Southwestern Bell CM660 U n d a d v a n c e Prommercial CM860, Specification S

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 CM860

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 8" (203mm) low frequency transducer and one coaxially mounted 1" (25mm) pivoting high frequency transducer.

Frequency response shall be 50Hz – 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

50Hz – 20kHz shall be 90dB. 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 12" (305mm) in diameter x 9-1/2" (241mm) mounting depth. The total enclosure shall weigh 11 lbs.

(4.99 kg) per unit.

The loudspeaker shall be the Sound Advance Prommercial CM860. 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	1" (25mm) Pivoting Cloth dome
Woofer	8" (203mm) Polypropylene cone with a rubber surround
Frequency Range	50Hz – 20kHz ±10dB
Nominal Sensitivity	90dB 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	12" (305mm) x 9-1/2" (241mm)
Cut-out Dimensions	10" (254mm) diameter
Product Weight	11.0 lbs (4.99 kg) each
Shipping Weight	25.0 lbs (11.35 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	UL 2043
	UL 1480
	CE

9.47"

12.00"

9.95"

Transformer Tap Switch

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

100 volt - 60W, 30W, 15W

8 Ohm

12.00"

	9.31"
8.48"

6