RBH SI-744 User Manual

SI-744

IN-WALL SURROUND SPEAKER

O w n e r ’ s M a n u a l

Introduction

Congratulations on your purchase of the RBH Sound SI-744 In-wall Surround speaker! Your
speaker is 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, setup recommendations and specifications for RBH Sound
SI-744 In-wall Surround speaker. It is recommended you thoroughly read through the
material contained in this manual before installing or connecting your speaker. This
will ensure you have a good understanding of how to setup your speaker for optimum
performance and allow for years of listening enjoyment.

The SI-744 employs four proprietary 4-inch high performance metal cone woofers with
neodymium magnets and two 1-inch silk dome tweeters for excellent performance and
crystal clear sonic accuracy. True to RBH Sound tradition, the SI-744 is timbre-matched to
the rest of the Signature Series in-wall and f reestanding speakers.

The SI-744’s design places two of the woofers and one tweeter on a 45-degree angle
towards the screen, while the other two woofers and tweeter point on a 45-degree angle
towards the rear of the theater. This 90-degree angle opposing design, combined with
the SI-744’s dual- or single-channel wiring capability, presents a unique surround sound
solut ion. When integrated into the rear sides of a home theater system and wired in dual­channel mode, the SI-744’s front-firing drivers can play side surround channel audio and
the rear-fir ing dr ivers can play rear surround channel audio. This configuration provides all
four surround channels in a 7.1-channel surround sound system from one pair of SI-744s.
When wired in single-channel mode, the SI-744 presents its listeners with a bi-polar
dispersed sound field for increased surround coverage.

As with other RBH Sound Signature Series In-wall models, the SI-744 features its own
tuned enclosure to provide an optimized env ironment for the speaker and prevent
unwanted cabinet resonance. The enclosure al so boasts an integrated metal drywall cut­out ring and is designed to be installed into a standard stud-framed wall prior to dr ywall
during new construction or renovation. The SI-744’s baffle fits snugly into the area left
over af ter the drywall is finished and is flush to the wall when complete.

Break In Period

Allow several hours of listening time to adequately break-in the speakers. A s the speakers
break-in, the dr iver suspension will loosen. The result of break-in w ill be an increase in
low frequency response, improved definit ion, and increased cl arity and detail.

Speaker Placement

In order to obtain the best possible sound from your speaker system, it is important to
determine where the speakers will sound best in your listening room. Room reflections
from the floor, ceiling and side wall s influence the balance, imaging and overall sonic
quality at the listening position. Exper iment w ith speaker placement to determine which
location offers the bes t overall sound.

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Speaker Placement (continued)

Front Main Speakers

As a starting point, place your left and right speakers at least 7-feet apart from each
other. The distance from the listening posit ion to each speaker should be close to the
distance that separates the two main speakers.

Center Channel Speaker

The Center Channel Speaker should be placed between both left and right main speakers.
Often this positioning dictates placing the speaker either directly above or below a
television monitor. Since some RBH Signature Series speakers are available with v ideo
shielding, the center speaker may be placed in close proximity to a CRT-type television
without cause for concern.

Surround Speakers

The SI-744 is a dedicated surround speaker. This speaker should ideally be placed slightly
behind the listening position on the side walls, regardless of whether it is being used in
single or dual mode. Optimally, there will also be a back wall for the sound to reflect of f of
to come back to the listening position. An optional set of SI-744’s can be used on the back
wall as shown in the diagram below. When using two pair, it is recommended that both
pair be used in the single-channel mode.

Subwoofer

Placement of the subwoofer will largely determine quality, quantit y, and extension of
the bass frequencies within your listening room. Bass frequencies are reinforced by
close room boundaries. Placing the subwoofer in a corner w ill make the subwoofer sound
louder and boost
the ver y lowest
frequencies. Placing
the subwoofer away
from walls will
provide the least
reinforcement,
making the bass
sound subjectively
thinner than if the
woofer were close to
a wall. Good results
can usually be
obtained by placing
a subwoofer along a
wall 1-3 feet from a
corner. Exper iment
with subwoofer
placement and
the sub-amplifier
controls to achieve
the proper bass
balance.

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