Harman REVEL PERFORMA3 B112V2, Быстрый старт

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B112V2/B110V2 Subwoofer
Quick Start Guide
SUBWOOFER PLACEMENT
CONSIDERATIONS
When using subwoofers within the limited confines of a typical home
theater room, the reflections, standing waves and absorptions within
the room will create peaks and dips in the bass response that can vary
greatly depending on where the listeners are located in the room – a
listener seated in one location may hear an overabundance of bass
created by a response peak at that location, while another listener only
a few feet away may hear far less bass due to a response dip at that
location.
The subwoofers’ locations within the room (along with the room’s
dimensions) also have a profound effect on the creation of these bass
response peaks and dips. Careful subwoofer placement alone cannot
compensate for all bass response peaks and dips throughout a room, but
careful subwoofer placement can eliminate or significantly reduce the
largest response dips.
It is important to reduce response dips throughout the room as much as
possible via proper subwoofer placement because equalization cannot
be used to compensate for large response dips. For example, using
equalization in an attempt to restore a 13dB response dip requires
that the subwoofer amplifier deliver twenty times the power at that
frequency. This can quickly overdrive the subwoofer amplifier into
clipping, which will significantly degrade audio quality.
In almost any room, placing the subwoofers in corners will produce the
fewest large bass response dips and will also produce the most large
bass response peaks. With the subwoofers so placed, you can then
use the built-in Parametric Equalizer (PEQ) to compensate for the most
problematic frequency response anomaly.
We strongly recommend that you install multiple subwoofers regardless
of the room’s size. A single subwoofer will result in the least consistent
bass performance throughout the room. Using multiple subwoofers can
cancel some room modes at the various listening locations, resulting
in much more consistent low frequency sound quality throughout the
listening area. Additionally, it is often impossible to locate a single
subwoofer such that large response dips, which cannot usually be
corrected via equalization, are not present. The use of two or more
properly placed subwoofers almost always eliminate such response dips.
Since wall construction is almost never perfectly identical on opposite
walls, common formulas such as placing the subs at 1/4 points
rarely work in practice. The best solution is to make high-resolution
measurements from the primary listening area while experimenting with
speaker placement.
PLACING A SINGLE SUBWOOFER
When installing a single subwoofer, experiment with different locations
to find the one that produces the best results throughout your room’s
seating area. As in the previous examples, placing the subwoofer in a
corner will produce the fewest number of deep response dips, which
cannot be corrected with equalization.
Video Screen
PLACING TWO SUBWOOFERS
Placement of two subwoofers will be determined by your room’s seating
arrangement.
Rooms with a single row of seating
Placing the subwoofers in the two front corners will produce the most
consistent bass performance throughout a single row of seating.
Video Screen