EVX
-180B 18-Inch Low
-F
requency Reproducer
EVX-180B 18-Inch Low-Frequency Reproducer
8
600 Cecil Street, Buchanan, MI 49107
616/695-6831, 616/695-1304 Fax
TRANSDUCER-Low-frequency
Part Number 534954-A — 9905
600 Cecil Street, Buchanan, MI 49107
616/695-6831, 616/695-1304 Fax
©Telex Communications, Inc. 1999 • Litho in U.S.A.
Specifications
Power Handling (see Power-Handling
Test section):
1,000 watts continuous program
Voice-Coil Diameter:
102 mm (4.0 in.)
Sensitivity (SPL at 1 W/1 m), 100-800-Hz
average):
98 dB
Impedance,
Nominal:
8 ohms
Minimum:
7 ohms
Frequency Response (see Figure 1, 2 and
10):
20-2,000 Hz
Highest Recommended Crossover:
500 Hz
Magnet Assembly Weight:
8.3 kg (18.3 lb)
Physical Constants,
Effective Piston Diameter:
394 mm (15.5 in.)
Total Moving Mass:
0.127 kg (0.280 lb)
Voice-Coil Winding Depth:
20.3 mm (0.80 in.)
Top-Plate Thickness at Voice Coil:
8.9 mm (0.35 in.)
BL Factor:
21.9 tesla-meters
Thiele-Small Parameters,
f
s
:
29 Hz
V
AS
:
416 liters (14.7 ft
3
)
Q
ES
:
0.285
Q
MS
:
4.00
Q
TS
:
0.266
R
E
:
5.0 ohms
ηηηηη
O
:
3.42%
S
D
:
0.122 m
2
(189 in.
2
)
M
MD
:
0.127 kg (0.280 lb)
L
E
:
C
MS
:
0.200 mm/N
R
MS
:
6.86 mechanical ohms
P
E(max)
: 600 watts
x
max
1
:
6.4 mm (0.25 in.)
X
lim
2
:
25 mm (0.98 in.)
Thermal Rise after Power Test:
82° C (147° F)
Typical Vented Enclosures (see Recom
mended Enclosures section):
170-283 liters (6-10 ft
3
) tuned from
28 Hz to 45 Hz
Electrical Connections (see Electrical
Connections section),
Connector Type:
Push terminals for bare wires
Polarity:
A positive voltage applied to the
positive (red) terminal produces a
positive pressure at the front of the
cone
Additional Descriptive Information,
Magnet Weight:
2.2 kg (4.9 lb)
1. X
max
is the one-way peak excursion that produces 10% distortion of the current waveform when driven at f
s
.
2. X
lim
, or displacement limit, is the one-way peak excursion which, when exceeded, will cause physical damage to the drive mechanisum.
Magnet Material:
Barium ferrite
Frame:
Cast aluminum
Frame finish:
Voice-Coil Material:
Aluminum
Voice-Coil Insulation:
Polyimide, 220° C (428° F) rating
Voice-Coil Form:
Polyimide
Plating of Steel Parts:
E-coat (XXX???)
Dimensions,
Outer Diameter:
460 mm (18.2 in.)
Depth:
200 mm (7.92 in.)
Bolt-Hole Diameter:
7.1 mm (0.281 in.)
Net Weight:
11.3 kg (25 lb)
Shipping Weight:
14.1 kg (31 lb)
