Help setting crossovers and subsonic filter.

[blusmn7 10+ year member]

Are there any good tutorials out there that I can read? I have a basic grasp on tuning the amp, but I would like a better understanding of where to set the x-overs, boost, SS filter, sensitivity and what exactly those numbers mean. Any help would be greatly appreciated, thanks.

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[blusmn7 10+ year member]

I read the gain setting tutorial. I am more trying to learn and understand crossover frequencies and how to tune them. What is a sealed enclosure tuned to?? How do you figure that out? If a sub has a frequency response of 25 hz-2.0kh would you set it at or around 25 hz? Like I said any tutorial or book you could point me to would be great. If someone would like to go in depth on this subject, that would be great too. I just want to be able to better tune my system and understand it all means. Thanks again.

 

[blusmn7 10+ year member]

Thanks Jmac, What would the tuning frequency be for a pre fab bandpass box? I know you can't calculate exactly without measurements, but is there a norm, as far as prefab bandpass boxes go?

 

[mikechec9 10+ year member]

as a caveat to what jmac was saying, sensitivity deals with how "sensitive" a driver is to power, i.e., how responsive a sub is to a given number of watts. generally, the higher the sensitivity, the fewer watts required to make the driver respond.

the reason that sealed enclosures don't require a ss filter is because the air inside the box acts as a "suspension" for the sub, preventing it from bottoming out and damaging.

your x-over should be set wherever it sounds best to you (within the capabilities of the driver). i've seen subs crossed at 80hz on down to 31hz. just depends on what frequencies you want to hear reproduced from your sub and which ones you don't.

 

[mikechec9 10+ year member]

true. my bad. //content.invisioncic.com/y282845/emoticons/blush.gif.99bc659ee2012b7d826165e26fb5eebe.gif appreciate the correction.