please help me to build a exellent subwoofer filter

badboy6120 · 27th February 2011, 07:26 PM

Hi
I recently have built a 250W mosfet amplifier and I need a very good Low pass filter ( Sub filter ) for it to drive me sub

I tried this one

Low pass filter - Subwoofer

but I want somthing with higher performance
Please introduce me somthing that you've built and it did work
thanks

chris661 · 27th February 2011, 08:12 PM

Active Filters

I used values of 100nF and 15k for C and R respectively. Seems to work fine with my tapped horns. I used TL072 chips throughout, as I needed to cross the subwoofers to my main speakers.

Chris

theresa · 27th February 2011, 08:41 PM

How about just buying a miniDSP and using that as filter and equalization?

badboy6120 · 28th February 2011, 05:06 AM

What's miniDSP?

badboy6120 · 28th February 2011, 07:38 AM

Please someone give me a reliable and tried schematic

27th February 2011, 07:26 PM	#1
badboy6120 diyAudio Member Join Date: Feb 2011 Location: Malaysia	please help me to build a exellent subwoofer filter Hi I recently have built a 250W mosfet amplifier and I need a very good Low pass filter ( Sub filter ) for it to drive me sub I tried this one Low pass filter - Subwoofer but I want somthing with higher performance Please introduce me somthing that you've built and it did work thanks

27th February 2011, 08:12 PM	#2
chris661 diyAudio Member Join Date: Feb 2008 Location: Lancashire Blog Entries: 7	Active Filters I used values of 100nF and 15k for C and R respectively. Seems to work fine with my tapped horns. I used TL072 chips throughout, as I needed to cross the subwoofers to my main speakers. Chris __________________ "Throwing parts at a failure is like throwing sponges at a rainstorm." - Enzo My setup: http://www.diyaudio.com/forums/multi...tang-band.html

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27th February 2011, 08:41 PM	#3
theresa diyAudio Member Join Date: Aug 2009	How about just buying a miniDSP and using that as filter and equalization?

28th February 2011, 05:06 AM	#4
badboy6120 diyAudio Member Join Date: Feb 2011 Location: Malaysia	What's miniDSP?

28th February 2011, 07:38 AM	#5
badboy6120 diyAudio Member Join Date: Feb 2011 Location: Malaysia	Please someone give me a reliable and tried schematic

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