Service; Suspending Sx80 Enclosures; Omnimount Series 75; Architects’ And Engineers’ Specifications - Electro-Voice Sx80 Specifications

as catastrophic feedback or dropped
microphones.
2. A more conservative, "normal" amplifier
size, which will produce audible results
nearly equal to those of the "expert" rec-
ommendation, is 1.0 to 1.4 times the long-
term average noise power rating of the
speaker. For the Sx80 this is 175 to 245
watts.
3. To be very conservative, one can use an
amplifier rated at 0.5 to 0.7 times the long-
term average noise power rating of the
loudspeaker. For the Sx80 this is 87.5 to
122.5 watts.
Request P.A. Bible Addition No. Two
("Power Handling Capacity") for more back-
ground on these recommendations.

Service

In the unlikely event the Sx80 requires ser-
vice, the woofer can be removed from the
front. The high-frequency driver can be re-
moved by separating the front and the rear
halves of the enclosure and removing the bolt
that attaches the driver to the rear. A service
data sheet is available from Electro-Voice.

Suspending Sx80 Enclosures

WARNING: Suspending any object is po-
tentially dangerous and should be attempted
only by individuals who have a thorough
knowledge of the techniques and regulations
of rigging objects overhead. Electro-Voice
strongly recommends that the Sx80 be sus-
pended taking into account all current na-
tional, federal, state, and local regulations.
It is the responsibility of the installer to en-
sure the Sx80 is safely installed in accor-
dance with all such regulations. If the Sx80
is suspended, Electro-Voice strongly recom-
mends that the system be inspected at least
once a year. If any sign of weakness or dam-
age is detected, remedial action should be
taken immediately.
3
Sx80 175-Watt T wo-Way Speaker System
The Sx80 enclosure contains seven M6 in-
serts and (see Figure 7) which are built into
the enclosure for the purpose of suspension.
These inserts can be used with either the
Sx80MB mounting bracket from Electro-
Voice, or with an OmniMount
mounting system..
Sx80MB
The Sx80MB is a universal U-bracket de-
signed to allow the suspension of the Sx80
at any angle and orientation from the wall or
ceiling (See Figure 8). It uses M6 inserts on
the top and the bottom of the enclosure.
There is an extra M6 insert on the top of the
enclosure for a safety chain. Full instruc-
tions are included in the Sx80MB engineer-
ing data sheet.
OmniMount
Four M6 threaded inserts and screws are lo-
cated on the rear of the Sx80 for use with
the OmniMount
A safety chain should be used to ensure safe
operation.
OmniMount
from:
Architects' and Engineers'
Specifications
The loudspeaker shall consist of a 200-mm
(8.0-in.) low frequency transducer in a
vented, trapezoidal-shaped enclosure: a
DH2005 high-frequency compression driver
with a pure titanium diaphragm coupled to a
90° X 65° constant-directivity horn molded
into the front baffle of the enclosure. The
system will use a passive crossover-equal-
ize network with protection for the high-fre-
quency driver. The loudspeaker shall meet
the following performance criteria: fre-
quency response of 65 to 20,000 Hz, -3 dB;
power handling of 175 watts long term and
700 watts short term, with a shaped random-
noise input per ANSI/EIA RS-426-A 1980;
sensitivity of 92 dB SPL at 1 meter with a 1-
watt, 300-2,000-Hz pink-noise input; 6-dB-
®
Series 75
® Series 75
®
Series 75 support system.
Full instructions for the
®
Series 75 can be obtained
OmniMount Systems Inc.
8201 South 48th Street
Phoenix, AZ 85022
Tel: 602/829-8000
Fax: 602/756-9000
down horizontal coverage angle of 90° + 34°/
-27° in the 2,000- to 20,000-Hz range; 6-dB-
down vertical coverage angle of 65° + 31°/
- 4° in the 2,000- to 20,000-Hz range; cross-
over frequency of 2,200 Hz; nominal imped-
ance of 8 ohms and minimum impedance of
7.2 ohms. Input connectors shall be push
pins. The enclosure shall be constructed of
high-impact polystyrene and fitted with a
powder-coated steel grille, and M6 and M5
threaded inserts for optional accessories.
Dimensions shall be 400 mm (15.75 in.) high
x 292 mm (11.5 in.) wide x 222 mm (8.75
in.) deep. Net weight shall be 7.3 kg (16 lb).
The system shall be capable of producing
average sound levels in excess of 114 dB
in the long term, and short-term peaks of
120 dB.
The loudspeaker system shall be the Elec-
tro-Voice Sx80B (black) or Sx80W (white).
Uniform Limited Warranty
Electro-Voice products are guaranteed
against malfunction due to defects in mate-
rials or workmanship for a specified period,
as noted in the individual product-line
statement(s) below, or in the individual prod-
uct data sheet or owner's manual, beginning
with the date of original purchase. If such
malfunction occurs during the specified pe-
riod, the product will be repaired or replaced
(at our option) without charge. The product
will be returned to the customer prepaid.
Exclusions and Limitations: The Limited
Warranty does not apply to: (a) exterior fin-
ish or appearance; (b) certain specific items
described in the individual product-line
statement(s) below, or in the individual prod-
uct data sheet or owner's manual; (c) mal-
function 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 Service or any of its authorized ser-
vice representatives. Obtaining Warranty
Service: To obtain warranty service, a cus-
tomer must deliver the product, prepaid, to
Electro-Voice Service or any of its autho-
rized service representatives together with
proof of purchase of the product in the form