The Q factor is the width of a frequency the lower the Q factor the wider the frequency the higher Q the more narrow it gets in other words if you only want to push or cut 100Hz use a very high Q if you want to effect the frequencies just below 100Hz and just above 100Hz as well as 100Hz use a lower Q factor.

What should my Q factor be set at?

For most mechanical or electrical circuits, a Q of 0.5 is considered to be optimally damped. A Q of 0.3 would be over-damped, and a Q of 0.7 would be under-damped.

What is Q factor in sound?

Q – (Also called “Q Factor”) – Stands for “Quality Factor,” defining the bandwidth of frequencies that will be affected by an equalizer. ... This often results in additional random frequencies in the sound, often heard as noise.