Revel Gem 2 - Manual (Page 13)

Ultima Gem2
Owner’s Manual 13
• The Gem2 is magnetically shielded to minimize any effect on
CRT video monitors. However, small, stray magnetic fields
may affect large CRT monitors located in close proximity to
the Gem2. These magnetic fields decrease rapidly with
distance, so moving the loudspeakers farther away from the
monitor will reduce interference. It is important to confirm
that the Gem2 is suitable for use with the intended CRT
monitor.
.
LISTENING ROOM ACOUSTICS
Listening rooms have a profound impact on sound, particularly
at lower frequencies. In fact, listening rooms can dominate the
sound below about 400 Hz. Ideally, listening rooms would have
optimized dimensions to minimize the effects of room resonances.
But in reality, most listening rooms are not designed to enhance
loudspeaker performance.
The interaction between loudspeakers and listening rooms is
complex, depending on two important determinants that affect
the loudspeaker and the listener.
1. Surfaces and other boundaries often cause large peaks and
dips in low-frequency response. These peaks and dips often
reach ranges of 12 dB or more.
2. Standing waves (also known as room modes or resonances)
interact with both the loudspeaker and the listener locations,
resulting in large frequency response errors.
Unfortunately, there is no simple solution that considers both
factors. Even computer software programs that examine one or
both factors may not calculate proper primary listening position
or loudspeaker placement values.
In most cases, proper selection of the primary listening position
combined with proper placement of the loudspeaker will result in
superior performance at lower frequencies. The difference
between superior and inferior results is often just a small
adjustment of the primary listening position or loudspeaker
placement. For more information or assistance contact an
authorized Revel dealer.
Note
DLP, LCD, LCoS and Plasma display devices are not affected by
magnetic fields.
Caution
Loudspeakers placed on stands, walls or video monitors may
fall if tipped or improperly positioned. To avoid this, anchor the
loudspeaker and stand using the same procedures and
hardware used to anchor bookcases, wall units, and other
furniture. Harman Specialty Group assumes no responsibility
for proper selection and installation of hardware or for any
personal injuries or product damages resulting from improper
installation or a fallen loudspeaker.