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DeltaMax
Specifications
Frequency Response (measured in far
field, with and without crossover and
equalization, calculated to one meter
on axis, swept sine wave, one watt into
system—2.00 V at 60 Hz, anechoic
environment; see Figure 2):
37-200 Hz
Crossover Frequency:
80 Hz
Efficiency:
6.8 %
Maximum Long-Term-Average
Power-Handling Capacity (per ANSI/
EIA RS-426A 1980):
1,200 watts
Maximum Long-Term-Average
Midband Acoustic Output:
82 acoustic watts
Sensitivity (SPL at one meter, indi-
cated input power, anechoic environ-
ment, average level),
1 watt:
99.5 dB
1,200 watts:
130.5 dB
EVI Audio 600 Cecil Street, Buchanan, Michigan 49107, Phone: 616/695-6831, Fax: 616/695-1304
EVI Audio Canada, Inc., 345 Herbert St., Gananoque, Ontario, Canada K7G 2V1, Phone: 613/382-2141, Fax: 613/382-7466
EVI Audio (Switzerland) A.G., Keltenstrasse 11, CH-2563 IPSACH, Switzerland, Phone: 011-41/32-51-6833, Fax: 011-41/32-51-1221
EVI Audio Deutschland GmbH, Hirschberger Ring 45, D-94302, Straubing, Germany, Phone: 011-49/9421-7060, Fax: 011-49/9421-706265
EVI Audio France S.A., Parc de Courcerin-Allee Lech Walesa, Lognes, f-77185 Marne La Vallee, France, Phone: 011-33/1-6480-0090, Fax: 011-33/1-6006-5103
EVI Audio Japan Ltd., 2-5-60 Izumi, Suginami-ku, Tokyo, Japan 168, Phone: 011-81/3-3325-7900, Fax: 011-81/3-3325-7789
EVI Audio (Aust.) Pty., Unit 24, Block C, Slough Business Park, Slough Ave., Silverwater, N.S.W 2141, Australia, Phone: 011-61/2-648-3455, Fax: 011-61/2-648-5585
EVI Audio (Hong Kong) Limited, Unit E & F, 21 /F., Luk Hop Industrial Bldg., 8 Luk Hop St., San Po Kong, Kowloon, Hong Kong, Phone: 011-852/351-3628, Fax: 011-852/351-3329
SPEAKERS—MT and DeltaMax™
6
TM
DME-2181 Loudspeaker System
Beamwidth (angle included by 6-dB-
down points on polar responses,
indicated one-third-octave bands of
pink noise; see Figures 1 and 3),
Horizontal, 63-100 Hz:
285º (+75º, –52º)
Vertical, 63-100 Hz:
240º (+120º, –77º)
Directivity Factor, R
θ
Average (see Figure 4):
1.9 (+0.3, –0.2)
Directivity Index, D
, 63-100 Hz
i
Average (see Figure 4):
2.8 dB (+0.6 dB, –0.6 dB)
Distortion (115 dB SPL at one meter,
shaped spectrum; see Figure 6),
Second Harmonic,
40 Hz:
0.6 %
80 Hz:
0.3 %
Third Harmonic,
40 Hz:
0.3 %
80 Hz:
0.2 %
Transducer Complement:
Two EVX-180A 18-in. woofers
Impedance (see Figure 6),
Nominal:
4 ohms
Minimum:
3.3 ohms
Input Connections:
Two Neutrik NL4MPR Speakon
connectors paralleled
(Q), 63-100 Hz
Recommended Amplifier Power:
1,200-2,400 watts
Enclosure Construction,
Shell:
18 mm, 13-ply birch plywood
Finish:
Black carpet
Grille:
Powder coated steel grille
Dimensions,
Height:
919 mm (36.2 in.)
Width:
577 mm (22.7 in.)
Depth:
764 mm (30.1 in.)
Net Weight:
75 kg (165 lb)
Shipping Weight:
85 kg (187 lb)
®
Part Number 534789 — 9809
(355381)
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