14
Parametric EQ
All Sonance DSP amplifier models feature a 10 band parametric
EQ. Adjustments made to the EQ will be displayed on the output
frequency response graph. We strongly suggest not adjusting the
EQ without proper measurement equipment.
EQ On/Off
Turns each of the 10 parametric EQ filters on and off.
EQ Frequency Hz
Enter the center frequency (20Hz - 20kHz) for the filter to
be adjusted.
EQ-Q
This setting determines the width of the adjustment range.
The lower the number the wider the bandwidth. The higher the
number the narrower the bandwidth.
EQ-Gain +/- dB
The level of each parametric adjustment can be set +/-12dB.
Careful adjustment of the EQ gain is necessary to prevent damage
to the speakers. Always increase the level as little as possible.
The first choice should always be to reduce the output to achieve
the target frequency response.
Delay
Delay is shown in milliseconds, feet and meters. You can make an
entry in any of the three fields and the other fields will be calculated
automatically. The minimum delay is .01 milliseconds, the maximum
delay is 12 milliseconds. This function is useful when compensating
for distance between satellites and subwoofers for instance.
Tilt Control
The tilt controls are very sophisticated bass and treble control.
By selecting a start frequency and level you can ramp the bass and
or treble up or down. The effect of the tilt control is visible in the
output frequency response graph.
Low Tilt/High Tilt
This setting turns the low and high tilt controls on and off.
Frequency
Enter the start frequency of the tilt in Hz. To boost the low
frequencies you would typically set the low tilt to 100Hz. To boost
the high frequencies you would set the high tilt to around 5kHz.
Gain
The gain can be set in 1dB steps +/-12dB. When setting the gain
use as little positive gain as possible to minimize the risk of damage
to the loudspeakers.
Crossover
LP Xover / HP Xover
This setting turns the high and low pass crossovers on and off.
Frequency
In this field you can enter any frequency between 20Hz-20kHz.
Filter Type
6dB, 12dB, 18dB and 24dB per octave Butterworth filters are
available in the pull down menu. The higher the number the faster
the speakers output will be reduced below or above the crossover
frequency. In a typical satellite subwoofer system the crossover
frequency would be around 80-100Hz for both the high and low
pass filters.
All of the above output power ratings are when connected to an 8
Ohm load.
Limiter
The limiter operates as a brick wall limit on the output of the
amplifier. The limiter drop down menu has -3dB, -6dB and -12dB
options. The maximum outputs for each of the models:
No Limiter -3dB -6dB
-9dB
MKII
150 watts 75 watts 37.5 watts 18.25 watts
