Meyer Sound PARABOLIC SOUND BEAM SB-1 - Manual (Page 4)

SB-1 PHYSICAL DIMENSIONS
frequencies. The best propagation of sound waves occurs when the
air is either very hot and moist, or very cold and dry. In more
moderate conditions, attenuation due to air loss may exceed 3 dB
per doubling of distance from the SB-1.
Interestingly, unlike conventional horn systems, two adjacent SB-
1s can be aimed into the same coverage area for an increase of 6
dB in SPL — without producing cancellations. This unique property
of the SB-1 can be exploited to compensate for air losses.
Can the SB-1 be modified to work below 500 HZ?
No, the 500 Hz limit is determined by the laws of physics: it is the
lowest frequency (longest wavelength) at which the parabolic
reflector remains effective. To provide the same narrow directivity
at lower frequencies would require a vastly larger dish.
Except in special circumstances, however, there is generally little
need for a highly directional low-frequency device. As reinforcement
professionals know from experience, low frequencies travel farther
(that is, are less quickly absorbed by the air) than high ones, so
long throw capability is less of an issue. If the need arises to steer
very low frequencies so as to avoid them spilling into unwanted
coverage areas, selective phase cancellation techniques are more
economical to implement than very large parabolic dishes.
Is the SB-1 weather-resistant?
While the SB-1 is designed and constructed to withstand touring
and intermittent outdoor use, it is not designed for permanent
outdoor installations. A weather-resistant version is in
development; contact your Meyer Sound representative or the
factory technical support department for details.
Meyer Sound Laboratories, Inc.
2832 San Pablo Avenue
Berkeley, CA 94702
tel: 510.486.1166
fax: 510.486.8356
e-mail: [email protected]
http: www.meyersound.com
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L I S T E D
3 K 5 9
C O M M E R C I A L
A U D I O S Y S T E M
SB1 - 01.049.068.01
Meyer Sound Laboratories
has devoted itself to
designing, manufacturing,
and refining components
that deliver superb sonic
reproduction. Every part of
every component is
designed and built to
exacting specifications
and undergoes rigorous,
comprehensive testing
in the laboratories.
Research remains an
integral, driving force
behind all production.
Meyer strives for sound
quality that is predictable
and neutral over an
extended lifetime and
across an extended range.
Made by Meyer Sound, Berkeley, CA, USA
European Office:
Meyer Sound Germany
GmbH
Carl Zeiss Strasse 13
56751 Polch, Germany
© 1997 Meyer Sound Laboratories, Inc.
All rights reserved
!
1 2 3 1 3 2 Loop Input
PUSH Active / Speaker Fault 2 + 3 + 10K Ω Balanced Input Polarity LO Limit HI Limit SB-1
Earth / Chassis 1 Case 220K Ω ESD
3 PU SH R E - C IR K- IT 3 PU SH R E - C IR K- IT
54.0
48.5
18.0
Air Duct
MP-2
Amplifier
REAR SIDE FRONT
Pod Storage
Compartment
Yoke
Attachment
Point(s)