Author Topic: Need Help with DIY Subwoofer (Read 880 times)

nelman · « **on:** June 14, 2010, 01:15:03 PM »

hindi DIY lahat. Nakita ko lang sa ebay yun LM3886 x 3, mono output. Tanong lang, pwede ko ba gawin subwoofer amp to?
Kung pwede, pano kaya gumawa ng power supply para dito?

At kung sino man nakakaalam kung ano pa dapat ko gawin para makagawa ng active subwoofer.

Salamat.

Philippine Electronics Forum · « **on:** June 14, 2010, 01:15:03 PM »

danny · « **Reply #1 on:** June 14, 2010, 01:28:02 PM »

may thread dito sound amplifier ang title
search mo iyon dahil may schematic diagram para
sa ic na LM3886
if you want to build a subwoofer system then add a
lowpass filter

Philippine Electronics Forum · « **Reply #1 on:** June 14, 2010, 01:28:02 PM »

BANNEDMemberAccount · « **Reply #2 on:** June 14, 2010, 01:46:06 PM »

http://www.electronicslab.ph/forum/index.php/topic,6297.msg311596/topicseen.html#msg311596
yan yong thread problem lang sa component ng low/high pass filter, but working na yan naikabit ko na yan sa sasakyan ko gumamit lang ako ng dcdc converter 12 to 35v, maganda ang sound malinis ang tunog . sa tulong yan ni sir danny at woots at marami pa para mabuilt

Philippine Electronics Forum · « **Reply #2 on:** June 14, 2010, 01:46:06 PM »

danny · « **Reply #3 on:** June 14, 2010, 02:03:31 PM »

thanks red sonjah for posting that

Philippine Electronics Forum · « **Reply #3 on:** June 14, 2010, 02:03:31 PM »

nelman · « **Reply #4 on:** June 14, 2010, 06:51:01 PM »

salamat sa mabilis na reply nyo.

bibilhin ko na lang yun finished kit na lm3886 x 3.

sa pagkakaintindi ko, tatlong lm3886 na parallel to, bale ang output ay 150w more or less.

tska ko na iisipin yun low pass filter mas nalilito kasi ko sa power supply.

may idea ba kayo pano ko magagawa un power supply para sa tatlong lm3886 na to?

http://www.virtualvillage.com/150w-3-x-lm3886-mono-channel-audio-amplifier-board-new-007901-024.html

Philippine Electronics Forum · « **Reply #4 on:** June 14, 2010, 06:51:01 PM »

BANNEDMemberAccount · « **Reply #5 on:** June 14, 2010, 07:09:37 PM »

parang very simple ang pagkakabuilt, ganda. smd ba yong ibang components niyan. wondering ano kaya ang style ng groun ding niya? kasi IC ginamit nde transistorize

nelman · « **Reply #6 on:** June 14, 2010, 09:49:09 PM »

Oo, smd nga yun mga resistor. may difference kaya sa sound quality kung subwoofer lang naman ang application?

Philippine Electronics Forum · « **Reply #6 on:** June 14, 2010, 09:49:09 PM »

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