
	100 volt - 60W, 30W and 15W
Power Capacity	140 watts maximum program power
	70 watts continuous Pink noise
Enclosure	Back can: Deep drawn steel
	Baffle: ABS meets UL94V-0 fire rating
Grille	Paintable weather resistant aluminum
Termination	Locking removable quick connect with two input terminals and two loop
	through terminals
Speaker Dimensions	9-3/4" (248mm) x 7-1/2" (190mm)
Cut-out Dimensions	8-1/4" (210mm) diameter
Product Weight	8.0 lbs (3.63 kg) each
Shipping Weight	19.0 lbs (8.61 kg) per pair
Included Accessories	C - support plate
	2 international compatible tile support rails
	Cut-out template
	Paint plug
	Removable quick connect wire terminator
Certifications	NOT SUITABLE FOR AIR HANDLING SPACES
	UL 1480
	CE

7.67"

9.75"

8.21"

Transformer Tap Switch

70 volt - 60W, 30W, 15W, 7.5W

100 volt - 60W, 30W, 15W

8 Ohm

9.75"

	7.50"
6.71"

7