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equalization
.
Crossover
frequencies
of 160 Hz
and 1600 Hz
should
be
selected,
with
a 0.6
ms
delay
setting
in the high-frequency
section.
A
30
Hz high-pass filter
should be selected
for
subpassband protection
of
the low-frequency
section.
FREQUENCY RESPONSE
The PI6615
axial
frequency response
was
measured
in
Electro-Voice's
large
anechoic
chamber at
a distance
of 3.0
meters
(10
feet)
with a swept sine-wave input
(see
Figure 1)
.
It
has been normalized for 1 watt/1 meter into the
mid-bass section
.
Minimal level
adjustmentand
equalization have been used.
DIRECTIVITY
The directional
characteristics of the
PI6615
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 AcoustaCADDTM
computer-aided de-
sign program, was used. All
directional infor-
mation was measured
at 6.1
meters
(20
feet).
Figure 6 illustrates the nominal horizontal and
vertical polar responses
,
with the long
system
axis vertical. If the
mid-bass/high-frequency
module
IS
rotated
,
then the horizontal
and
ver-
tical polars
should be
interchanged.
Figure 2 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 3 represents the total directivity
of
the
P16615. The directivity factor
RH
(Q)
is the
relative value, at
a
point,
when
compared
to
an
ideal spherical response
.
The directivity index
(0,) is
calculated
by 0
,
=
1010g
lO
R
...
SERVICE
In
the unlikely
event
the PI6615
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
rigorous
of
power
tests,
but
also
through
contin-
ued use in arduous
,
real-life
conditions.
Two
main test
specifications are
used: the AES
Recommended Practice for
Specification of
Loudspeaker Components Used in Professional
Audio and Sound Reinforcement
(AES2-1984/
ANSI S4.26-1984)
and
the EIA Loudspeaker
Power Rating Full Range
(ANSI/EIA
RS-426-A
1980)
.
Both
of
these
specifications
use
random-noise
spectrums which mimic typical
music and test the thermal
and
mechanical
capabilities
of
the
components.
Electro-Voice
will support relevant
additional standards as
and when they become
available.
Extreme
,
in-
house power tests,
which push
the
perfor-
mance boundaries
of
the
components, are also
performed and passed to
ensure years of
trouble-free
service.
Specifically, the PI6615 high-frequency
sec-
tion passes AES2-1984/ANSI
S4.26-1984 with
the following values:
ZMIN
=
6.0 ohms at 7,000 Hz
P
ElM AX)
=
60 watts
Test voltage
=
19.0 volts rms,
38.0 volts peak (+6 dB)
Selected decade
=
1,500-15,000 Hz
The PI6615 mid-bass section passes ANSI!
EIA RS-426-A 1980 with the following values:
RSR
=
6.9 ohms (1.15 x R E )
P
EIMAX)
=
300 watts
Test voltage
=
45.5 volts rms,
91.0 volts peak (+6 dB)
The PI6615 low-frequency section passes ANSI/
EIA RS-426-A 1980 with the following values:
RSR
=
6.7 ohms (1.15 x R
E
)
P
ElM AX)
=
600 watts
Test
voltage
=
63.3 volts rms,
126.5 volts peak (+6 dB)
ARCHITECTS' AND ENGINEERS'
SPECIFICATIONS
The loudspeaker module shall be a three-way,
active,
horn-loaded system, all in one enclo-
sure.
The low frequencies above 40 Hz shall be
reproduced by an 8-ohm 38.1-cm (15-inch)
woofer with an edge-wound, flat-wire 4-inch-
diameter voice
coil
capable of handling 600
watts (per ANSI/EIA RS-426-A) and with a
sensitivity
of 100 dB (1 watt/1 meter). The mid-
bass frequencies shall be reproduced by a
16-ohm 25.4-cm (10-inch) driver/horn combi-
nation
capable
of handling 300 watts (per ANSI/
EIA RS-426-A) and with a
60°
x
60°
coverage
pattern. The high frequencies shall be repro-
duced by an
8-ohm
compression driver with a
5.1-cm (2-inch)
exit capable of handling
60 watts
(per
AES2-1984/ANSI S4.26-1984)
and coupled
to an HP66 constant-directivity
horn with a
60°
x
60°
coverage pattern. The
mid-bass and high-frequency devices shall be
coaxially
mounted and capable of being easily
rotated
within the enclosure through
90°.
The
system
will reproduce frequencies from 40 to
20,000
Hz and have a nominal coverage pat-
tern
of
60°
x
60°,
with directivity control main-
tained down to 500
Hz.
The crossover frequen-
cies shall
be 160 and 1,600
Hz.
The system
shall
be capable of producing average sound
levels in excess of 128 dB at 1 meter in the long
term, with short-term peaks of 134 dB.
The
enclosure
shall be constructed of multi-
layered plywood with black textured paint and
have two metal grilles, each of which attaches
with four screws. The enclosure shall have a
trapezoidal footprint. Dimensions shall be 146
cm (57.3 in.)
tall
,
74.9
cm
(29.5 in.) wide, and
77.0 cm (30.3 in.
deep. Weight shall be 102 kg
(225
Ib). The enclosure shall incorporate as
standard
a method of suspension which allows
the
safe and
flexible suspension of itself and
one other
member of the PI series family using
Ancra fitting 42546-10.
The loudspeaker system shall be the
Electro-Voice
P16615.
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 lim-
ited Warranty does not apply to: (a) exterior
finish or appearance; (b) certain specific items
described in the individual 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 re-
sulting from misuse or abuse of the product; or
(e) malfunction occurring at any time after re-
pairs 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 cus-
tomer 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 replacement and return to the cus-
tomer are the only remedies provided to the
customer. Electro-Voice shall not be liable for
any incidental or consequential damages in-
cluding, without limitation
,
injury 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 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.
Electro-Voice Flying Hardware(including en-
closure-mounted hardware and rigging acces-
sories) is guaranteed against malfunction due
to defects in materials or workmanship for a
period of one
(1)
year from the date of original
purchase
.
Additional details are included in the
Uniform Limited Warranty
statement.
Electro-Voice Accessories are guaranteed
against malfunction due to defects in materials
or workmanship for a period of one
(1)
year 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
8001234-
6831).
Specifications subject to change without
notice.
I
Et
I
ELECTRO-VOICE
a
MAR. 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 532609 -
9519
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