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To Unpack the B120:
grille
Figure 1: Unpacking the B120 subwoofer
1. Place the packing carton upright and fully open the
top flaps. Refer to Figure 1.
2. Without allowing the top flaps to close, stand the packing
carton upside down by carefully "rolling" the carton
over on a soft surface, such as carpet.
3. Lift the packing carton off of the subwoofer. Use
caution to avoid damaging the cabinet and objects
located above the packing carton.
4. In addition to what is shown in Figure 1 above,
the following is included with each B120:
1 x 15' (4.6m) single-RCA LFE cable
4
SUBWOOFER
PLACEMENT
OM
Below 300Hz, loudspeaker and listener locations have
top-EPE
a profound impact on the way sound is reproduced.
All rooms have "standing waves, " by which certain
frequencies are emphasized or diminished. Their
subwoofer
complex patterns can combine to introduce tremendous
sound coloration at low frequencies.
plastic bag
The Concerta B120's Equalization controls can help to
compensate for these effects, but no electronic system
alone can fully compensate for the dramatic effects of
room acoustics. Every room has locations where "nulls"
bottom-EPE
at specific frequencies occur. These cancellations of the
sound are like "black holes, " which no amount of
equalization can fill. The best results are always
achieved through careful placement of both the
beauty carton
loudspeakers and the listening position. Preferable
placement can be determined through the use of
computer modeling programs, or by trial-and-error
measurements. For optimal results, find the best
loudspeaker and listener locations first, then use the
B120 Equalization controls for fine-tune adjustments.
To help determine good locations for the subwoofer(s)
and the listener(s), it is recommended that you make
high-resolution in-room response measurements. Your
authorized Revel dealer can make the appropriate
measurements, using suitable equipment to ensure
optimal results.
Note
Many sound-measurement devices are not
accurate enough to properly measure
low-frequency performance in a listening
room, since room boundaries can often
cause modes (standing waves) with very
narrow-band peaks and dips. Check with
your authorized Revel dealer to confirm
that your measurement equipment is
suitable for accurate, high-resolution
measurements.
Revel Concerta B120
Owner's Manual
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