Rocktron Taboo Twin - Manual (Page 31)

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PRE EQ (EXPERT) Function
The PRE EQ (EXPERT) function is available in all presets, and allows you to shape the tone prior to the distortion stage.
Considerable tone variations can be achieved by modifying these pre-distort EQ parameters.
The P ARAMETER S ELECT control will allow you to access the following PRE EQ parameters:
Parameter Description
LF LEVEL The pre-LF (low frequency) LEVEL parameter allows you to cut or boost the low frequencies
from -15dB to +6dB prior to the distortion stage. This EQ section is a shelving-type.
LF FREQ The pre-LF (low frequency) FREQUENCY parameter allows you to select a frequency band with
an upper frequency between 63Hz and 500Hz to be cut or boosted by the pre-LF LEVEL
parameter.
MID LEVEL The pre-MID LEVEL parameter allows you to cut or boost the mid-band frequencies from -15dB
to +12dB prior to the distortion stage.
MID FREQ The pre-MID FREQUENCY parameter allows you to select a mid-band center frequency
between 500Hz and 4KHz to be cut or boosted via the pre-MID LEVEL parameter.
MID BW The pre-MID BANDWIDTH parameter determines how wide or narrow the bandwith of the
selected mid-band frequency is (in octaves). A small bandwidth only boosts or cuts frequencies
close to the center frequency, while a large bandwidth affects the level of frequencies up to two
octaves from the center frequency.