A Question Im sure Jack Frost can answer.

[Rattlebrain 10+ year member]

I friend of mine gave me a pair of these a few years back. I think they were a high pass cap for my mids. But I dont remember for sure. I do remember when I used them, when I would crank my system, it would send my amp into protection. If I played it at about 3/4 it was fine. What the hell are thes for sure???

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[creater 10+ year member]

http://www.the12volt.com

i think i saw a cap calculator on this site...check and see

 

[RandyJ 10+ year member]

Uhh, 120microfarad caps I believe.

 

[RandyJ 10+ year member]

http://www.the12volt.com

i think i saw a cap calculator on this site...check and see

Why would he need a cap calculator?

 

[Rattlebrain 10+ year member]

Uhh, 120microfarad caps I believe.

Its use?? Seriously. Im just a noob when it comes to somethings and ain't ashamed to admit it.

 

[RandyJ 10+ year member]

Its use?? Seriously. Im just a noob when it comes to somethings and ain't ashamed to admit it.

Well, capacitors ar enot only used for stiffening voltage in certain set ups. If you look at the internals on an amp you wuill notice there are many caps, they can be used for filtering out certain frequencies. Do you really want to know how?

 

[RandyJ 10+ year member]

Well, capacitors ar enot only used for stiffening voltage in certain set ups. If you look at the internals on an amp you wuill notice there are many caps, they can be used for filtering out certain frequencies. Do you really want to know how?

Just to clarify, they are electricity storing devices, but they can be used for filtering. The filters an amp has are basically caps.

 

[B_Master_Flash 10+ year member]

That could be used as a simple, 1st order high pass crossover. Although I wouldn't know the freq.

 

[Rattlebrain 10+ year member]

Wll what I was told on this one was to put it in line with my mids speakers, and it would cut out the low freq.

Guessing that is not right

 

[Logikalliquid 10+ year member]

Wll what I was told on this one was to put it in line with my mids speakers, and it would cut out the low freq.Guessing that is not right

Thats exactly right. It would keep the mids from playing what the sub should be playing. I dunno what freq. it would start the attenuation at though.

 

[Rattlebrain 10+ year member]

Thats exactly right. It would keep the mids from playing what the sub should be playing. I dunno what freq. it would start the attenuation at though.

Thank you for the answer now if I can just find out at what freq

 

[Rattlebrain 10+ year member]

EDIT: Unnecessary and pointless post.

Did I say something wrong??

Oh and apalogies to everyone with a helpful answer. I thought Jack would jump right in the middle of this.

 

[RandyJ 10+ year member]

Thats exactly right. It would keep the mids from playing what the sub should be playing. I dunno what freq. it would start the attenuation at though.

From what I understood, capacitors can be used as HPF's, I believe the LPF's are inductors and caps together. So this alone would probably not be used to block out frequencies so low that a subwoofer should be playing them.

 

[RandyJ 10+ year member]

Did I say something wrong??Oh and apalogies to everyone with a helpful answer. I thought Jack would jump right in the middle of this.

NP, Jack knows his shit but there are others here who can help as well. Im getting ready to enter the Electrical department in the Engineering College at Old Dominion. I've been trying to teach myself electronics for the last two years. Some of my information is wrong but a lot of the time I know the answer when it comes to a simple question. And ALL of the time, I am open to correction, so if my post about the LPF and HPF is wrong and somone is willing to show me why, I take it in //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[Logikalliquid 10+ year member]

using the calc on 12volt.com 120mfd = ~330hz @ 4ohm

Yeah, this wouldn't be used for a hpf on a midrange unless you ran a midbass too possibly.

EDIT: Nooblet, sorry if it sounded incorrect, I meant to say it was a high pass filter.