Electro-Voice PIM-122 User manual

PIM-122
(standard configuration)
12-Inch, Two-Way System
for Permanent Installation,
Horn-Loaded HF
• Part of PI Matrix Series
TM
—compact
trapezoidal systems for permanent
installation
• Components and physical characteristics
optional, to meet many acoustic, architec-
tural and mechanical requirements
• 50-Hz low end for speech and many music
applications
• Three HF coverages—60° x 40°, 60° x 60°
or 90° x 40° (standard)
• PRO
TM
circuit HF protection
• For biamplification (standard); passive
network optional
• Integral suspension system for safe and
easy installation
SPL at Full Power (far-field SPL at 1 watt/
1 meter referred to full power, anechoic
environment, band-limited pink noise),
Long-Term Average/Peak,
Low Frequency (100-800 Hz):
120 dB/126 dB
High Frequency (500-5,000 Hz):
129 dB/135 dB
Impedance,
Nominal (low frequency/
high frequency):
8 ohms/8 ohms
Minimum (low frequency/
high frequency):
8.0 ohms/5.6 ohms
Average Efficiency,
Low Frequency: 4.5%
High Frequency: 25%
SPECIFICATIONS
Versions Available:
See PIM-122 ordering matrix (Figure 1)
Typical Axial Frequency Response with
Presets of Dx34 Digital Speaker System
Processor (swept sine-wave input,
anechoic environment, 4 volts at 1 kHz
at 10 feet; see Figure 2):
50-18,000 Hz
Typical Axial Frequency Response of
High- and Low-Frequency Sections Alone
(swept sine-wave input, anechoic
environment, 4 volts at 10 feet normalized
for 1 watt at 1 meter; see Figure 3):
50-18,000 Hz
Low-Frequency 3-dB-Down Point:
50 Hz
Usable Low-Frequency Limit
(10-dB-down point):
35 Hz
Recommended Crossover Frequency:
1,200 Hz
Crossover Slopes,
Recommended:
24 dB per octave
Minimum:
12 dB per octave
Long-Term Average Power-Handling
Capacity (see Power-Handling Test
section),
Low Frequency (per EIA RS-426-A 1980):
300 watts
High Frequency (per AES2-1984/ANSI
S4.26-1984):
60 watts
Sensitivity (far-field SPL referred to
1 meter, 1-watt input, anechoic environ-
ment, band-limited pink noise),
Low Frequency (100-800 Hz):
95 dB
High Frequency (500-5,000 Hz):
111 dB
Nominal Coverage Angle,
Horizontal: 90°
Vertical: 40°
Beamwidth (angle included by 6-dB-down
points on polar responses, indicated one-
third-octave bands of pink noise, Dx34
presets employed; see Figure 4):
1,250 to 16,000 Hz Horizontal:
90° (+12°, –10°)
3,150 to 16,000 Hz Vertical:
40° (+9, –8°)
Directivity Factor Rθθ
θθ
θ(Q), 500- to 16,000-Hz
Median (see Figure 5):
12.8 (+12.6, –9.9)
Directivity Index Di, 500- to 16,000-Hz
Median (see Figure 5):
11.1 dB (+11.0 dB, –9.9 dB)
FIGURE 1 — PIM-122 Ordering Matrix

PIM-122 SPECIFICATION GRAPHICS
FIGURE 2 — PIM-122 Typical Axial Frequency Response with Presets of
Dx34 Digital Speaker System Processor (swept sine-wave
input, anechoic environment, 4 volts at 1 kHz at 10 feet)
FIGURE 3 — PIM-122 Typical Axial Frequency Response of High- and Low-
Frequency Sections Alone (swept sine-wave input, anechoic
environment, 4 volts at 10 feet normalized for 1 watt at 1 meter)
FIGURE 4 — PIM-122 Beamwidth vs. Frequency (one-third-octave bands of
pink noise)
FIGURE 5 — PIM-122 Directivity Factor and Directivity Index vs. Frequency
(one-third-octave bands of pink noise)
θ
FIGURE 6 — PIM-122 Harmonic Distortion with Dx34 Presets, 10% Rated
Input Power at 500 Hz (on axis at 1 meter from system)
FIGURE 7 — PIM-122 Dimensions
FIGURE 8 — PIM-122 Polar Responses, Selected to Typify Performance
(one-third-octave bands of pink noise)
HORIZONTAL
VERTICAL
5 dB PER
DIVISION

Distortion Response with Dx34 Presets,
1% Rated Input Power at 500 Hz (on axis
at 1 meter from system),
Second Harmonic:
100 Hz: <1.0%
1,000 Hz: <1.0%
10,000 Hz: 1.3%
Third Harmonic,
100 Hz: <1.0%
1,000 Hz: <1.0%
10,000 Hz: <1.0%
Distortion Response with Dx34 Presets,
10% Rated Input Power at 500 Hz (on axis
at 1 meter from system; see Figure 6),
Second Harmonic,
100 Hz: 2.5%
1,000 Hz: <1.0%
10,000 Hz: 2.5%
Third Harmonic,
100 Hz: 1.4%
1,000 Hz: <1.0%
10,000 Hz: <1.0%
Transducer Complement,
Low Frequency:
DL12X 305-mm (12-in.) woofer
in a vented enclosure
High Frequency:
HP94S 90° x 40° horn mounted
to DH2As2 compression driver with
51-mm (2-inch) exit
Box Tuning Frequency:
45 Hz
Polarity (all drivers):
A positive voltage applied to the positively
marked input terminal produces a positive
acoustic pressure at the front of the
system
Input Connections, Low Frequency/
High Frequency:
#10 screw terminals on barrier strip; each
driver can be individually accessed
Driver Protection, High Frequency:
Solid-state self-resetting circuit (PROTM
circuit) drops input 6 dB; blocking
capacitor with 800-Hz corner frequency
and 6-dB-per-octave slope
Enclosure Materials and Color:
Textured black painted 7-ply void-free
birch
Grille:
Black powder coated, vibration-resistant
steel, removable
Suspension:
Integral three-point flying system (accepts
Ancra 42546-10 single-stud tie-down cargo
fitting; four fittings supplied with system;
see Suspending PIM-122 Enclosures
section)
Dimensions (see Figure 7),
Height:
759 mm (29.9 in.)
Width at front:
485 mm (19.1 In.)
Width at rear:
267 mm (10.5 in.)
Depth:
439 mm (17.3 in.)
Side-Wall Draft Angle:
15°
Net Weight:
35.4 kg (78 Ib)
Shipping Weight:
40.5 kg (89 Ib)
DESCRIPTION AND APPLICATIONS
The Electro-Voice PIM-122 is a compact, trap-
ezoidaltwo-wayspeakersystemforpermanent
installation.Thehigh-frequencysectionishorn
loaded and the low-frequency section is direct
radiatinginan optimally vented enclosure. The
PIM-122 is part of the PI Matrix SeriesTM, a
highly flexible group of full-range and low-
frequencysystemsforapplicationswherecom-
pact systems are appropriate. Many perform-
ing arts centers, clubs, auditoriums, sports
facilitiesandhouses of worship are candidates
for the PI Matrix SeriesTM.
The flexibility of the PI Matrix SeriesTM allows
thedesignerto customize a system to both suit
the acoustic environment and meet a wide
varietyofarchitecturalandmechanicalrequire-
ments. High-frequency horns have been opti-
mally sized to maintain their rated coverage
patterns down to the chosen crossover fre-
quencies and over as wide a frequency range
aspossible. Furthermore,thehornsareoption-
ally available in three coverage angles (90° x
40°, 60° x 40° and 60° x 60°) to aid in properly
matching a speaker location to the audience
area.Inaddition,allhornsmayberotatedabout
their axes, for coverage that is independent of
enclosure orientation.
Other PI Matrix SeriesTM options include low-
and high-frequency drivers, enclosure materi-
alsandfinish,grilles,suspensionhardwareand
input-panelconnections,givingthesoundcon-
tractororconsultantliterallythousandsofcom-
binations to satisfy the overall system design
criteria.
The PIM-122 standard configuration is a 90° x
40° two-way full-range system for biamplifica-
tion. The PIM-122 maintains good directivity
control down to 1,500 Hz (see Figure 4). The
low-frequency section incorporates a DL12X
305-mm (12-in.) woofer. The angled enclosure
sides(15°)allowceilingorunder-balconymount-
ing with a reduced vertical profile and aiming
angle that is inherently in the general direction
oftheaudience.Theenclosureismadeofblack
painted 7-ply void-free birch and includes cer-
tified flying hardware as standard.
Delivering smooth and extended performance,
thehigh-frequencysectionoperatesfrom1,200
to 18,000 Hz and consists of a DH2As2 com-
pression driver coupled to an HP94S 90° x 40°
constant-directivity horn. The HP94S horn fea-
tures integral fiberglass-and-zinc construction
for exceptional strength and performance.
Beamwidth-control vanes in the horn throat
correctallcoverageanomaliesinthe10- to 20-
kHz octave. The driver is protected from over-
drive by the solid-state, self-resetting PROTM
circuit, which drops the input signal by 6 dB.
Additional protection at the low end of the
driver’s range is provided by a series blocking
capacitorwithacornerfrequencyof800Hzand
slope of 6 dB per octave.
The low-frequency section operates between
50 and 1,200 Hz and has been designed for
superior performance. The DL12X woofer can
handleverylargelevelsofinputpower,produc-
ing high acoustic output with relatively low
distortion and closely matching the output lev-
els of the high-frequency section.
The PIM-122 is equipped with a number of
additional features to make operation and in-
stallation easy and secure. A proprietary struc-
tural extrusion is incorporated into the enclo-
sure, providing safe and flexible suspension
(seeSuspendingPIM-122Enclosuressection).
Up to two enclosures of the same footprint can
be suspended without additional support (as
longas thelowersystemisnot heavierthanthe
uppersystem),soarrayscanbecreatedquickly
and easily. The grille is composed of vibration-
resistant steel for excellent driver protection,
and an optional foam cover can be added for
betterprotectionwhen used outdoors. Besides
the standard black-painted finish, the enclo-
sure can also be ordered primed in white for
painting with ordinary paints, unfinished for
staining,orwithourspecialWolverine®weather-
resistantfinishforoutdoorapplications.Alldriv-
ers on the PIM-122 can be serviced from the
front of the enclosure.
A complete listing of all system options is
shown in Figure 1.
SUSPENDING PIM-122 ENCLOSURES
Suspending any object is potentially danger-
ous and should be attempted only by individu-
als who have a thorough knowledge of the
techniques and regulations of hanging over-
head. Electro-Voice strongly recommends that
the PIM-122 be suspended taking into account
all current national, federal, state and local
regulations. It is the responsibility of the in-
staller to ensure the PIM-122 is safely installed
in accordance with all such regulations. If the
PIM-122 is suspended, Electro-Voice strongly
recommends that the system be inspected at
least once a year. If any sign of weakness or
damageis detected, remedial actionshouldbe
taken immediately.
The PI Matrix Series™ enclosures are sus-
pended using the following approach, which
has been approved by an independent struc-
tural engineer. Every enclosure incorporates
six independent suspension points, three on
the top and three on the bottom. A minimum of
three points must be used at all times to sus-
pend the enclosure. The suspension points,
which “tie” the top and sides of the enclosure
together, are made of structural aluminum.
Each suspension point mates to an Ancra
42546-10 locking fitting (four are supplied with
each enclosure ordered with this option, EV
part no. 20562), and each point has a break
strengthof907kg(2,000 Ib)inanydirection.1A
maximum of two enclosures can be “daisy
chained” together, allowing the construction of
vertical arrays. If longer arrays are required,
provision must be made to independently sus-
pend each enclosure. The Ancra 42546-10
fitting incorporates a safety pin to prevent acci-
dental release, and it should be engaged at all
times.
ROTATING THE HIGH-FREQUENCY HORN
ThePIM-122high-frequencyhornmaybeeas-
ilyrotatedaboutitsmajoraxis,providingcover-
ageindependentofenclosureorientation.First
removetheenclosuregrille,thenthehorn.Both
are affixed with Phillips-head screws (use a #2
Phillipsscrewdriver).Rotatethehorn90°about
its axis and reinstall the components.
CONNECTIONS
Theoption ordered, biamped or passive cross-
over with either barrier-strip or Neutrik Spea-
kon®connectors, will determine the wiring of
the system components.
Biamped Input
If the system is biamped with barrier strips,
each frequency section can be individually ac-
cessed via #10 screw terminals as marked on
the input panels. If Neutrik Speakon®connec-
tors are used, pins 1+/1– are wired to the low-
frequency driver and pins 2+/2– to the high-
frequency section.
Passive Crossover Input
If the passive crossover option is used, both
barrier strips are wired in parallel and pins +1/
–1 on both Neutrik Speakon®connectors are
wired in parallel.
In all cases, drivers are connected with the
same polarity. A positive voltage applied to the
positively marked terminal produces a positive
acoustic pressure at the front of the system.
CROSSOVER, EQ AND SIGNAL DELAY
The PIM-122 is a two-way system which must
bebiampedwithaseparateactivecrossover.A
_________________
1. For additional information, contact Ancra International at
606/371-7272 or toll free (within U.S. only) at 800/233-5138.

ELECTRO-VOICE a 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. 1995 Litho in U.S.A. Part Number 532701 — 9528
1,200-Hzcrossoverfrequencyisrecommended.
Optimum performance and reliability are pro-
vided by 24-dB-per-octave slopes. 12-dB-per-
octaveslopesaretheminimumrecommended.
The low-frequency section should have sub-
passbandprotectionusingahigh-passfilterset
atabout 30 Hz. No signal delay orfurtherEQis
mandatory but their use can smooth response
anddirectivity,particularlyintheregionofcross-
over. The high-frequency section requires the
appropriate constant-directivity-horn high-
frequency boost EQ for flat response.
The Dx34 digital speaker system processor
can be set to provide subpassband protection,
crossover, EQ and signal delay for optimum
performance of the PIM-122. Contact Electro-
Voiceforthespecificparametersettings.Alter-
natively, the XEQ-2 or XEQ-3 analog cross-
over/equalizer/delay networks can be used.
High-frequency horn EQ is provided by plug-in
modules, the specific model of which is deter-
minedbythehornmodel.TheXEQengineering
data sheets provide this specific information.
LOW-FREQUENCY ENHANCEMENT
If it is desirable to enhance low-frequency per-
formance,Electro-Voicerecommends,depend-
ingoninstallationrequirements,thePIM-151or
PIM-251 PI Matrix SeriesTM systems as well as
any of the TL series or MTL series of Manifold
Technology®systems. Contact Electro-Voice
for information on these systems.
FREQUENCY RESPONSE
PIM-122axialfrequencyresponses were mea-
sured in Electro-Voice’s large anechoic cham-
ber at a distance of 3.0 meters (10 feet) with
swept sine-wave input. Figure 2 shows the
typical overall system response with presets of
the Dx34 digital speaker system processor.
Speakerdrivevoltageis4voltsat1kHz.Figure
3 shows the responses of the individual low-
andhigh-frequencysectionswitha4-voltdrive,
normalized for a 1-watt input and a 1-meter
distance.
DIRECTIVITY
The directional characteristics of the PIM-122
were measured in Electro-Voice’s large
anechoic chamber, with a test signal of one-
third-octave filtered pink noise at the frequen-
cies indicated. A full spherical measurement
system, which is fully compatible with Mark IV
Audio’s AcoustaCADD™ computer aided de-
sign program, was used. All directional infor-
mation was measured at 6.1 meters (20 feet).
Figure 8 illustrates the nominal horizontal and
vertical polar responses, with the long system
axis vertical. If the high-frequency horn is ro-
tated, then the horizontal and vertical polars
should be interchanged.
Figure 4 illustrates 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 com-
pared to the on-axis frequency response.
Figure 5 represents the total directivity of the
PIM-122. The directivity factor Rθ(Q) is the
relative value, at a point, when compared to an
ideal spherical response. The directivity index
(Di) is calculated by Di = 10log10R.
SERVICE
In the unlikely event the PIM-122 requires ser-
vice, each driver can be replaced or serviced
from the front. A service data sheet is available
from Electro-Voice.
POWER-HANDLING TEST
Electro-Voice components and systems are
manufactured to exacting standards, ensuring
they will hold up, not only through the most
rigorousofpowertests,butalsothroughcontin-
ued use in arduous, real-life conditions. Two
main test specifications are used: the AES
Recommended Practice for Specification of
LoudspeakerComponentsUsedinProfessional
Audioand SoundReinforcement(AES2-1984/
ANSI S4.26-1984) and the EIA Loudspeaker
PowerRatingFull Range(ANSI/EIARS426-A
1980). Both of these specifications use ran-
dom-noisespectrumwhichmimictypicalmusic
and test the thermal and mechanical capabili-
ties of the components. Electro-Voice will sup-
portrelevantadditionalstandardsasand when
they become available. Extreme, in-house
powertests,whichpushtheperformancebound-
aries of the components, are also performed
and passed to ensure years of trouble free
service.
Specifically, the PIM-122 high-frequency sec-
tionpassesAES2-1984/ANSIS4.26-1984with
the following values:
Zmin = 5.6 ohms at 7,000 Hz
PE(max) = 60 watts
Test voltage = 18.3 volts rms
36.7 volts peak (+6 dB)
Selected decade = 1,500-15,000 Hz
The PIM-122 low-frequency passes ANSI/EIA
RS-426-A 1980 with the following values:
RSR = 6.9 ohms (1.15 x RE)
PE(max) = 300 Watts
Test voltage = 45.5 volts rms
91.0 volts peak (+6 dB)
ARCHITECTS’ AND ENGINEERS’
SPECIFICATIONS
Theloudspeakershallbe atwo-waysystemfor
biamplification.Lowfrequenciesshallberepro-
duced by an 8-ohm 305-mm (12-in.) woofer
withanedge-woundflat-wire 63.5-mm (2.5-in.)
voice coil capable of handling 300 watts long
term per ANSI/EIA RS-426-A and with a sensi-
tivity of 95 dB 1 watt/1 meter. High frequencies
shall be reproduced by an 8-ohm compression
driver with a 76.2-mm (3-in.) diaphragm and a
51-mm(2-in.)exit,capableofhandling60watts
long term per AES2-1984/ANSI S4.26-1984,
coupledtoaconstant-directivityhornwitha90°
x 40° coverage pattern and with a sensitivity of
112dB.Thehigh-frequencyhornshallberotat-
able90°aboutitsaxiswithintheenclosure.The
system shall reproduce frequencies from 50 to
18,000 Hz and have a nominal coverage pat-
tern of 90° x 40°, with directivity control main-
tained down to 1,500 Hz. The recommended
crossover frequency shall be 1,200 Hz. Maxi-
mumaveragesoundpressurelevelsat 1meter
shall be 120 dB (low-frequency section) and
129 dB (high-frequency section), with short-
term peaks 6 dB higher.
The enclosure shall be constructed of 7-ply
void-free birch and finished in black textured
paint. The enclosure shall have a trapezoidal
footprint. Dimensions shall be 759 mm (29.9
in.)high,485mm(19.1in.)wideatthefront,267
mm(10.5in.)wideattherearand438mm(17.3
in.)deep.Enclosuresidesshallhavea15°draft
angle. The enclosure shall have a suspension
system approved by an independent structural
engineer and consisting of three independent
suspension points on the top and three on the
bottom, all of which shall mate with Ancra
42546-10 fittings. Net weight shall be 35.4 kg
(78 lb).
The loudspeaker system shall be the Electro-
Voice PIM-122.
Note: the PIM-122 described above is the
standard configuration. Acoustic and me-
chanical details will vary when different op-
tions are supplied.
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
theindividualproductdatasheetorowner’smanual,
beginning with the date of original purchase. If
such malfunction occurs during the specified pe-
riod,theproductwillberepairedorreplaced(atour
option) without charge. The product will be re-
turned to the customer prepaid. Exclusions and
Limitations:TheLimitedWarrantydoesnotapply
to: (a) exterior finish or appearance; (b) certain
specific items described in the individual product-
line statement(s) below, or in the individual prod-
uctdatasheetorowner’smanual;(c)malfunction
resultingfromuseoroperationoftheproductother
than as specified in the product data sheet or
owner’s manual; (d) malfunction resulting from
misuseor abuseoftheproduct;or (e)malfunction
occurringatanytimeafterrepairshavebeenmade
totheproductbyanyoneotherthanElectro-Voice
or any of its authorized service representatives.
ObtainingWarrantyService:Toobtainwarranty
service, a customer must deliver the product,
prepaid, to Electro-Voice or any of its authorized
servicerepresentativestogetherwithproofofpur-
chase of the product in the form of a bill of sale or
receipted invoice. A list of authorized service rep-
resentativesisavailablefromElectro-Voiceat600
CecilStreet,Buchanan, MI49107(616/695-6831
or 800/234-6831). Incidental and Consequen-
tial Damages Excluded: Product repair or re-
placementandreturntothecustomerare theonly
remediesprovidedtothecustomer.Electro-Voice
shallnotbeliableforanyincidentalorconsequen-
tialdamagesincluding, withoutlimitation,injury to
personsorpropertyorlossofuse.Somestatesdo
notallowtheexclusionorlimitationofincidentalor
consequentialdamagessotheabovelimitationor
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-VoiceSpeakersandSpeakerSystems
areguaranteedagainstmalfunctionduetodefects
inmaterialsorworkmanshipforaperiodoffive(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 designed en-
closures. Electro-Voice active electronics associ-
atedwith thespeakersystemsareguaranteed for
three(3)yearsfrom the date oforiginalpurchase.
Additional details are included in the Uniform
Limited Warranty statement.
Electro-VoiceFlyingHardware(includingenclo-
sure-mountedhardware andrigging accessories)
is guaranteed against malfunction due to defects
inmaterialsorworkmanshipforaperiodofone(1)
yearfromthedateoforiginalpurchase.Additional
details are included in the Uniform Limited War-
ranty statement.
Electro-Voice Accessories are guaranteed
against malfunction due to defects in materials or
workmanshipforaperiodofone(1)yearfromthe
date of original purchase. Additional details are
included in the Uniform Limited Warranty state-
ment.
Serviceandrepairaddressforthisproduct:Electro-
Voice,Inc.,600CecilStreet,Buchanan,Michigan
49107 (616/695-6831 or 800/234-6831).
Specifications subject to change without notice.