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how to Implement a High Pass Filter in my setup

hi all , 
i would like to know what's the best way for me to limit full range signal going to my front speakers. 
and at the same time managing cross over on my two subs. 

in my setup where its source > Digital Coax > DAC > Pre Amp > Amp , i have read that this can be done with a high pass filter. 

i need the flexibility to be able to change the dAc or pre amp or amp depending on my future needs. 

the question i have are
should the cross over setting just be set on the subs themselves?
where does the sub plug into in this signal chain?
if using a high pass filter is the best solution - which one should i get ?


kearkg312
erik_squires
16,895 posts
 
I'm absolutely not good with the idea of running the main speakers full range and grabbing the signal after the amp.  The benefits of limiting the output to the mains is too great.

Split the signal from the preamp, either using multiple outputs, which some preamps have, or a Y cable.

Put a capacitor right before the amp. You'll need to know the input impedance of your preamp and selected high pass frequency.  I suggest 80 Hz.


http://www.learningaboutelectronics.com/Articles/High-pass-filter-calculator.php#answer1
yogiboy's avatar
yogiboy
5,904 posts
 
My preamp only has single outputs so I use a pair of this y-adapter on my preamp to feed the high pass filter going to the subwoofer!
https://www.audioadvisor.com/prodinfo.asp?number=AQM22FHRD
This is the high pass filter that I have used!
https://www.hsuresearch.com/products/high-pass-filter.html
erik_squires
16,895 posts
 
I hope you aren't feeding the sub from a high pass filter! :)

I hope you mean that you send one through a high pass filter to your amp, and the other goes to your sub.
kearkg312 OP
13 posts
 
i have two svs pb13 ultra subwoofers, so if i split the signal at the pre amp , let's say i have only 1 port. 

can i use those a pair of those Yadaptors, run one into the HPF which then goes into the power amp. 
then the other port on the yadaptor, can that go into my sub and can i daisy chain my other sub off the first one?

do i then just set the cross over on the sub ?
erik_squires
16,895 posts
 
do i then just set the cross over on the sub ?


Yes. It may help you to think of a crossover as having two components which are independent.  A high pass component, allowing high frequencies, and a low pass, allowing bass.  In this case they won't exist in the same device, but will work just the same.
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