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Polarity:
To invert polarity of the signal sent to a loudspeaker
(due to mixing loudspeaker types or to test for a reversed
loudspeaker cable run), select the 180º button.
Size:
Full-range loudspeakers capable of low-frequency
reproduction should be set to "large" in order to take
advantage of their full capabilities. Smaller (typically
"bookshelf" sized loudspeakers) should be set to "small" in
order to prevent distortion resulting from being driven with
excessive low frequency signals. When set to small, the low
frequency information for this loudspeaker is diverted
instead to the subwoofer channel(s).
Crossover:
To set the high-pass crossover frequency for a
loudspeaker set as "small", use the "+" and "-" buttons. The
default high-pass frequency is 80Hz. This can be fine-tuned
from 40Hz to 200Hz in 10Hz increments. For subwoofers,
this control sets the low-pass crossover frequency within the
same range. This control is not available for loudspeakers
set as "large".
Loudspeaker EQ Screen:
Touch the loudspeaker EQ button
to the right of the right arrow on the speaker parameter
screen to enter the loudspeaker EQ screen. There are 5
parametric EQ filters for each loudspeaker output (including
subwoofers) that can be independently set. These EQ filters
can be used to help compensate for room acoustics and/or
loudspeaker response deviation.
Document 1000905
PEQ Control - Gain:
adjustable gain from +6dB (boost) to -12dB (cut) in 0.5dB
increments. Simply touch the gain "+" and "-" buttons to
make adjustments.
PEQ Control - Frequency:
adjustable frequency from 20Hz to 20kHz in increments
which vary for convenience and control according to the
frequency range being adjusted. Resolution at low
(subwoofer) frequencies is 2Hz, increasing in width with
increasing frequency. The result is more consistent number
of frequencies adjustable per octave (doubling of
frequency). Simply touch the frequency "+" and "-" buttons
to make adjustments to center frequency.
PEQ Control - Q:
frequency bands can be adjusted from a wide (0.1) range
spanning multiple octaves to a narrow range (10), spanning
only a narrow range of frequencies (forming a notch filter).
This allows for both broadband adjustments and narrow
frequency compensation. Touch the Q "+" and "-" buttons to
make adjustments to PEQ filter bandwidth.
Noise Generator:
white and pink noise generators for aiding in system tuning
and calibration. Enable the noise generators here.
Acurus MUSE pre-amp processor USER GUIDE
The loudspeaker PEQ features
The loudspeaker PEQ features
The Q or bandwidth of each of the PEQ
The MUSE features tone (sinusoidal),
Revision 20190227
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