Yamaha O2R Owner's Manual page 35

Setting the Frequency
1. Select the frequency (F) icon for the LOW band using the CURSOR
buttons.
2. Use the encoder wheel to sweep through the frequency range.
You can also adjust the "F" rotary encoder of the EQUALIZER controls to
achieve the same effect.
All four bands of the 02R parametric equalizer cover virtually the entire
audio spectrum, from 21 Hz to 20.1 kHz. Although they are labelled LOW,
L-MID, H-MID, and HIGH, the frequency of the bands can actually be in
any order.
Note: If your 02R is busy processing some complex data, it may take a little
while to draw the equalization curve. However, the internal EQ circuits reflect
your adjustments immediately.
Note: As well as the frequency value in Hz displayed under the icon and on the
numeric LED in the SELECTED CHANNEL - EQUALIZER controls, the dotted
vertical line on the EQ graph indicates the current frequency position.
3. Use the CURSOR buttons to select the frequency (F) icon for the
L-MID band and adjust its position with the encoder wheel. Select
the other bands and adjust their frequency.
You can also select the different bands using the [L-MID], [H-MID], and
[HIGH/LPF] buttons of the SELECTED CHANNEL- EQUALIZER
controls. Adjust the "F" rotary encoder for each band.
Digital Recording Console 02R Getting Started Guide
Introductory Recording Tutorial 27