Couple questions on a few head unit settings

[71dodge 10+ year member]

So i think im getting closer to having my setup figured out, I still have a couple questions though. Should i be concerned with any of this?

Setting the Bass Bandwidth (WIDTH (Q))

Turn the Rotary encoder to select the desired bass bandwidth.

WIDE 0.50  MEDIUM 1.00  MEDIUM 1.50  NARROW 2.00

Changes the boosted bass bandwidth to wide or narrow. A wider setting will boost a wide range of frequencies above and below the center frequency. A narrower setting will boost only frequencies near the center frequency.

 Setting the Bass Center Frequency (CENTER FRQ)

Turn the Rotary encoder to select the desired bass center frequency.

60 (Hz)  80 (Hz)  100 (Hz)  120 (Hz)

Emphasises the displayed bass frequency ranges.

Turn the Rotary encoder to select the desired Mid bandwidth.

WIDE 0.75  MEDIUM 1.00  MEDIUM 1.25  NARROW 1.50

 Setting the Mid Center Frequency (CENTER FRQ)

Turn the Rotary encoder to select the desired Mid center frequency.

500 (Hz)  1.0K (Hz)  1.5K (Hz)  2.5K (Hz)  Setting the Mid Level

 Setting the Mid Bandwidth (WIDTH (Q))

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[youdoofus]

of course you should be concerned with this. parametric eq's work pretty differently than graphic eq's. Parametric usually have less bands of adjustment, but allow you to select what band you want to focus your adjustments on and the frequencies around that center one. I guess i could have asked if you knew that already, and if so, what part of this aren you unclear on? The Q is usually what gets people messed up.

 

[71dodge 10+ year member]

Just not sure what to set it to, do you set it depending on type of music? Or is there other determining factors? Any advice on where to start as far as settings?

Im running four jl component speakers and two jl 10" subs in the back. Head unit hpf is set to 80hz, and lpf on amp is set to 80hz

 

[Papermaker85 5,000+ posts]

If you peak/dip is narrow that determines the q you want.

For example if you have a sharp Peak at 120 hertz you want to use the narrow selection or 2.0

 

[youdoofus]

Just not sure what to set it to, do you set it depending on type of music? Or is there other determining factors? Any advice on where to start as far as settings?
Im running four jl component speakers and two jl 10" subs in the back. Head unit hpf is set to 80hz, and lpf on amp is set to 80hz

its usually set to the ear of the listener, as long as your hpf is set around where you have it to avoid sending signals to the fronts/rears that would cause damage, then the rest is really up to the listener. The Q factor is how much the frequencies surrounding the center freq will be adjusted. For example, if your center freq is set to 120 hz and the Q is narrow, then the 100 and 140 hz area wont be adjusted by the +'s and -'s made to 120 hz itself, conversely, if the q is wide in that same scenario, those freq bands will be affected by changes made to the center freq of 120 hz