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Adjustments
The
airmotiv
™
4s
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
4s
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 4s
, 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
4s
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
4s
, 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).
