freq setting

[NewToTheGrounds 10+ year member]

im trying to tune my crossover frequency selection(FREQ) on my amp i have a ported box tuned to 32Hz i went through the gain settings for amps and a few others to look for a tut or help with setting freq my dial goes from 40 to 200, im not sure if i missed the tut on it any help would be great or if any one knows a page that can help me learn thanks. there was this but im not sure if its sumthing completely different or what i should be using .

Setting the subsonic filter (if available):

1) Determine the tuning frequency of your enclosure (if using a sealed enclosure, turn SSF off or to minimum frequency)

2) Calculate the desired SSF frequency by using the formula: SSF = Tuning*3/4

3) If number is not whole, round to the nearest integer

4) Write the SSF frequency down

5) Calculate the desired SSF voltage by using the formula: SSF_Voltage = 0.707*Sub_Voltage

6) Write the SSF voltage down

7) Turn the SSF to the maximum frequency

8) Set track to the SSF frequency and set to repeat track

9) Set to volume written down in speaker setting stage

10) Turn down the frequency on the SSF control until you reach the SSF Voltage from step 6

11) Turn the volume down to 0

Click to read more...

 

[XanderMoser 10+ year member]

Crossover frequency is not the same as subsonic filter. Subsonic filter is meant to filter out very low frequencies so that your sub doesn't play them (subs in vented boxes tend to exceed excursion and/or lose control as the frequency extends below the tuning frequency). The crossover frequency for your subwoofer is actually a low pass, while the subsonic is a high pass. The crossover frequency is in the general range of 60-100 hz. The only way to pick a freq is to play with it and see what sounds best.

The lower your speakers can go, the lower you usually have the crossover frequency. If your speakers are not high passed and are bottoming out or distorting from bass, then they need to be high passed.

Once the speakers are high passed, you usually base the low pass for the sub on this frequency, it is slightly lower so that the -3 db points match up so there is no gap in the frequency response. But the only thing that matters is if it sounds good to you, so experiment.

 

[NewToTheGrounds 10+ year member]

thanks alot man //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif great help ill go mess around with it today.

 

[LOUD 4DOOR 10+ year member]

thanks alot man //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif great help ill go mess around with it today.

Dont get the police called on you messing around with it..

My neighbors hate my fricken guts cause of my system

 

[XanderMoser 10+ year member]

thanks alot man //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif great help ill go mess around with it today.

You're very welcome. If you have any other questions, just ask. All the different kinds of crossovers can be kind of confusing, especially without a picture. They might have some good stuff at http://www.bcae1.com if you want to check it out.