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 high pass filters?? 
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Joined: March 09 2007, 12:53 PM
Posts: 203
Location: preston, uk
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Post high pass filters??
ok, I have a little project for college, I need to produce a High Pass filter with the -3dB point at 10kHz, which i've done, however the roll off has to be -12dBs/octave. I dont know how to get the roll off from -3dBs to -12dBs?

I was hoping that somebody here in the Stereo section would be able to advise me! :D

1997 1.6 16v DOHC uk spec gs, 17" wolfrace triad, 2.0l probe s/s header magnaflow high flow cat, powerflow custom catback, CAI, zx2 struts w/ -40mm lesjofors springs

February 20 2011, 12:29 PM
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Joined: August 13 2001, 2:01 AM
Posts: 4476
Location: Atlanta, GA.
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Post Re: high pass filters??
Geez, there is only one member on here that I can think of that might be able to answer your ?... and I cannot remember his screen name. However, he used to be on here alot mroe often and is a MX-3 stereo badass. So you might see if you can find out who has posted the most in this section over the years. IIRC he lives/d in Mississippi or Louisianna or somewhere over there.

ZE -strait neck,headers,2.5 exhaust,pheno spacers,lower cross member,GC coils,MS struts,Brembo slotted rotors,filled MS mounts,SS brake/clutch lines, CAI,to rear bat reloc,Hella headlamps,Hella DE fogs 180WHP

February 20 2011, 10:58 PM
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Joined: April 07 2008, 1:06 PM
Posts: 7198
Location: Manitoba
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Post Re: high pass filters??

& maybe

Carolina Cartel

Or the Google Machine.

Now with Moderator power!

Black '93 BP RS - wrecked, parted, scrapped.
Green GS - Sold.
Black GS - Summer DD/Race car - Fancy KLZE
Red GS - K8-ATX -> MTX-KLDE - Frakencar. Scrapped
White GS - Rusty. Parts. Scrapped
1997 BMW M3 - my summer baby
2002 BMW 325Xi - sold
2003 Forester Xti - EJ20K swapped.

February 21 2011, 2:03 AM
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Joined: May 16 2007, 7:17 PM
Posts: 64
Location: N.Carolina
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Post Re: high pass filters??
Thanks for thinking I could answer this question. But I never used a passive crossover network. I only use active crossovers. I can guide you to site where someone maybe able to answer it.

1993 Mx-3 Gs
09 Setup
Headunit: Pioneer DEH-P80MP w/CD-IB100II & 60 gb Ipod
Speaker: 2 pr MB Quart ESA216 6.5" COMPONENT
Subs: 2 Sundown 15" Nightshades
Highs amp: Sundown SAX-125.2
Sub amp: Sundown SAZ-3000D
Electrical: All 1/0 KnuKonceptz Wire Power/Ground, Big 3, 8Ga Speaker Wire, KnuKonceptz Karma RCA's
Dampening: 120sqft 80Mil Thick Sound Destroyer Mat
Goal: 150 DB 149.9 Street Bass

February 21 2011, 9:15 PM
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Joined: December 14 2008, 3:44 PM
Posts: 215
Location: eastern washington
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Post Re: high pass filters??
^ bingo! i know a lot also but man when you get all that technical stuff its a foreign language to me. that is a lot more math and science then i can calculate.


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February 22 2011, 2:13 AM
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