U.S.A. and Canada only.
For customer orders, contact the Customer Service department at
800/392-3497 Fax: 800/955-6831
For warranty repair or service information, contact the Service
Repair department at 800/685-2606
For technical assistance, contact Technical Support at 866/78AUDIO
Please refer to the Engineering Data Sheet for warranty information.
Specifications subject to change without notice.
:
s
n
o
i
s
n
e
m
i
D
s
e
h
c
n
I
A
8
3
9
.
1
B
0
0
.
5
C
5
7
.
8
D
0
0
.
1
1
E
0
0
.
4
F
4
x
1
8
2
.
0
G
2
5
.
6
H
3
3
.
6
Directivity
The directional characteristics of the HP66 were measured
in Electro-Voice’s large anechoic chamber using a stock
Electro-Voice® DH1A. The test signal was one-third-octave
filtered pink-noise at the frequencies indicated. A full spherical
measurement system was used. All directional information
was measured at 6.1 meters (20 feet) from the horn.
Figure 3: 6-dB-Down Beamwidth versus Frequency
This shows the horizontal and vertical beamwidths. Beamwidth is the
angle at which the horizontal and vertical polar responses have
decreased in level by 6 dB when compared with the axial frequency
Figure 2: Directivity vesus Frequency
This illustrates the total directivity of the HP66. The directivity factor R
θ
(Q) is the relative value at a point of the HP66 when compared to an
ideal spherical response. The directivity index Di is calculated by
D
i
=10log
10
R
θ
.
Figure 1: Dimensions
© Telex Communications, Inc. 02/2001
Part Number 38109-958 Rev A
USA
12000 Portland Ave South, Burnsville, MN 55337, Phone: 952-884-4051, FAX: 952-884-0043
Canada
705 Progress Avenue, Unit 46,Scarborough, Ontario, Canada, M1H2X1,Phone: 416-431-4975, 800-881-1685, FAX: 416-431-4588
Germany
Hirschberger Ring 45, D94315, Straubing, Germany, Phone: 49 9421-706 0, FAX: 49 9421-706 287
France
Parc de Courcerin, Alle Lech Walesa, Lognes, 77185 Marne La Vallee, France, Phone: 33/1-6480-0090, FAX: 33/1-6480-4538
Australia
Unit 23, Block C, Slough Business Park, Slough Avenue, Silverwater, N.S.W. 2128, Australia, Phone: 61/2-9648-3455, FAX: 61/2-9648-5585
Hong Kong
Unit E & F, 21/F, Luk Hop Industrial Bldg., 8 Luk Hop St., San PO Kong, Kowloon, Hong Kong, Phone: 852-2351-3628, FAX: 852-2351-3329
Japan
5-3-8 Funabashi, Setagaya-ku, Tokyo, 156-0055 Japan, Phone: +81 (0) 3-5316-5020, FAX: +81 (0) 3-5316-5031
Singapore
3015A Ubi Rd 1, 05-10, Kampong Ubi Industrial Estate, Singapore 408705, Phone: 65-746-8760, FAX: 65-746-1206
Mexico
Av. Parque Chapultepec #66-201, Col. EI. Parque Edo. Mex. 53390, Phone: (52) 5358-5434, FAX: (52) 5358-5588
UK
4, The Willows Centre, Willow Lane, Mitcham, Surrey CR4 4NX, UK, Phone: 44 181 640 9600, FAX: 44 181 646 7084
Africa, Mid-East
12000 Portland Ave South, Burnsville, MN 55337, Phone: 952-887-7424, FAX: 952-887-9212
Latin America
12000 Portland Ave South, Burnsville, MN 55337, Phone: 952-887-7491, FAX: 952-887-9212
www.electrovoice.com Telex Communications, Inc. www.telex.com
