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Sx80PI T wo-Way Speaker System With Transformer
Stand Mounting
The Sx80PI enclosure contains four M5 in-
serts (see Figures 7 and 9) for the attach-
ment of the optional Sx80SM stand mount
adaptor kit for mounting the Sx80PI on a
1-3/8 in. stand. Please refer to the Sx80SM
engineering data sheet for complete instal-
lation instructions.
Suspending Sx80PI 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 Sx80PI 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 Sx80PI is safely installed in accor-
dance with all such regulations. If the
Sx80PI is suspended, Electro-Voice strongly
recommends that the system be inspected at
least once a year. If any sign of weakness or
damage is detected, remedial action should
be taken immediately.
The Sx80PI 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 Sx80PI
at any angle and orientation from the wall or
ceiling (See Figures 7 and 8). It uses M6
inserts on the top and the bottom of the en-
closure. There is an extra M6 insert on the
top of the enclosure for a safety chain. Full
instructions are included in the Sx80MB
engineering data sheet.
®
OmniMount
Series 75
Four M6 threaded inserts and screws are lo-
cated on the rear of the Sx80PI for use with
the OmniMount
®
Series 75 support system.
A safety chain should be used to ensure safe
operation.
Full instructions for the
3
OmniMount
from:
OmniMount Systems Inc.
8201 South 48th Street
Phoenix, AZ 85022
Tel: 602/829-8000
Fax: 602/756-9000
Transformer Settings (Sx80PIX)
A transformer and power selector switch are
installed in the rear of the enclousre. The level
of the Sx80PIX may be adjested by changing
the switch setting using a screwdriver. Turn-
ing the switch clockwise increases the power.
Since the same switch and transformer are used
for either the 100-volt or 70-volt line, the
power setting depends upon the amplifier out-
put that is used, 100-volt or 70-volt.
CAUTION: When connected to a 100-volt
line, do not use the switch setting marked
"DO NOT USE," as this may result in ex-
cessive power driving the Sx80PI or exces-
sive distortion.
Weather Resistant Mounting
When mounting the Sx80PI in a location
where a weather-resistant system is required,
a minimum of a five-degree down angle is
recommended. (See Figure 10). This will
help prevent any moisture from wicking
through the foam and mesh-baked grille and
®
Series 75
accumulating inside the enclosure under ex-
treme weather conditions.
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;
maximum power handling. Non-transformer
version: 175 watts long term and 700 watts
short term; transformer version: 60 watts
long term and 240 watts short term with
®
Series 75 can be obtained
switch selectable taps for 60 W, 30 W, 15 W,
7.5 W, 3.7 W and 1.8 W, with a shaped ran-
dom-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 in-
put; 6-dB-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; crossover frequency of 2,200 Hz;
nominal impedance 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 ac-
cessories. Dimensions shall be 400 mm (15.75
in.) high x 292 mm (11.5 in.) wide x 240 mm
(9.45 in.) deep. Net weight shall be 9.3 kg
(20.5 lb).
The system shall be capable of producing
average sound levels in excess of in the long
term, and short-term peaks.
The loudspeaker system shall be the
Electro-Voice Sx80PI (non transformer) or
Sx80PIX (transformer).
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-
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