Operation Manual

13
EQ Setup
EQ Graph
The upper right of the UI displays the EQ graphically for the channel(s) selected. The EQ graph will start with a perfectly flat response (20-20KHz) when first
setting up your equalizer, then any changes/additions to the 31 band EQ, filters, or Q, will be displayed in the EQ graph.
NOTE: The EQ graph will not
display a perfectly flat
response when first tuning
a vehicle if the “Auto
Normalize” function was
used during configuration.
Instead you will see the
corrections the “Auto
Normalize” made to the
31 Band EQ to flatten the
selected channel(s) its
response.
EQ Controls
The lower half of the UI is used to control the 3Sixty.3 processor’s 31 parametric band EQ. Every channel has its own independent (unless linked) EQ
adjustments. The EQ adjustments can be broken down into three separate sections Crossover Network(s), Level & Delay, and the 31 Band EQ Adjustments.
Crossover Network(s)
The crossover adjustments consist of three parts; Crossover Type, Crossover Class, and Crossover Slope.
Crossover Type
The crossover type for each channel can be configured as either high-pass (HPF), low-pass (LPF), band-pass (BPF), low-shelf (LSF), high-shelf (HSF) or
completely by-passed (AP). After selecting the crossover type, you will need to enter the frequency(s) you would like your filter(s) to cutoff at. Below the
crossover slope selection tab there is a box for entering high filter values and low filter values depending on the crossover type you previously selected.
Crossover Class
The crossover class for each channel can be configured as either Linkwitz (Q=0.49), Bessel (Q=0.58), Butterworth (Q=0.707), or Chebychev (Q=1.0). If you
are not sure which class to use we recommend starting with a Butterworth filter because of its flat response characteristics.
Crossover Slope
The crossover slope for each channel can be configured as either 12dB/octave, 24dB/octave. 36dB/octave, 48dB/octave The steeper then slope, the faster
the roll-off, resulting in less content passing through the device from the unwanted frequency range.
NOTE: If you are unsure as to the correct setting, consult your local Authorized Rockford Fosgate dealer for correct recommended setting for your
specific system.