RBH Sound MC-615-70, A-615-70 User Manual
COMMERCIAL LOUDSPEAKER
O W N E R S M A N U A L
OM-70, rev.1.0
C O N T E N T S
I N T R O D U C T I O N
1
B R E A K I N P E R I O D
1
F E A T U R E S
2
REMOVABLE CONNECTOR
3
W I R I N G D I A G R A M S
4
VOLTA GE S EL EC TOR
5
S T R A I N R E L I E F
5
SAFETY COMPLIANCE
6
S P E C I F I C A T I O N S
7
I N S T A L L A T I O N
8
W A R R A N T Y
9
I N T R O D U C T I O N
ongratulations on your purchase of an RBH loudspeaker system! Your
speakers are the result of many years of research and development
dedicated to producing high quality products for home audio and audio/video
systems.
This manual contains features, installation procedures and specications for
Commercial 70 Volt loudspeaker system. We recommend that you thoroughly
read through the material contained in this manual before connecting your
loudspeakers. This will ensure that you have an understanding of how to
install the speakers for optimum performance.
B R E A K I N P E R I O D
lan on giving your speakers 10-15 hours of playing time to adequately
break in. As the speakers break in the driver suspension will loosen
up. The result will be an increase in low frequency response, improved denition,
clarity and detail.
1
F E A T U R E S
BH Commercial loudspeakers consist of two models, the A-615-70 and
the MC-615-70. Both models incorporate metal enclosures to reinforce
bass frequencies allowing a deeper and more controlled bass response. Both
models also utilize an acoustic suspension design and offer operation in either
8 Ohm or 70 volt modes.
A powerful magnet, extended voice coil and bumped back plate give the
bass/midrange drivers high ex cur sion capability. This ensures accurate
dynamic re pro duc tion. The MC-615-70 uses a proprietary aluminum woofer
and tweeter. The special aluminum cone material combines stiff ness, low
mass and self damping prop er ties in a manner that allows virtually un col ored
pre sen ta tion of program ma te ri al. Both tweeters feature Ferro FluidTM liquid
cooling to allow greater power handling.
Steep acoustic slope crossovers are used to integrate drivers. The use
of steep cross over slopes allows high power handling, minimizes driver
interaction anom a lies, and maximizes the clarity with which each driver is able
to produce its re spec tive fre quen cy band. Sophisticated computer modeling
techniques are used extensively in the RBH loudspeaker design process.
A switch connected to the tweeter allows you to custom tailor the sound to
your tastes. This switch is located next to the woofer on the front baf e of the
speaker and has three positions: +3dB, 0, -3dB. The +3 position increases
output of the tweeter, the -3 position decreases the output of the tweeter relative to the woofer. The 0 position is the factory setting and generally provides
the most natural response from the speaker.
The use of a 70 volt transformer allows many speakers to be used
together by running a connecting wire from one speaker to the next,
without concern for the impedance seen by the amplifier. A 70 volt
ampli er must be used to accomplish this. Please refer to the following
pages for instruction and wiring diagrams to properly install a 70 volt system.
2
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