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ELECTRO-VOICE
a
MARK IVMARK IV
MARK IVMARK IV
MARK IV company
600 Cecil Street, Buchanan, Michigan 49107
MANUFACTURING PLANTS AT BUCHANAN, MI NEWPORT, TN SEVIERVILLE, TN OKLAHOMA CITY, OK GANANOQUE, ONT.
© Electro-Voice, Inc. 1994
Litho in U.S.A. Part Number 531996 — 9434
against either surface of its mounting flange
and requires a 229 mm (9.0 in.) diameter cutout
and a 244 mm (9.62 in.) bolt circle. Normal
fasteners up to 6 mm (1/4 in.) will fit through the
eight holes in the frame. Front mounting is
simplest using the optional SMH-1 speaker
mounting kit.
ELECTRICAL CONNECTIONS
The DL10X is fitted with a pair of plated, frame-
mounted connectors with color-coded ends.
Electrical connection is made by pushing down,
inserting wire completely through the rectangu-
lar slot and releasing pressure. One conductor
of #9 stranded, #8 AWG solid, a pair of twisted
#15 AWG stranded or a pair of #14 AWG solid
conductors will fit.
AES RECOMMENDED PRACTICE
The DL10X’s specifications conform to the “AES
Recommended Practice for Specification of
Components Used in Professional Audio and
Sound Reinforcement” (AES2-1984/ANSI
S4.26-1984). This recommended practice was
developed over a number of years by consult-
ants, manufacturers and government agencies
from around the world, so that the detailed
performance information required in profes-
sional applications could be provided in a uni-
fied format. The recommended practice has
been published in the October, 1984, issue of
the
Journal of the Audio Engineering Society
(vol. 26, pp. 771-780). Individual copies of the
recommended practice are available from the
Audio Engineering Society, 60 East 42nd Street,
New York, New York 10165, USA. Also ap-
pearing in this issue is an article which com-
ments on the recommended practice from an
engineering point of view (C.A. Henricksen,
“Engineering Justifications for Selected Por-
tions of the AES Recommended Practice for
Specification of Loudspeaker Components,”
pp. 763-769). The comments in this article will
be particularly of interest to those not involved
in the day-to-day design and testing of loud-
speakers.
ARCHITECTS’ AND ENGINEERS’
SPECIFICATIONS
The low/mid-frequency woofer shall have a
nominal diameter of 25.4 mm (10 in.), an overall
depth of 120 mm (4.7 in.) and weigh less than
8.6 kg (19.0 lb). The frame shall be constructed
of strong, deformation-resistant die-cast alumi-
num. The magnet assembly shall incorporate
PROTEF
TM
protection, a TIR
TM
(Thermo Induc-
tive Ring) and FDD
TM
(Flux Demodulation De-
vice) to reduce inductive coupling and increase
power handling. The cone and dust dome should
withstand use in damp and humid conditions.
The voice coil shall have a diameter of 63.5 mm
(2.5 in.), a winding depth of 15.2 mm (0.6 in.)
and be made of edge-wound aluminum ribbon.
The voice-coil former shall be made of aero-
space-grade polyimide laminate and bonded
with high-temperature epoxy adhesives. The
performance specification of a representative
production unit shall be as follows: measured
sensitivity (SPL at 1 m (3.3 ft) with 1 watt input,
100- to 800-Hz pink noise) shall be in excess of
98 dB. The reference efficiency shall be at least
5.92%. The usable response shall be 100 to
5,000 Hz, and the nominal impedance shall be
8 ohms. The EIA rated power shall be 300
watts. The low/mid-frequency transducer shall
be the Electro-Voice DL10X.
UNIFORM LIMITED WARRANTY
Electro-Voice products are guaranteed against
malfunction due to defects in materials or work-
manship for a specified period, as noted in the
individual product-line statement(s) below, or in
the individual product data sheet or owner’s
manual, beginning with the date of original
purchase. If such malfunction occurs during the
specified period, the product will be repaired or
replaced (at our option) without charge. The
product will be returned to the customer pre-
paid. Exclusions and Limitations: The Limited
Warranty does not apply to: (a) exterior finish or
appearance; (b) certain specific items described
in the individual product-line statement(s) be-
low, or in the individual product data sheet or
owner’s manual; (c) malfunction resulting from
use or operation of the product other than as
specified in the product data sheet or owner’s
manual; (d) malfunction resulting from misuse
or abuse of the product; or (e) malfunction
occurring at any time after repairs have been
made to the product by anyone other than
Electro-Voice or any of its authorized service
representatives. Obtaining Warranty Service:
To obtain warranty service, a customer must
deliver the product, prepaid, to Electro-Voice or
any of its authorized service representatives
together with proof of purchase of the product in
the form of a bill of sale or receipted invoice. A
list of authorized service representatives is
available from Electro-Voice at 600 Cecil Street,
Buchanan, MI 49107 (616/695-6831 or 800/
234-6831). Incidental and Consequential
Damages Excluded: Product repair or replace-
ment and return to the customer are the only
remedies provided to the customer. Electro-
Voice shall not be liable for any incidental or
consequential damages including, without limi-
tation, injury to persons or property or loss of
use. Some states do not allow the exclusion or
limitation of incidental or consequential dam-
ages so the above limitation or exclusion may
not apply to you. Other Rights: This warranty
gives you specific legal rights, and you may
also have other rights which vary from state to
state.
Electro-Voice Speakers and Speaker Sys-
tems are guaranteed against malfunction due
to defects in materials or workmanship for a
period of five (5) years from the date of original
purchase. The Limited Warranty does not apply
to burned voice coils or malfunctions such as
cone and/or coil damage resulting from improp-
erly designed enclosures. Electro-Voice active
electronics associated with the speaker sys-
tems are guaranteed for three (3) years from
the date of original purchase. Additional details
are included in the Uniform Limited Warranty
statement.
Service and repair address for this product:
Electro-Voice, Inc., 600 Cecil Street, Buchanan,
Michigan 49107 (616/695-6831 or 800/234-
6831).
Specifications subject to change without no-
tice.