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Technical Information
502 A Controlled Array
Frequency range
130Hz to 15kHz
Nominal impedance
8Ω
Maximum acoustic output
112dB-SPL average; 121dB-SPL
peak
Recommended amplifier power
150-600W continuous into 8Ω
Sensitivity
2
90dB-SPL (1W, 1m), 130Hz to 15kHz
Beamwidth (-6dB point)
120° horizontal; 70º vertical
Long-term power handling
150W 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 lb (6.8 kg)
Mounting points: Six (6) 8mm
threaded inserts, 11mm depth
Fuse: 4-ampere AGC 4 (Buss) or
3AG (Littlefuse)
Connectors: Two (2) parallel-wired
barrier strips
4
502 B Acoustimass
Enclosures
Frequency range
502 B: 55Hz to 150Hz
Nominal impedance
8Ω
1
Maximum acoustic output
115dB-SPL average; 122dB-SPL peak
Recommended amplifier power
450 to 1200 watts continuous into 8Ω
Sensitivity
2
90dB-SPL (1W, 1m), 55Hz to 150Hz
Long-term power handling
450W continuous
Mechanical specifications
3
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 lb (38.6 kg)
Mounting points: Eight (8) 8mm
threaded inserts, 20mm depth
Fuse: 7-ampere AGC or 3AG
(Littlefuse)
Connectors: Two (2) parallel-wired
barrier strips
4
Bose
A and 502 B
502
®
Loudspeakers
• New 5-driver array design –
optimized for smooth coverage at
all frequencies
• Modular components for system
design flexibility
• Bose-patented Acoustimass
enclosure
• Sleek, elegant design for architec-
tural compatibility
• Full line of Bose-designed accesso-
ries for easy installation
®
• New electronic systems controller
• Available in two colors, plus
paintable
1
1
Full bandwidth pink noise is applied to the
3
Panaray system digital 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
Panaray system digital 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 Panaray system digital 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.
®
®
Panaray
®