EVI-28 250-
W
att T
w
o
-W
ay Compact V
ari Intense
®
Speaker
System
EVI-28 250-Watt Two-Way Compact Vari Intense
®
Speaker System
8
SPEAKERS - Full-Range
Part Number 534622 — 9812
600 Cecil Street, Buchanan, MI 49107
800/234-6831, 616/695-6831, 616/695-1304 Fax
©Telex Communications, Inc., 1998 • Litho in U.S.A.
Specifications
Axial Frequency Response, Swept Sine
Wave, 4 volts at 3.05 meters (10 feet),
anechoic environment, normalized for 1
watt at 1 meter; see Figure 1:
62-25,000Hz
Low-Frequency 3-dB-Down Point:
62 Hz
Usable Low-Frequency Limit (10-dB-Down
Point):
50 Hz
Half-Space Reference Efficiency:
1.1%
Power Handling Capacity (see Power-Han-
dling Capacity Section):
250 watts, long-term continuous
(8-hour)
350 watts, short-term continuous
(2-hour)
1400 watts, peak power
Maximum Woofer Acoustic Output:
3.8 watts
Sensitivity (SPL at 1 watt, 1 meter input,
anechoic environment, swept sine wave, 62-
25,000Hz):
93 dB
Maximum Output (SPL at rated power, in-
cluding any power compression due to
nonlinearities in the system):
116 dB SPL, long-term continuous
117.5 dB SPL, short-term continuous
123.5 dB SPL, short-term peak
Dispersion Angle Included by 6-dB-Down
Points on Polar Responses, Indicated One-
Third-Octave Bands of Pink Noise (see Fig-
ures 5 and 6):
800-20,000 Hz, Short-Throw Horizontal:
110 d/-20 degrees
1,000-20,000 Hz, Long-Throw Horizontal:
65 d/-20 degrees
600-20,000 Hz, Vertical:
65 d/-20 degrees
Directivity Factor, R
θ
(Q) 1,600 - 20,000 Hz
average (see Figure 7):
11.7 (+3.5,-3.8)
Recommended Operational Vertical Angle
(see Figure 4):
-5 degrees to -45 degrees
Distortion, 0.1 Full Power Input (see Fig-
ure 4), Second Harmonic,
100 Hz:
-49 dB, 0.35%
1000 Hz:
-51 dB, 0.3%
10,000 Hz:
-27 dB, 4.5%
Third Harmonic,
100 Hz:
-50 dB, 0.3%
1000 Hz:
-58 dB, 0.1%
10,000 Hz:
-44 dB, 0.6%
Transducer Complement,
Low Frequency:
Dual 8-inch high-efficiency, high-
power woofers
High Frequency:
DH2010A driver
Box-Tuning Frequency:
67 Hz
Crossover Specifications, Full-range,
Crossover Frequency:
2,000 Hz
Crossover Slope,
Low Pass:
12 dB per octave with frequency, de-
lay and amplitude shading
High Pass:
12 dB per octave
Impedance (see Figure 3):
Nominal:
8 ohms
Minimum:
6.2 ohms (225 Hz)
Input Connections:
Large shielded screw terminals for up
to 10 gauge wire
Driver Protection, High Frequency:
Solid-state self-resetting circuit
(PRO
TM
circuit) drops output 6 dB
Enclosure:
Direct-radiating vented LF, built of 12 mm
(0.5-inch) 9-ply and 18 mm (0.71-inch)
13-ply birch plywood with appropriate
bracing, lined with flame-retardant cotton
batting
Enclosure Colors:
Black or white with black or white pow
der-coated perforated-metal grille
Dimensions (see Figure 8):
Height:
353 mm (13.9 inch)
Width:
496 mm (19.5 inch)
Depth:
523 mm (20.6 inch)
Net Weight:
16.3 kg (36 lb)
Shipping Weight:
21.8 kg (48 lb)
Accessories:
Electro-Voice EVI-28MB-BK black
U-Bracket suspension kit
Electro-Voice EVI-28MB-WH white
U-Bracket suspension kit
Attachment Points:
Two 3/8”-16 hanging points included
