MH4020AC Coaxial Stadium Horn System
MH4020AC Coaxial Stadium Horn System
8
HORNS
Part Number 534919 — 9817
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*
Useable frequency Range:
Coaxial Version (See figure 2)
100-20,000 Hz
Non Coaxial Version (figure 3)
100-4,000 Hz
Power Handling, long-term average
broadband per EIA RS-426A, (see
page 2 for complete test description):
1200 watts
Sensitivity (Sound Pressure Level @
1 Meter, 2.83 Volts input,band limited
pink noise in anechoic environment):
109 dB
Average Efficiency:
25%
Nominal Coverage Angle (See figure 6),
Vertical:
40°
Horizontal:
20°
Mid-bass Transducers,
Configuration:
4-way manifold
y manifold
Transducer Complement:
DL10X-SH (4), with water-resistant
cones and Ring-Mode Decoupling
(RMD™)
Nominal Impedance in pass band (See
figure 4):
8 Ohms/ parallel pair
D.C. Resistance:
6.2 Ohms/ each driver
3.1 Ohms/ parallel pair
Available High-Frequency Transducer
Options For HP420A Horn (Contrac-
tor-selected and installed, purchased
separately)
Single Driver:
DH1A, DH2A, N/DYM1, ND5/2
Manifold Drivers:
DH2A/MT, N/DYM1/MT
Manifolded Driver systems:
DH1A/2MT
Construction,
Mid-bass horn:
One-piece black polyester and
fiberglass with fiberglass rib
reinforcement.
High-Frequency Horn:
A special coaxial version of the
HP420A equipped with resonance
decoupling vents, supplied mounted
on two steel rails
Mid-bass Mechanical Protection:
Integral grille-protection screen
built into manifold chamber
Electrical Connections
Driver Input Connections:
Heavy-duty 12-AWG oxygen free
copper cable, unterminated, exterior
grade UV-Stabilized Flexible
conduit
* Specifications meet or exceed AES Recommended Practice for
Specifications of Loudspeaker Components Used in
Professional Audio and Sound Reinforcement Systems (AES2-
1984; ANSI S4.26-1984)
Driver Polarity:
A positive voltage applied to the
positive leads produces a positive
acoustic pressure.
Recommended High Frequency
Crossover Frequency:
1600 Hz
Slope:
24 dB per octave
HF delay:
2.96ms+/-0.3 ms
Mounting,
Hanging Hardware:
Integral black 10-gauge polyester
powder coated steal.
Physical Specifications,
Height:
1500 mm (50.0 in)
Width:
991 mm (39.0 in)
Length:
1880 mm (73.9 in)
Packed Length:
2030 mm (80.0 in)
Weight:
108 kg (237 lb.)
Shipping Weight:
113 kg (248 lb.)
Packing:
Wooden pallet
