Electro-voice Microphone User Manual download pdf (Page 16)

MH-Series Stadium Horns

MH-Series stadium horns are designed for large-scale sta-

diums and arenas where high-fidelity sound and directivity

control from low mid-bass frequencies and below are

absolutely essential. In 1974, EV pioneer

ed the concepts of

constant directivity (horn angles that are constant with fre-

quency) and Manifold

technology (which combines the

outputs of multiple transducers into one source). Large-

format MH horns incorporate both in several horn/

driver systems. Medium-format MH horns are excellent

for short/medium throw applications or as infills for large-

format MH-horns.

Medium-format MH-Series horns

MH medium-format horns have a high Q and uniform

directivity control down to 500 Hz. The mid-bass section

features an Aperiodic Enhancer™ phase plug which extends

the high-end output to blend seamlessly into the coaxial

high-frequency section. The HF section contains a small-

format HP horn with EV´s patented Transplanar™ design to

ovide exceptionally smooth frequency response. The one-

piece main horn bell is a black polyester/fiberglass laminate

with composite reinforcement. Up to three pieces can be

paralleled in active or passive mode without a minimum

impedance load at the amplifier.

MH640AC/MH640AP (60° x 40°)

MH660AC/MH660AP (60° x 60°)

MH940AC/MH940AP (90° x 40°)

• Two-way, extraordinary output mid/high

CD horn system

• High sensitivity: 107 dB/1 W/1 m

• Coaxial horn-loaded

• P version has passive crossover

• Water-resistant Kevlar

epoxy cone

• MB horn features Aperiodic Enhancer™ phase plug

• 2" voice coil (titanium diaphragm)

• HF driver protection circuit

• Uniform directivity control to 500 Hz

• All models have same dimensions for uniform-

looking arrays

•

Integral 4-point hanging har

dware in polyester-

powder-coated steel

MH640AC/AP MH660AC/AP MH940AC/AP

Frequency range (-3 dB) 150 Hz–20 kHz 150 Hz–20 kHz 150 Hz–20 kHz

Recommended high-pass 160 Hz (24 dB/Oct.) 160 Hz (24 dB/Oct.) 160 Hz (24 dB/Oct.)

equency

Sensitivity (SPL 1 W/1 m)

107/111 dB; 107 dB

Max. SPL/1m (calc.) 138 dB 138 dB 138 dB

Long-term power handling 300 W/60 W; 300 W 300 W/60 W; 300 W 300 W/60 W; 300 W

Short-term power handling 1,200 W/240 W; 1,200 W 1,200 W/240 W; 1,200 W 1,200 W/240 W; 1,200 W

Coverage (H

x V

) 60° x 40° (CD Horn) 60° x 60° (CD Horn) 90° x 40° (CD Horn)

Directivity Index (500 Hz–20 kHz) 13.7 dB (+1.6/-2.8 dB) 13.7 dB (+1.6/-2.8 dB) 12.6 dB (+3.8/-4.0 dB)

LF driver 10" (DL10X) 10" (DL10X) 10" (DL10X)

HF driver (voice coil) 2"(DH2T) 2"(DH2T) 2"(DH2T)

ossover fr

equencies

1,600 Hz

(slope in biamp mode)

(24 dB/Oct.)

(24 dB/Oct.) (24 dB/Oct.)

Nominal impedance 16 Ω/8 Ω; 8 Ω 16 Ω/8 Ω; 8 Ω 16 Ω/8 Ω; 8 Ω

Input connections Dual barrier strips Dual barrier strips Dual barrier strips

Dimensions 686 x 686 x 711 mm 686 x 686 x 711 mm 686 x 686 x 711 mm

(H x W at fr

ont x D)

27" x 27" x 28"

27" x 27" x 28" 27" x 27" x 28"

Net weight 27.2 kg (60 lbs.) 27.2 kg (60 lbs.) 27.2 kg (60 lbs.)

(Large format: without HF driver)

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Electro-voice Microphone User Manual Page 16

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