The Equalize Setup screen can be accessed by tapping on the Equalize screen.
The maximum number of filters to use for correction. HouseCurve will allocate filters until the remaining corrections are outside of the frequency and gain settings.
For a parametric equalizer, set this to the number of filters your system supports. For a convolution engine (ie: using the impulse response), the number of filters just controls the fidelity of the correction. More filters may not make an audible difference.
The frequency range to equalize.
Use the minimum frequency to prevent the algorithm from correcting low frequencies beyond the capabilities of the audio system, ex: trying to boost at 20 Hz when the audio system can barely produce 40 Hz at -6 dBFS. Doing so will lead to distortion and possibly audio system damage.
The maximum frequency can be used to avoid wasting filters on high frequency issues that may not be audible.
The gain range for filters (absolute gain).
Use the minimum gain to prevent the creation of very small (and likely inaudible) filters.
The maximum gain limits the size of a boost or a cut an individual filter can make. HouseCurve may place filters in close proximity to produce larger gains. Keep in mind that a +10 dB adjustment means the audio system has to output 10 times more signal power.