Bose Panaray 502A User manual

Technical Information
502B Acoustimass®Bass
Enclosure
Frequency range
55Hz – 150Hz
Active equalization (with 502C)
Required
Nominal Impedance
8Ω
Maximum acoustic output1
115dB-SPL average; 122dB-SPL peak
Recommended amplifier power
450-1200 Watts continuous into 8Ω
Sensitivity2
90dB-SPL (1W, 1m), 55Hz to 150Hz
Long-Term power handling3
450 Watts continuous
Mechanical Specifications
Dimensions: 31.0" H x 14.0" W x 15.5" D
(78.7 cm H x 35.6 cm W x 39.4 cm D)
Weight: 85 pounds (38.6 kg)
Mounting points: Eight (8) 8mm threaded inserts,
20mm depth
Fuse: 7-ampere AGC 3AG (Littelfuse)
Connectors: Two (2) parallel-wired barrier strips4
502A Controlled Array
Frequency range
130Hz – 15kHz
Active equalization (with 502C)
Required
Nominal Impedance
8Ω
Maximum acoustic output1
112dB-SPL average; 121dB-SPL peak
Recommended amplifier power
150-600 Watts continuous into 8Ω
Sensitivity2
90dB-SPL (1W, 1m), 130Hz to 15kHz
Beamwidth (-6dB point)
120°horizontal; 70º vertical
Long-Term power handling3
150 Watts continuous
Mechanical Specifications
Dimensions: 23.5" H x 5.75" W x 6.75" D
(59.7 cm H x 14.6 cm W x 17.1 cm D)
Weight: 15 pounds (6.8 kg)
Mounting points: Six (6) 8mm threaded
inserts, 11mm depth
Fuse: 4-ampere AGC 4 (Buss) or 3AG
(Littelfuse)
Connectors: Two (2) parallel-wired barrier
strips4
502C Systems Controller
Number of audio channels
Two
Operating Modes
502A Full-range, bi-amp; option (w/option
card)
Rear panel connectors4
Balanced input x 2 (barrier strip)
Balanced high freq. output x 2 (barrier strip)
Balanced low freq. output x 2 (barrier strip)
Crossover
140Hz in bi-amp mode (with 502B);
rolloff slope: -18dB/octave
Rear panel controls
Mode switch
Input sensitivity switch x 2 (-10dB-V, +4dB-V)
Bass level control (range -18dB to +3dB)
Bass mono switch (norm/sum)
Electrical specifications
Channel separation: >60dB @ 1kHz
Input impedance: 2.4kΩnominal
Output impedance: 600Ωnominal
Output level: 8.0 V RMS max. into 600Ω
Mechanical Specifications
Dimensions: 120 V/barrier strip –1.75" H x
19.0" W x 8.75" D
(4.4 cm H x 48.3 cm W x 22.2 cm D)
220-240 V/XLR – 1.75" H x 19.0" W x 8.0" D
(4.4 cm H x 48.3 cm W x 20.3 cm D)
Weight: 5.5 pounds (2.5 kg)
Bose®Panaray®
Sound System
(502®A, 502B, 502C)
1
Full bandwidth pink noise is applied to the 502C Systems Controller and amplified to a level at the speaker terminals corresponding to the long-term rated power handling of the
speaker. The average sound pressure level (dB-SPL) is measured at 1 meter from the speaker in an anechoic environment. The peak maximum acoustic output is the peak SPL
possible with the maximum recommended amplifier power using musical program material.
2Full bandwidth pink noise is applied to the 502C Systems Controller and amplified to a level at the speaker terminals corresponding to one Watt as referenced to the nominal
impedance. The average sound pressure level (dB-SPL) is measured at 1 meter from the speaker in an anechoic environment.
3Full bandwidth noise, meeting the International Electrotechnical Commission standard #268-5, is applied to the 502C Systems Controller and amplified to a voltage at the speaker
terminals corresponding to the power handling of the speaker. The speaker must show no visible or measurable loss of performance after 100 hours of continuous testing.
4International versions use XLR-type connectors.
• New 5-driver array design–optimized for
smooth coverage at all frequencies
• Modular components for system design
flexibility
• Bose-patented Acountimass
®
bass
enclosure
• Sleek, elegant design for architectural
compatibility
• Full line of Bose-designed accessories for
easy installation
• New electronic systems controller
• Available in two colors, plus paintable

System Description
Component Description
The Bose®Panaray®Sound System is a
fully modular system which represents
significant advances in loudspeaker
array, low frequency transducer, and
system control technology. The basic
Panaray system consists of two 502®A
controlled arrays, one 502B Acousti-
mass®bass enclosure, and one 502C
system controller, and provides up to
122dB peak SPL (at 1 meter, driven with
maximum recommended amplifier
power) over the 55Hz to 15kHz range.
Extensive research has yielded new
technology in array design which, using a
proprietary arrangement of Bose 4.5 inch
full range drivers, results in tightly
controlled horizontal and vertical
beamwidth, and extemely smooth band-
to-band directivity. The system also
features a new, compact low frequency
enclosure using Bose-patented Acousti-
mass technology. The Panaray sound
system is a highly aesthetic voice or
music sound reinforcement system for
permanent audio installations in theaters,
auditoriums, churches, nightclubs,
transportation facilities, and other places
where people gather to be entertained,
enlightened, or informed.
The 502A Controlled Array is a mid-high
frequency component of the Bose
Panaray system. It features five new-
design 4.5" (11.4 cm) helical voice coil
drivers in a slim, elegantly-designed
enclosure. The result is natural sounding,
extremely even coverage at all frequen-
cies over the entire listening area. It can
be used either with the 502B Acousti-
mass bass enclosure for full frequency
sound reinforcement, or separately for
voice-only reinforcement systems. The
Two-point suspension is easy to
accomplish using the Bose CSB-5B
suspension bracket. The 502B is
available in both Professional Gray and
Arctic White, and is covered with a
scratch resistant vinyl, which can be
painted to match any decor.
The 502C systems controller is a single
rack space device which provides
cross-over functions, active electronic
equalization, and dual channel signal
processing for both the 502A and
502B. It features -10/+4dB-V input
sensitivity switches, all-balanced inputs
and outputs, -18/+3dB bass level
control, bass mono sum switch,
automatic output muting on turn-off,
and a secure, rear-panel operating
mode switch.
An optional plug-in card is available for
the 502C which allows 502A controlled
arrays to be combined in a sound
system design with the Bose Acoustic
Wave®Cannon system.
The Panaray system includes a com-
plete line of accessories for suspending
or mounting both the 502A and 502B in
a wide variety of configurations.
502A array is designed for installability in
a variety of configurations, using its
integral 10x safety-rated attachment
points and Bose suspension and mount-
ing accessories. The baffle and rear panel
are constructed of high strength structural
foam, and the speaker grille is construct-
ed of a durable perforated steel. It is
available in both Professional Gray and
Arctic White, and both the enclosure and
grille are fully paintable to match interior
decor.
The 502B Acoustimass bass enclosure
uses a single high power handling, high
reliability 12" (30 cm) woofer. This new
Bose-designed low frequency transducer
features a high temperature 4" (10.2 cm)
voice coil, cast aluminum basket, and a
high durablility rubber surround. The
502B provides clear, deep bass reinforce-
ment from a small enclosure, as a result
of Bose-patented Acoustimass speaker
technology. Its low crossover frequency
results in a non-localizable sound source,
which allows it to be unobtrusively install-
ed apart from the 502A arrays. The enclo-
sure is fitted with 10x safety-rated attach-
ment points (top and bottom) for mount-
ing in a variety of orientations.
nominal horizontal
nominal vertical
300˚
200˚
100˚
80˚
60˚
40˚
30˚
20˚
10˚
100 500 1,000 5,000 10,000
Beamwidth*
(-6 dB point)
Beamwidth* vs. Frequency of 502A Controlled Array Frequency [Hz]
* Beamwidth is the -6dB point, in each one-third octave band, on a polor plot representing the
average within ten degrees of the horizontal and vertical planes about the array.
* Directivity is the ratio, in each one-third octave band, of the average response in the nominal 120º x 70º polar window, to the average response
over the entire solid angle about the source.
100
Directivity (Q)*
Directivity vs. Frequency of 502A Controlled Array
10
1
100 500 1,000 5,000 10,000
Frequency [Hz]

System Configurations
The Bose®Panaray®system provides a
flexible, building-block approach to fit
the sound reinforcement requirements of
many types of applications, from night
clubs to cathedrals. Detailed installation
and system design guidelines for the
Panaray System are provided in the
Panaray System Owner's Guide. For
illustrative purposes, here are some
typical system configurations.
Figure 1 shows a block diagram of the
basic Panaray System, consisting of one
502®B, two 502A's, one 502C, and three
channels of amplication for a stereo
system. This system provides 115dB
SPL @ 1 m average acoustic output.
Additional low frequency output can
easily be achieved by locating the
cabinet against large hard surfaces.
(There is also bass volume adjustment
possible through the rear-panel control
on the 502C).
Figure 2 illustrates how components can
be added to the basic Panaray system to
achieve a variety of SPL or coverage
requirements. One example of an
expanded system would be a small disco
dance area. In this application, four
arrays at the outer corners of the dance
floor, plus two 502B's on the floor
adjacent to the dance area, will deliver
approximately 118dB SPL average, with
130dB SPL peaks, all components driven
at maximum recommended amplifier
power.
Figure 3 shows how the Panaray compo-
nents can be interconnected for a voice-
only paging system. This system is ideal
for applications where voice reinforce-
ment is needed over a large area, such
as an airport terminal or a train station.
Through the use of the Bose CVT-5
constant voltage transformer, multiple
502A's can be installed in a 70/100V
constant voltage distributed system.
(This system operates from 130Hz and
above only, and is not recommended for
use where music is an integral part of the
program material).
Figure 1: Basic Panaray system
®®
502 C
SER.NO. D.O.M.
CH1
INPUTLEVEL
–10 +4
INPUT
CH2
INPUTLEVEL
–10 +4
MODE
4
1
2
3
PROTECTEDBYU.S.PATENT3,038,964
REFERTO YOUR INSTRUCTION MANUAL FOR PROPER INSTALLATION
ANDOPERATING PROCEDURES. INCORRECT WIRING MAY RESULTIN
CAUTION AVIS
RISKOF ELECTRICAL SHOCK
DONOT OPEN RISQUEDE CHOC ELECTRIQUE NEPAS OUVRIR
WARNING:
TOREDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK
DONOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.
MODE SWITCH GUIDE
POSITION OPERATINGMODE
4
2-WAYWITH LOW FREQUENCY OPTION
(NOTUSED)
3
STANDARD2-WAY(WITH 502B)
2
VOICEONLY/FULL RANGE (WITH 502A)
1
HIGH
FREQ
OUTPUT
CH1 CH2
LOWFREQ
LEVEL0
.
.
.
.
.
.
.
+3
-18
BOSECORPORATION,FRAMINGHAM, MA 01701-9168
ENGINEEREDANDMANUFACTURED IN U.S.A.
OUTPUTMODE
NORM SUM
LOW
FREQ
OUTPUT
CH1 CH2
230V ~ AC
50/60Hz 12W
INPUTB
INPUTB INPUTA
BRIDGE
INPUTA
220 V ~ MADEIN USA
CAUTION
Inorder to grant a secure operation do not mount the amplifier in
afully closed housing. To preven electric shock, do not remove
cover.Disconnect power line in case of servicing.
ACHTUNG:
Umsichere Funktion zu gewährielsten, Gerät nicht in vollständig
geshlossenesGehäuse einbauen. Abdeckung während des
Betriebesnicht entfernen. Bor Offnen des Gerätes Netzstecker
ziehen.
BoseCorporation, Framinhman 01701, Mass, U.S.A.
SerialNo.:
Madein Germany
OUTPUTB BRIDGEOUTPUT OUTPUTA
ON
OFF
INPUTB
INPUTB INPUTA
BRIDGE
INPUTA
220 V ~ MADEIN USA
CAUTION
Inorder to grant a secure operation do not mount the amplifier in
afully closed housing. To preven electric shock, do not remove
cover.Disconnect power line in case of servicing.
ACHTUNG:
Umsichere Funktion zu gewährielsten, Gerät nicht in vollständig
geshlossenesGehäuse einbauen. Abdeckung während des
Betriebesnicht entfernen. Bor Offnen des Gerätes Netzstecker
ziehen.
BoseCorporation, Framinhman 01701, Mass, U.S.A.
SerialNo.:
Madein Germany
OUTPUTB BRIDGEOUTPUT OUTPUTA
ON
OFF
L
R
High
Frequency
Output
Low Frequency
Output
Amplifier
Amplifier
L
RLR
502A
(Left)
502A
(Right)
502B
From
Pre-
amplifier
®®
Figure 2: Expanded Panaray system
502A
Constant-Voltage
502 C
INPUTB
INPUTB INPUTA
BRIDGE
INPUTA
220 V ~ MADEIN USA
CAUTION
Inorder to grant a secure operation do not mount the amplifier in
afully closed housing. To preven electric shock, do not remove
cover.Disconnect power line in case of servicing.
ACHTUNG:
Umsichere Funktion zu gewährielsten, Gerät nicht in vollständig
geshlossenesGehäuse einbauen. Abdeckung während des
Betriebesnicht entfernen. Bor Offnen des Gerätes Netzstecker
ziehen.
BoseCorporation, Framinhman 01701, Mass, U.S.A.
SerialNo.:
Madein Germany
OUTPUTB BRIDGEOUTPUT OUTPUTA
ON
OFF
SER.NO. D.O.M.
CH1
INPUTLEVEL
–10 +4
INPUT
CH2
INPUTLEVEL
–10 +4
MODE
4
1
2
3
PROTECTEDBYU.S.PATENT3,038,964
REFERTO YOUR INSTRUCTION MANUAL FOR PROPER INSTALLATION
ANDOPERATING PROCEDURES. INCORRECTWIRING MAY RESULT IN
CAUTION AVIS
RISKOFELECTRICAL SHOCK
DONOTOPEN RISQUE DE CHOC ELECTRIQUE NEPASOUVRIR
WARNING:
TOREDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK
DONOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.
MODESWITCH GUIDE
POSITION OPERATINGMODE
4
2-WAYWITHLOW FREQUENCY OPTION
(NOTUSED)
3
STANDARD2-WAY(WITH 502B)
2
VOICEONLY/FULLRANGE (WITH 502A)
1
HIGH
FREQ
OUTPUT
CH1 CH2
LOWFREQ
LEVEL0
.
.
.
.
.
.
.
+3
-18
BOSECORPORATION,FRAMINGHAM,MA 01701-9168
ENGINEEREDANDMANUFACTUREDIN U.S.A.
OUTPUTMODE
NORM SUM
LOW
FREQ
OUTPUT
CH1 CH2
230V ~ AC
50/60Hz 12W
502A
CVT-5
CVT-5
CVT-5
502A
502A
CVT-5
High Frequency
From
®®
®®
®®
®®
Figure 3: Distributed voice-only system
High Frequency
Amplifier One
Bass Amplifier
502 C
502A
502A
502B
®®
®®
502A
502A
®®
®®
502B
INPUTB
INPUTB INPUTA
BRIDGE
INPUTA
220 V ~ MADEIN USA
CAUTION
Inorder to grant a secure operation do not mount the amplifier in
afully closed housing. Topreven electric shock, do not remove
cover.Disconnectpower line in case of servicing.
ACHTUNG:
Umsichere Funktion zu gewährielsten, Gerät nicht in vollständig
geshlossenesGehäuse einbauen.Abdeckung während des
Betriebesnicht entfernen. Bor Offnen des Gerätes Netzstecker
ziehen.
BoseCorporation, Framinhman 01701, Mass, U.S.A.
SerialNo.:
Madein Germany
OUTPUTB BRIDGEOUTPUT OUTPUT A
ON
OFF
SER.NO. D.O.M. CH1
INPUTLEVEL
–10 +4
INPUT
CH2
INPUTLEVEL
–10 +4
MODE
4
1
2
3
PROTECTEDBYU.S.PATENT3,038,964
REFERTOYOUR INSTRUCTION MANUAL FOR PROPER INSTALLATION
ANDOPERATINGPROCEDURES. INCORRECT WIRING MAY RESULT IN
CAUTION AVIS
RISKOFELECTRICAL SHOCK
DONOTOPEN RISQUEDECHOCELECTRIQUE NEPASOUVRIR
WARNING:
TOREDUCETHE RISK OF FIRE OR ELECTRICAL SHOCK
DONOT EXPOSE THIS EQUIPMENT TORAIN OR MOISTURE.
MODESWITCH GUIDE
POSITION OPERATINGMODE
4
2-WAYWITHLOW FREQUENCY OPTION
(NOTUSED)
3
STANDARD2-WAY(WITH 502B)
2
VOICEONLY/FULLRANGE (WITH 502A)
1
HIGH
FREQ
OUTPUT
CH1 CH 2
LOWFREQ
LEVEL0
.
.
.
.
.
.
.
+3
-18
BOSECORPORATION,FRAMINGHAM,MA01701-9168
ENGINEEREDANDMANUFACTUREDINU.S.A.
OUTPUTMODE
NORM SUM
LOW
FREQ
OUTPUT
CH1 CH 2
230V ~ AC
50/60Hz 12W
INPUTB
INPUTB INPUTA
BRIDGE
INPUTA
220 V ~ MADEIN USA
CAUTION
Inorder to grant a secure operation do not mount the amplifier in
afully closed housing. Topreven electric shock, do not remove
cover.Disconnectpower line in case of servicing.
ACHTUNG:
Umsichere Funktion zu gewährielsten, Gerät nicht in vollständig
geshlossenesGehäuse einbauen.Abdeckung während des
Betriebesnicht entfernen. Bor Offnen des Gerätes Netzstecker
ziehen.
BoseCorporation, Framinhman 01701, Mass, U.S.A.
SerialNo.:
Madein Germany
OUTPUTB BRIDGEOUTPUT OUTPUT A
ON
OFF
INPUTB
INPUTB INPUTA
BRIDGE
INPUTA
INPUTB
INPUTB INPUTA
BRIDGE
INPUTA
220 V ~ MADEIN USA
CAUTION
Inorder to grant a secure operation do not mount the amplifier in
afully closed housing. Topreven electric shock, do not remove
cover.Disconnectpower line in case of servicing.
ACHTUNG:
Umsichere Funktion zu gewährielsten, Gerät nicht in vollständig
geshlossenesGehäuse einbauen.Abdeckung während des
Betriebesnicht entfernen. Bor Offnen des Gerätes Netzstecker
ziehen.
BoseCorporation, Framinhman 01701, Mass, U.S.A.
SerialNo.:
Madein Germany
OUTPUTB BRIDGEOUTPUT OUTPUT A
ON
OFF
High Frequency
Amplifier Two

Panaray®Accessories
Engineers' and Architects'
Specifications
A full line of accessories has been
specially designed by Bose®for use with
the Panaray system components. These
accessories increase system configura-
tion flexibility and provide simple
solutions for typical installation chal-
lenges.
502®A Controlled Array Accessories
• CSB-5A Suspension Bracket (2-point
gravitational type, 0º–45º pitch range)
• WCB-5 U-bracket (for wall/ceiling
surface mounting, ±90º range)
• WBP-5 Bi-Pivot Bracket (single-point
surface mount, 0º–45º pitch, ±80º yaw)
• CVT-5 Constant Voltage Transformer
(70/100 volt distributed system trans-
former and housing)
• PSA-5 Stand Adapter (compatible with
Bose SS-5 and SS-10 stands)
502B Acoustimass®Bass Enclosure
Accessories
• CSB-5B Suspension Bracket (2-point
gravitational type, 0º–30º pitch range)
502C Systems Controller Accessories
• Acoustic Wave®Cannon system option
card for active equalization (not shown)
The Bose Panaray 502A Controlled Array
and the 502B Acoustimass Bass Enclo-
sure, are both covered by a five-year,
transferable limited warranty. The Bose
502C System Controller is covered by a
two-year, transferable limited warranty.
Warranty Information
WCB-5
U-bracket
CSB-5A
Suspension
Bracket
PSA-5
Stand Adapter
WBP-5
Bi-Pivot
Bracket
502A Controlled Array:
The mid-high frequency device shall be a
multiple-driver system with matched
active equalization as follows:
The transducer complement shall
consist of five (5) high-sensitivity drivers
of 4.5 inches (11.4 cm) diameter,
mounted vertically on a single baffle
assembly such that directional charac-
teristics are optimized for smooth
response.
The input connector, located on the rear
of the array enclosure, shall consist of a
screw-type barrier strip.
The array enclosure shall be composed
of copolymer materials, with outer
dimensions of 23.5" H x 5.75" W x 6.76"
D (59.7 cm H x 14.6 cm W x 17.1 cm D);
its weight shall be 15 lbs (6.8 kg).
The array maximum acoustic output
shall be 112dB SPL from 130Hz to
15kHz, with measurements referenced to
full-bandwidth pink-noise input at 1
meter at the array's rated power. Its
power handling capacity shall be 150
Watts continuous referenced to IEC
noise for 100 hours. The nominal
horizontal beamwidth shall be 120º. The
nominal vertical beamwidth shall be 70º.
The loudspeaker shall be the Bose
Panaray 502A Controlled Array. © 1995 Bose Corporation, The Mountain, Framingham, MA
01701-9168 USA JN96508 PN171946-Rev. 1
502B Acoustimass Bass Enclosure
The low frequency device shall be a dual
ported highly compact enclosure with
matched active equalization as follows:
The transducer complement shall consist
of one (1) high power handling driver of
30 cm diameter, mounted inside an
enclosure such that distortion is mini-
mized as a result of acoustic filtering. Its
operating frequency range shall be below
150Hz so that non-localizability shall
allow a high degree of location place-
ment flexibility.
The input connector, located on the rear
of the enclosure, shall be a screw-type
barrier strip.
The enclosure shall be made of high
strength, high density resin-impregnated
vinyl wrapped particle board, with outer
dimensions of 31.0" H x 14.0" W x 15.5"
D (78.7 cm H x 35.6 cm W x 39.4 cm D);
its weight shall be 85 lbs (38.6 kg).
The bass enclosure's maximum acoustic
output shall be 115dB SPL from 55Hz to
150Hz, with measurements reference to
a full-bandwidth pink-noise input at 1
meter at the enclosure's rated power. Its
power handling capacity shall be 450
Watts continuous referenced to IEC
noise for 100 hours.
The bass enclosure shall be the Bose
Panaray 502B Acoustimass Bass
enclosure.
502C Systems Controller:
The array and/or bass enclosure shall be
supplied with a fixed 2-channel, systems
controller which provides active elec-
tronic equalization and crossover
functions, to be connected before the
input(s) of the system power amplifier(s).
The systems controller shall use screw-
type terminal strips for balanced input
and output wiring connections, and shall
be rack mountable in a single space of a
standard 19" equipment rack.
It shall also include an operating mode
switch,input sensitivity switch, low
frequency output level control, and mono
sum switch.
The electronic controller shall be the
Bose 502C System Controller.
®
CSB-5B
Suspension
Brackets
CVT-5 Constant Voltage Transformer