Emotiva Airmotiv 5, Руководство пользователя

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Page 21
Adjustments
The airmotiv powered monitor is calibrated at the factory to ensure that its
low-frequency gain, high-frequency gain, and overall gain are within 1 dB of our
reference standard.
Equalization controls are provided to compensate for various room acoustics and
speaker placement issues. In most situations it is strongly recommended that
equalization adjustments be applied equally to symmetrical pairs of airmotiv monitors.
Failure to do so will adversely affect imaging and soundstage.
Low-frequency Equalization
The Low-frequency Equalization control is intended mainly to compensate for the
“boundary effect” that increases bass output when a speaker is placed near one or
more surfaces or corners.
On the airmotiv, this control affects mainly frequencies below 150 Hz and offers a
maximum reduction of -2 dB or -4 dB at 20 Hz
If you notice excessive or “muddy” bass, especially if your airmotiv monitors are placed
near large surfaces or room corners, try setting the Low-frequency Equalization to
-2 dB or -4 dB.
High-frequency equalization
The High-frequency Equalization control is intended to compensate for room acoustics
(“bright” or “dull” rooms).
On the airmotiv, this control affects mainly frequencies above 4 kHz and offers a gain
or reduction in high-frequency output of +2 dB or -2 dB at 4 kHz
If you notice excessive brightness or harshness, especially if your room contains a
lot of reflective surfaces, try setting this control to the -2 dB position. If your room
contains lots of sound absorbing surfaces, and your music sounds dull, try setting this
control to the +2 dB position.
Setting this control to -2 dB may also improve the overall sound when playing
highly compressed music from a portable music system (MP3 files and files heavily
compressed using other lossy formats tend to have artifacts and distortion which are
most noticeable at higher frequencies).