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Author Topic: pano gumawa ng DIY passive crossover or dividing network?  (Read 1729 times)

Offline mice

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pano gumawa ng DIY passive crossover or dividing network?
« on: August 25, 2010, 02:19:12 PM »
may nakita kasi ako sa olx at sulit kaya lang mahal ang benta nila.nasa 1k+ .pan0 po ba gumawa ng do it yourself x-over?ty
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pano gumawa ng DIY passive crossover or dividing network?
« on: August 25, 2010, 02:19:12 PM »

Offline insomartin

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Re: pano gumawa ng DIY passive crossover or dividing network?
« Reply #1 on: August 25, 2010, 02:34:38 PM »
^ kung passive X-over mas ok na bumili kna lang. less than 1000- lang yun.
go active x-overs. madami sa internets. (black magic yan kung nasa 1k+..)

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Re: pano gumawa ng DIY passive crossover or dividing network?
« Reply #1 on: August 25, 2010, 02:34:38 PM »

Offline insomartin

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Re: pano gumawa ng DIY passive crossover or dividing network?
« Reply #2 on: August 25, 2010, 02:38:24 PM »
anyways... antay tayo nang masters.
mahirap ba i compute ang high mid low rc lc circuit nito?

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Re: pano gumawa ng DIY passive crossover or dividing network?
« Reply #2 on: August 25, 2010, 02:38:24 PM »

Offline mice

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Re: pano gumawa ng DIY passive crossover or dividing network?
« Reply #3 on: August 25, 2010, 02:45:55 PM »
wala po kasi ako alam sa elektroniks e.gusto ko lang po palakasin pa yun mga tweeters ko.ang hina kasi,
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Re: pano gumawa ng DIY passive crossover or dividing network?
« Reply #3 on: August 25, 2010, 02:45:55 PM »

Offline Mhavskie

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Re: pano gumawa ng DIY passive crossover or dividing network?
« Reply #4 on: August 25, 2010, 03:07:32 PM »
Kung hindi mapalakas sa treble, Palitan mo na lang yung mga tweeters mo. ;D
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Re: pano gumawa ng DIY passive crossover or dividing network?
« Reply #4 on: August 25, 2010, 03:07:32 PM »

Offline labgruppen

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Re: pano gumawa ng DIY passive crossover or dividing network?
« Reply #5 on: August 25, 2010, 03:49:30 PM »
eto..
http://sound.westhost.com/lr-passive.htm

pero imho, baka wala ring magagawa yung passive crossover sa sitwasyon mo. may possibilidad kasi na ang problema ay nasa ibang parts ng chain. baka sadyang mahina ang high freq response ng amp/preamp/source mo. o di kaya tama lang ang response, pero ang high freq boost ng tone control mo ay way too low for your taste.. anyway, i hope the link is of help.

Offline rdpzycho

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Re: pano gumawa ng DIY passive crossover or dividing network?
« Reply #6 on: August 25, 2010, 03:54:47 PM »
^ agree. kasi kung polluted ng lows 'yung tweeter, hindi siya dapat magiging mahina, parang sabog ang tunog niya. mahinang power lang ang kailangan ng tweeter para maging kasing-lakas ng tunog ng hundreds of watts na Bass.
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Re: pano gumawa ng DIY passive crossover or dividing network?
« Reply #7 on: August 25, 2010, 04:01:05 PM »
9.0   Conclusion

This article has covered the topic in far more detail than you will find in most references, and explains some of the things that most articles don't even touch upon. One thing that should be quite clear by now, is that a full 3-way passive crossover, with everything done properly will be very expensive to build. It is also time consuming, and the final result will only ever be as good as the effort you are willing to put into getting everything right.

http://sound.westhost.com/lr-passive.htm

Offline mice

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Re: pano gumawa ng DIY passive crossover or dividing network?
« Reply #8 on: August 25, 2010, 05:35:55 PM »
mga sir,wala po kasi EQ ang amplifier ko high pass/lowpass filter lang po.mumurahin lang po ang mga tweeters ko. 2 crown t-123 na 200w at 2 din na crown t-003 200w din. yung t-123 na model ay puro "hiss" lang.mas malakas pa ung t-003 at di lang xa hiss.may boses din na parang speaker. wla na kasi ako mabili na kapareho ng t-123 kaya t-003 nalang nabili ko as additional tweeter.lahat yan puro crown
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Offline labgruppen

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Re: pano gumawa ng DIY passive crossover or dividing network?
« Reply #9 on: August 25, 2010, 06:46:50 PM »
anong value ng capacitor na gamit mo? paano nakawire/nakaconnect ang tweeters mo? mga tweeters mo pala ay "piezo" type. mga piezo type  is more on the higher frequency band sya, kapos sya sa "higher mid". for more response on "higher mid" use voice coil type na tweeter. yung de-magnet. dome tweeters are decent sounding. and if you are the "kalansing" type of listener, go with the horn tweeters.
dome tweeters
http://crown.ph/index.php/product/search/tweeter#prodome
horn tweeters
http://crown.ph/index.php/product/search/horntweeter#horn

simple series capacitor for tweeters will do just fine for most listeners.

from http://www.colomar.com/Shavano/crossover6db.html
if your tweeter is 8ohms, you could use the following as reference.

Cutoff freq     Capacitance
1k               19.9uF
2k               9.9uF
2.5k               7.9uF
3.2k               6.2uF
4k               5uF
etc..

Offline mice

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Re: pano gumawa ng DIY passive crossover or dividing network?
« Reply #10 on: August 25, 2010, 09:30:46 PM »
yung mga tweeters ko po ay wala pang mga capacitor.kaya nga po nagtatan0ng ako dito kasi balak ko lagyan para lumakas pa.gusto ko din po makalansing.gusto ko din po ng makabog like megabass kaya lang wala akong subs at woofer.ung bigay sakin ng ninong ko na 2 horn tweeters ht-33 na tig-150w ay may caps.gold xa.dko alam ung value.kaya lang mahina. mas malakas pa ung t-123 ko.
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Offline mice

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Re: pano gumawa ng DIY passive crossover or dividing network?
« Reply #11 on: August 26, 2010, 04:24:20 PM »
mga sir,ma'am alam nyo po ba kung ano ang tawag sa coil na tinutukoy dito? http://www.the12volt.com/caraudio/cross.asp
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Offline mice

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Re: pano gumawa ng DIY passive crossover or dividing network?
« Reply #12 on: August 27, 2010, 07:33:56 AM »
tanong ko lang po kung need pa po ba ng resistor sa hi pass low pass x-over?if need what value? my amplifier is 200w, my speakers 100w x 2 ( 4 ohms each ). tanong ko lang po kung ilang value po ba ng resistor nid ko para dun? baka po kasi maling value mailagay ko e pagmulan pa ng sunog at pati ampli at mga speakers ko ay masira.
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Re: pano gumawa ng DIY passive crossover or dividing network?
« Reply #12 on: August 27, 2010, 07:33:56 AM »

 

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