DeltaMax
TM
DMS-1152/64 Loudspeaker System
DeltaMax
TM
DMS-1152/64 Loudspeaker System
3
The DMS-1152/64 was designed for expe-
dient field service. Removing the woofer
bolts allows the woofer to be easily re-
moved. Removing the horn-mounting
screws allows access to the compression
driver, both through the horn and woofer
baffle cutouts. A woofer failure will re-
quire replacement of the entire driver. In
the case of a compression driver failure, a
diaphragm assembly replacement kit with
instructions is available. If desired, the
complete driver may be returned for ser-
vice.
The following replacement parts are avail-
able from Mark IV Audio Service in Bucha-
nan, Michigan:
LF: Complete woofer: EV Part No. 815-2738
HF: Diaphragm kit; EV Part No. 81161-XX
Architects' and Engineers'
Specifications
The loudspeaker system shall be a two-
way biamped system with performance
controlled by a variety of dedicated elec-
tronic control units. The loudspeaker sys-
tem shall have a 15-inch, low-frequency, di-
rect-radiating driver with an 8-ohm, 4-inch
voice coil constructed of aluminum wire, and
shall be capable of a 600-watt shaped
pink-noise signal with a 6-dB crest fac-
tor for 8 hours (as per ANSI/EIA RS-
426-A 1980 standard). The loudspeaker
system shall have a 25.4 mm (1.0-inch) exit
compression driver mounted on a high-fre-
quency horn. The compression driver shall
have 50.8-mm (2.0-inch) diameter, .001-inch
thick titanium dome and an 8-ohm nomi-
nal, 50.8-mm (2.0-inch) diameter voice coil
constructed of aluminum wire, and which
shall be capable of handling a 60-watt, 1,480
to 20,000 Hz pink-noise signal with a 6-dB
crest factor for 8 hours (as per EIA RS-
426-A 1980 standard). The high-frequency
horn shall be of the constant-directivity
type and fully rotatable and shall produce
a nominal horizontal beamwidth (6-dB-
down angle) of 60° from 2,000 to 20,000 Hz,
and a nominal vertical beamwidth of 40°
from 1,600 to 20,000 Hz. The loudspeaker
system enclosure shall be constructed of
18-mm thick 13-ply birch plywood, trap-
ezoidal in shape, forming a 30° wedge, and
shall have a vinyl-clad steel-grille system.
The DMS-1152/64 system shall be used
with recommended control systems and
shall have a two-way crossover circuit with
fourth-order Linkwitz-Riley filters, equal-
ization, time delay and protection circuitry.
When used with the electronic control unit,
the loudspeaker system shall have a flat
on-axis frequency response from 50 to
16,000 Hz. The loudspeaker enclosure di-
mensions shall be 759 mm (29.88 inches)
high, 450 mm (17.73 inches) wide and
413 mm (16.26 inches) deep and shall
weigh 35.4 kg (78 lb). The system shall
incorporate a two-point rigging system
that will accept New Haven NH32101-2
double-stud ring fittings and the New Ha-
ven NH8192-2.5 and Ancva 4254C-10
single-stud fittings.
The loudspeaker shall be Electro-Voice
DMS-1152/64 (and its variants).
Limited Warranty
Electro-Voice products are guaranteed
against malfunction due to defects in ma-
terials or workmanship for a specified pe-
riod, as noted in the individual product-
line statement(s) below, or in the individual
product data sheet or owner’s manual, be-
ginning with the date of original purchase.
If such malfunction occurs during the
specified period, the product will be re-
paired or replaced (at our option) without
charge. The product will be returned to the
customer prepaid. Exclusions and Limita-
tions: The Limited Warranty does not ap-
ply to: (a) exterior finish or appearance; (b)
certain specific items described in the indi-
vidual product-line statement(s) below, 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 result-
ing from misuse or abuse of the product;
or (e) malfunction occurring at any time
after repairs have been made to the prod-
uct by anyone other than EVI Audio Ser-
vice or any of its authorized service repre-
sentatives. Obtaining Warranty Service:
To obtain warranty service, a customer
must deliver the product, prepaid, to
EVI Audio Service 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 avail-
able from EVI Audio Service at 600 Cecil
Street, Buchanan, MI 49107 (800/234-6831
or FAX 616/695-4743). Incidental and Con-
sequential Damages Excluded: Product re-
pair or replacement and return to the cus-
tomer are the only remedies provided to
the customer. Electro-Voice shall not be li-
able for any incidental or consequential
damages including, without limitation, in-
jury to persons or property or loss of use.
Some states do not allow the exclusion or
limitation of incidental or consequential
damages so the above limitation or exclu-
sion 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 workman-
ship 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 improperly de-
signed enclosures. Electro-Voice active
electronics associated with the speaker
systems are guaranteed for three (3) years
from the date of original purchase. Addi-
tional details are included in the Uniform
Limited Warranty statement.
Electro-Voice Accessories are guaranteed
against malfunction due to defects in ma-
terials or workmanship for a period of one
(1) year from the date of original purchase.
Additional details are included in the Uni-
form Limited Warranty statement.
Electro-Voice Flying Hardware (including
enclosure-mounted hardware and rigging
accessories) is guaranteed against mal-
function due to defects in materials or
workmanship for a period of one (1) year
from the date of original purchase. Addi-
tional details are included in the Uniform
Limited Warranty statement.
For warranty repair or service informa-
tion, contact the service repair department
at: 616/695-6831 or 800/685-2606.
For technical assistance, contact Technical
Support at 800/234-6831 or 616/695-6831, M-
F, 8:00 a.m. to 5:00 p.m. Eastern Standard
Time.
Specifications subject to change without
notice.
