Altec Lansing 730C User Manual

730C

SOUND PRODUCTS DIVISION

DRIVER LOUDSPEAKER

DESCRIPTION

The ALTEC 730C Driver Loudspeaker is designed
to provide maximum performance at minimum
cost. It may be used with ALTEC multicellular
horns or the 31A and 511A sectoral horns, and
will provide smooth response from 300 Hz to
8000 Hz. The 730C can handle up to 50 watts,
but requires less wattage from its driving ampli
fier due to its high efficiency.

The 730C is equipped with a removable, heavy­duty, weatherproof housing. Threaded holes

are provided inside the housing for mounting
an appropriate ALTEC 70V line transformer. Like
all ALTEC public address driver loudspeakers,
the diaphragm and voice coil assembly can be
replaced in the field by untrained personnel
without the use of special tools.

The ALTEC 730C is ideally suited for outdoor,
and many indoor sound reinforcement and
announcing systems, where proven ruggedness
and reliability are a requisite.

SPECIFICATIONS
Power:

50 watts (based upon
continuous operation
with pink noise above
500 Hz with appropriate
protective network).

Frequency Response: 300 to 8000 Hz Pressure Sensitivity:

105 dB SPL with 1 watt

input of pink noise from
500 Hz to 3000 Hz mea
sured at 4' on axis from

mouth of 511A horn.

Equal to EIA rating of 58

dB SPL with 1 milliwatt

input at 30' (Ref.: 0.0002

dyne/cm^). See horn data

sheets.

122 dB SPL with 50 watts

input of pink noise from

5(X) Hz to 3000 Hz mea-

sured at 4' on axis from

mouth of 511A horn.

Impedance: 8 ohms

Voice Coil Diameter: 2"

Application:

Protection:

Magnet Weight: Flux Density: Dimensions:

Weight:
Finish:
Accessories:

Weatherproof construc
tion for outdoor use

Altec N500or N800 series

Dividing Networks, or
Altec 15045A 70V trans
former. (Low frequencies

should be attenuated a

minimum of 12 dB per

octave below 300 Hz
when used at or near

maximum power.)

3V2 lbs.

13,000 gauss

Diameter 5Vs" (14.92 cm)
Height 7" (17.78 cm)

5 pounds (2.27 kg)
Gray
See Altec catalog sheets

for Multicellular Horns,

Sectoral Horns, Dividing

Networks and 70V & 25V
Transformers.

ARCHITECT'S AND ENGINEER'S SPECIFICATIONS

The HE driver loudspeaker shall meet the following performance criteria. Power rating, 50 watts
pink noise above 500 Hz. Frequency response, uniform from 300 Hz to 8000 Hz. Pressure sensitiv

ity; 105 dB SPL with 1 watt input of pink noise from 500 Hz to 3000 Hz when measured on axis 4'
from mouth of 511A horn, 122 dB SPL with 50 watts input of pink noise from 500 Hz to 3000 Hz
when measured on axis 4' from mouth of 511A horn (Ref.: 0.0002 dyne/cm^). Impedance, 8 ohms.

Dimensions, b’U" diameter by 7" high. Weight, 5 pounds. Color, gray.
The HF driver loudspeaker shall be the ALTEC Model 730C.

LITHO IN U.S.A. CP-575-5K

1515 SOUTH MANCHESTER AVENUE, ANAHEIM, CALIFORNIA 92803

AL-1428-6