Architect's and engineer's specifications – Altec Lansing 414-8C User Manual
Page 2
Attention! The text in this document has been recognized automatically. To view the original document, you can use the "Original mode".
SPECIFICATIONS
Power Rating:
Frequency Response:
Pressure Sensitivity:
Impedance:
Nominal Free-Air
Cone Resonance:
Voice Coil:
50 watts of continuous
pink noise
Uniform, 30-4000 Hz
96 dB SPL at 4' when
installed in ALTEC 614D
enclosure and measured on
axis with 1 watt input of
pink noise band-limited
from 500-1500 Hz and
calculated to 4' equivalent
(Ref.;0dB =
0.0002 dyne/cm^)
8 ohms
30 Hz
3” diameter, edge-wound
copper ribbon
Magnet:
Alnico, 1.8 pounds,
9,000 gauss flux density
Construction—
Frame (Basket):
Structurally reinforced
die-cast aluminum
Cone:
Molded fiber
Cone Suspension:
High-compliance cloth
surround with mechanica
resistance
Dimensions:
12)4" (31.1 cm) diameter
5Vt"
(14.3 cm) depth
Weight:
Mounting Data—
15 pounds (6.8 kg)
Baffle Opening:
1lV4" (28.3 cm) front or
rear mounting
Mounting Bolt
Centers:
4 bolts equally spaced on
11?f»" (28.5 cm) diameter
circle
A R C H IT E C T 'S A N D E N G IN E E R 'S S P E C IF IC A T IO N S
The
low-frequency
loudspeaker
shall
meet
the
following
criteria.
Frame,
structurally
reinforced
die-cast aluminum, rigid enough to permit front
or rear mounting. Voice coil, 3" diameter of
edge-wound copper ribbon. Flux density, 9,000
gauss. Magnet weight, 1.8 pounds. Power rating,
50 watts of continuous pink noise. Frequency
response, uniform from 30-4000 Hz. Pressure
sensitivity, 96 dB SPL at 4' when measured on
axis with 1 watt input of pink noise band-limited
from 500-1500 Hz. Impedance, 8 ohms, Nominal
free-air
cone
resonance,
30
Hz.
Dimensions,
12V4" diameter X 5Vs" deep. Weight, 15 pounds.
The
low-frequency
loudspeaker
shall
be
the
ALTEC Model 414-8C.-
SOUND PRODUCTS DIVISION
1515 SOUTH MANCHESTER AVENUE, ANAHEIM, CALIFORNIA 92803
LITHO IN U.S.A. 277-2.5K
AL-1851-2