Author Topic: Infrasonic Filter sa subwoofer (Read 1824 times)

iCapacitor · « **on:** January 22, 2008, 12:41:47 AM »

meron na akong crossover network sa buong sound system ko. may nag-suggest sa aken na kelangan pa daw ng infrasonic filter. kelangan pa ito o kahit hindi na? saan pwede bumili neto?

Philippine Electronics Forum · « **on:** January 22, 2008, 12:41:47 AM »

Shey · « **Reply #1 on:** January 22, 2008, 08:42:34 PM »

Pag high power ang system mo kailangan ang "infrasonic filter" kasi yung mga sounds na less than 20 Hz ay gumagawa ng too much mechanincal vibration na posibleng hindi kayanin ng speaker cone mo.. The end result would be a damaged speaker cone.. ang subwoofer na kaya mag-handle ng less than 20 hertz na sound is yung rotary subwoofer, servo-motor driven passive cone or yung servo-motor driven vane type subwoofer..

Philippine Electronics Forum · « **Reply #1 on:** January 22, 2008, 08:42:34 PM »

express · « **Reply #2 on:** January 25, 2008, 03:36:52 PM »

main use is to cut-off low frequencies. May mga subwoofer kasi na di kayang mag re-generate ng sound at low frequencies kaya nag kakaroon nga ng vibrations- distorted ang labas. Bukod sa nakakasira ito ng speaker - leakage din 'to sa power amp mo.

Either use mo ung mga proposed subwoofer type ni Electron o gumamit ka ng IF. Pwede na yung may cut-off freq. below 30Hz.

Philippine Electronics Forum · « **Reply #2 on:** January 25, 2008, 03:36:52 PM »

necoleis · « **Reply #3 on:** January 29, 2008, 11:20:30 PM »

san po nilalagay ang inrasonic filter sa inpu ng amplifier or sa mismong speaker?

necolei

Philippine Electronics Forum · « **Reply #3 on:** January 29, 2008, 11:20:30 PM »

marcelino · « **Reply #4 on:** February 11, 2008, 12:35:25 PM »

interesting ha... saan nga ba nilalagay ang infrasonic filter?

Philippine Electronics Forum · « **Reply #4 on:** February 11, 2008, 12:35:25 PM »

Shey · « **Reply #5 on:** February 11, 2008, 11:47:33 PM »

same thing sa crossover networks.. kung gusto mo ng "Active design", ilalagay mo yan after sa preamplifier and before sa main-amplifier.. Kapag "passive design" naman, ilalagay mo ang infrasonic filter before sa speaker terminals..

jong143 · « **Reply #6 on:** February 27, 2008, 04:15:24 PM »

may schematic po ba kayo nito??

j a y k e z · « **Reply #7 on:** February 27, 2008, 05:55:27 PM »

may nagawa po ako subwoofer predriver sa book na electronic enthusiast
try nyo po maganda din

jong143 · « **Reply #8 on:** February 27, 2008, 07:36:23 PM »

Quote

may nagawa po ako subwoofer predriver sa book na electronic enthusiast
try nyo po maganda din

pa-share ng schema...

j a y k e z · « **Reply #9 on:** February 28, 2008, 12:35:51 PM »

Quote from: jong143 on February 27, 2008, 07:36:23 PM

pa-share ng schema...

soweee
nawala ko po ung copya ko eh xerox lng kc

Philippine Electronics Forum · « **Reply #9 on:** February 28, 2008, 12:35:51 PM »

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