Altec Lansing 416-8B User Manual

DESCRIPTION

The ALTEC 416-8B is a 16" low-frequency loud
speaker of professional quality that is ideal for

use in wide-range sound reinforcement and
high-fidelity systems. Performance is charac

terized by smooth response with extraordinary

linearity.

A structurally reinforced frame, rigid enough to
permit front or rear mounting, supports a heavy
permanent magnet providing high flux density.

The low-mass voice coil is made from edge­wound copper ribbon to provide more turns of
wire in the voice-coil gap. The cone suspension

has exceptionally high compliance for accurate
reproduction of low frequencies.

The 416-8B loudspeaker complements a wide
selection of ALTEC-designed enclosures.

416-8B LOW FREQUENCY

LOUDSPEAKER

SPECIFICATIONS

Frame Diameter: 16"
*Power Rating:

Frequency Response (Hz):
Pressure Sensitivity

(1 watt (E^/Z min) with
pink noise band-limited

100-1000 Hz):
Maximum Sound

Pressure (Full power
(E^/Z min) with pink
noise band-limited

100-1000 Hz):
Impedance: 8 ohms mínimum
Maximum Excursion

Before Damage
(Peak to Peak):

Voice Coil Diameter: 3 in.
Thiele-Small Parameters —

Free-Air Resonance (fj): 24 Hz
Equivalent Volume

Compliance (V^s):
Total Q(Qts):
Electrical Q (Qes):
Mechanical Q (Qms)'
Reference Efficiency {t|o)’

D.C. Resistance (Re):
Peak Linear

Displacement
Peak Linear Volume

Displacement (Vp):
Effective Surface Area

of Driver Diagram (Sp):

Additional Parameters —

Effective Piston
Diameter:

Voice Coil inductance: 2.5 m H.
BL Factor: 16.0
Magnet Type: Alnico
Magnet Weight: 39 oz.
Flux Density:

Mounting Information —

Baffle Opening
Diameter:

Mounting Bolt
Circle Diameter:

Loudspeaker Depth
(front mounting):

Loudspeaker Depth
(rear mounting):

Weight:

*AES power rating measured E^/Z min where E = 25V, Z = 8il, band­limited 40-400 Hz.

(AES Recommended Practice Specification of Loudspeaker Compo
nents Used in Professional Audio and Sound Reinforcement. See j.

Audio Eng. Soc., Vol. 30, No. 3,1982 March.)

150 watts program
75 watts continuoL
noise band-limitec

30-1600

98 dB at 1 meter

117 dB at 1 meter

.70in.

22.9
.23
.24

6.4

3.6%

6.5 ohms

0.13 in.

16.6 in.^

128 in.^

12.75 in.

1.1 Tesla

141/8" (35.87 cm)

15" (38.1 cm)

61/4" (15.88 cm)

7" (17.78 cm)

17.5 Ibs (7.94 kg)

¿J

LOUDSPEAKER MOUNTING DIMENSIONS

Loudspeaker Diameter: 16" (40.64 cm)

(A)

Depth When Front Mounted: 6V4"

(Bp)

(15.88 cm)
Depth When Rear Mounted: 7" (17.78 cm)

(Br)

ARCHITECT'S AND ENGINEER'S SPECIFICATIONS

(C) Baffle Opening Diameter: 14ys" (35.87 cm)
(D) Bolt Circle Diameter: 15" (38.1 cm)
(E) Bolt Hole Slots: Va" (0.64 cm) x W (2.02

cm); 8 slots spaced 45° apart.

The low-frequency loudspeaker shall meet the
following criteria. AES power rating up to 75
watts of band-limited pink noise (40-400 Hz).

Frequency response, uniform from 30-1600 Hz

when mounted in a suitable enclosure. Pressure

Sensitivity, 98 dB SPL when measured at 1 meter
on axis from front edge of the system with one

watt of band limited pink noise from 100-1000 Hz

(Ref.: 0.0002 dyne/cm^). Minimum impedance, 8

ALJTEIO

l_ArsJSIM(3

P.O. BOX 26105, OKLAHOMA CITY, OK 73126-0105, U.S.A.

© 1987 ALTEC LANSING CORPORATION

ohms. Nominal free-air LF cone resonance, 24
Hz. The voice coil shall be 3" in diameter, driven
by an alnico magnet having a flux density of 1.1
Tesla. Dimensions, 16" diameter x 7" deep.
Weight, 17.5 pounds.

The low frequency loudspeaker shall be the
ALTEC LANSING Model 416-8B.

PRINTED IN U.S.A. 12/87-2m

REVISION 7

AL-1852

42-07-027083