Altec Lansing 416-8B User Manual
8b low frequency loudspeaker
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416-8B LOW FREQUENCY
LOUDSPEAKER
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 edge-
wound 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.
SPECIFICATIONS
Frame Diameter:
16"
*Power Rating:
150 watts program
Frequency Response (Hz):
75 watts continuoL
noise band-limitec
30-1600
Pressure Sensitivity
(1 watt (E^/Z min) with
pink noise band-limited
100-1000 Hz):
98 dB at 1 meter
Maximum Sound
Pressure (Full power
(E^/Z min) with pink
noise band-limited
100-1000 Hz):
117 dB at 1 meter
Impedance:
8 ohms mínimum
Maximum Excursion
Before Damage
(Peak to Peak):
.70in.
Voice Coil Diameter:
3 in.
Thiele-Small Parameters —
Free-Air Resonance (fj):
24 Hz
Equivalent Volume
Compliance (V^s):
22.9
Total Q(Q
ts
):
.23
Electrical Q (Q
es
):
.24
Mechanical Q (Q
ms
)'
6.4
Reference Efficiency {
t
|
o
)’
3.6%
D.C. Resistance (R
e
):
6.5 ohms
Peak Linear
Displacement
0.13 in.
Peak Linear Volume
Displacement (Vp):
16.6 in.^
Effective Surface Area
of Driver Diagram (Sp):
128 in.^
Additional Parameters —
Effective Piston
Diameter:
12.75 in.
Voice Coil inductance:
2.5 m H.
BL Factor:
16.0
Magnet Type:
Alnico
Magnet Weight:
39 oz.
Flux Density:
1.1 Tesla
Mounting Information —
Baffle Opening
Diameter:
141/8" (35.87 cm)
Mounting Bolt
Circle Diameter:
15" (38.1 cm)
Loudspeaker Depth
(front mounting):
61
/
4
" (15.88 cm)
Loudspeaker Depth
(rear mounting):
7" (17.78 cm)
Weight:
17.5 Ibs (7.94 kg)
*AES power rating measured E^/Z min where E = 25V, Z = 8il, band-
limited 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.)
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