User Manual

24 | Backpage Parameters
Octave Extension (OE)
This Backpage parameter offers a choice between a seven or eight band
equalizer. The illumination of the bottom most
LED signifies the selection
of the factory default 7-band
EQ. The illumination of the second LED
from the bottom signifies the selection of an 8-band
EQ. The additional
8th
EQ band is one octave above the highest band in the default setting
(8 Kilohertz).
Once the 8-band
EQ has been selected and the Backpages mode
has been exited, the additional 8K band can be accessed by scrolling
the
EQ all the way to the right, then hitting the right arrow button one
additional time. Each frequency band setting will shift one position to
the left opening access to the
8K band in the right most column.
Note: This is a global setting and will not be saved per preset.
Volume (VA)
Adjusts the pedal’s final output signal level. It is possible to change the
factory default output level by +/-
12dB in steps of 1 dB.
Q (Q)
First, let’s define what
Q is. In the early days of radio, the sharper the
band-pass filter in the tuner section was, the better the radio could tune
in a desired station and reject other stations at nearby frequencies. So
the sharpness of the filter was termed “quality”, or
Q.
Adjusting the Q parameter in the
BEF Pro multiplies all the Q’s in the
filter definition. Increasing the Q’s of the filters results in narrower and
sometimes higher peaks in the frequency response. In general, it will
sound wetter, although it is certainly possible to overdo it—the highest
Q settings are extreme. Notches in the frequency response, however,
will become less evident with higher Q’s (because they will become nar-
rower.). Decreasing Q will create a dryer, less effect driven tone.
The center position of the
LED display represents a value of 1.0, or no
change to Q. Going up to higher values can reach a factor of
20. Lower
values go to
.25. Higher Q’s may require a volume reduction on the
Backpage.