Bose Panaray 502A, Panaray 502B, Panaray 502C User Manual
Technical Information
Bose® Panaray
®
Sound System
®
(502
• New 5-driver array design–optimized for
smooth coverage at all frequencies
• Modular components for system design
flexibility
• Bose-patented Acountimass
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
A, 502B, 502C)
®
bass
502A Controlled Array
Frequency range
130Hz – 15kHz
Active equalization (with 502C)
Required
Nominal Impedance
8Ω
Maximum acoustic output
112dB-SPL average; 121dB-SPL peak
Recommended amplifier power
150-600 Watts continuous into 8Ω
Sensitivity
2
90dB-SPL (1W, 1m), 130Hz to 15kHz
Beamwidth (-6dB point)
120° horizontal; 70º vertical
Long-Term power handling
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
4
strips
1
3
502B Acoustimass® Bass
Enclosure
Frequency range
55Hz – 150Hz
Active equalization (with 502C)
Required
Nominal Impedance
8Ω
Maximum acoustic output
115dB-SPL average; 122dB-SPL peak
Recommended amplifier power
450-1200 Watts continuous into 8Ω
Sensitivity
2
90dB-SPL (1W, 1m), 55Hz to 150Hz
Long-Term power handling
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 strips
1
3
502C Systems Controller
Number of audio channels
Two
Operating Modes
502A Full-range, bi-amp; option (w/option
card)
Rear panel connectors
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: 2.4kΩ nominal
Output impedance: 600Ω nominal
Output level: 8.0 V RMS max. into 600Ω
Mechanical Specifications
Dimensions: 120 V/barrier strip –1.75" H x
4
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)
4
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.
2
Full 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.
3
Full 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.
4
International versions use XLR-type connectors.
System 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
controlled arrays, one 502B Acousti-
®
mass
bass enclosure, and one 502C
®
A
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 bandto-band directivity. The system also
features a new, compact low frequency
enclosure using Bose-patented Acoustimass 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.
Component Description
The 502A Controlled Array is a mid-high
frequency component of the Bose
Panaray system. It features five newdesign 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 frequencies over the entire listening area. It can
be used either with the 502B Acoustimass bass enclosure for full frequency
sound reinforcement, or separately for
voice-only reinforcement systems. The
300˚
200˚
nominal horizontal
100˚
80˚
Beamwidth*
(-6 dB point)
* 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.
502A array is designed for installability in
a variety of configurations, using its
integral 10x safety-rated attachment
points and Bose suspension and mounting accessories. The baffle and rear panel
are constructed of high strength structural
foam, and the speaker grille is constructed 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 reinforcement 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 installed apart from the 502A arrays. The enclosure is fitted with 10x safety-rated attachment points (top and bottom) for mounting in a variety of orientations.
nominal vertical
60˚
40˚
30˚
20˚
10˚
100 500 1,000 5,000 10,000
Beamwidth* vs. Frequency of 502A Controlled Array
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 complete line of accessories for suspending
or mounting both the 502A and 502B in
a wide variety of configurations.
Frequency [Hz]
100
Directivity (Q)*
10
1
100 500 1,000 5,000 10,000
Directivity vs. Frequency of 502A Controlled 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.
Frequency [Hz]
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