so how ah?
RDS pro, Anyone heard of it before
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 Sep 7 2006, 10:34 AM
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Junior Member
59 posts Joined: Jan 2003   
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backside view
so how ah? |
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Sep 7 2006, 03:11 PM
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Senior Member
4,133 posts Joined: Jan 2003 From: Cameron Highlands Rank: Amateur
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QUOTE(mattchin @ Sep 7 2006, 10:27 AM) tai kors... sealed require more powerforgotten that ported woofer box is more power hungry o sealed is? i can't remember..  CaLz: maybe u can take out the woofer and let us c it's backside.. hmm.. 2 channel o monoblock will help u whack these 2 woofers.. try find those wif good power so that the bass will bcome more powerful.. to play safe, get a monoblock cz it might b a 2 ohm setting.. only a few 2 channel amps r stable at 2 ohm.  ported require less power... but u have to built the enclosure more than 1.5cu ft each to feed them nicely... if not the sub can throw also  |
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Sep 7 2006, 06:20 PM
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Senior Member
1,645 posts Joined: Jan 2003 From: aMPanG, KL
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single voice coil.. but dono wat is the impedance..
get a monoblock and u r saved.. try checking @ the garage sales if there is any.. don simply get 2 channel amp cz if u on ur woofer too loud.. the amp sure die 1.. thanks driftmeister and like driftmeister said.. is ur box more than 1.5cu ft? |
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Sep 7 2006, 07:48 PM
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Senior Member
1,919 posts Joined: Jan 2003 From: KL
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i dun think this sub need 1.5 ported enclosure...the biggest is 1.2/1.3 i think....the sub are mean for hard and punchy...not for soft sub bass....
This post has been edited by howiechoo: Sep 7 2006, 07:49 PM |
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Sep 7 2006, 07:50 PM
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Senior Member
4,133 posts Joined: Jan 2003 From: Cameron Highlands Rank: Amateur
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QUOTE(howiechoo @ Sep 7 2006, 07:48 PM) i dun think this sub need 1.5 ported enclosure...the biggest is 1.2/1.3 i think....the sub are mean for hard and punchy...not for soft sub bass.... u probably haven seen ppl using 3.0 cu ft ported enclosure  |
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Sep 7 2006, 07:55 PM
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Senior Member
1,919 posts Joined: Jan 2003 From: KL
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QUOTE(driftmeister @ Sep 7 2006, 07:50 PM) u probably haven seen ppl using 3.0 cu ft ported enclosure it depend on sub, do u think htis sub need so big enclosure? |
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Sep 7 2006, 09:53 PM
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Senior Member
1,645 posts Joined: Jan 2003 From: aMPanG, KL
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QUOTE(howiechoo @ Sep 7 2006, 07:55 PM) it depend on sub, do u think htis sub need so big enclosure? the bigger the better.. it doesn't mean that wat sub use wat size.. |
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Sep 8 2006, 01:28 AM
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Junior Member
59 posts Joined: Jan 2003
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what is ported and what is sealed? how to define it?
please refer to the post #19. got pictire with woofer there. is that ported or sealed? thanks This post has been edited by CaLz: Sep 8 2006, 01:28 AM |
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Sep 8 2006, 01:35 AM
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Senior Member
1,919 posts Joined: Jan 2003 From: KL
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QUOTE(mattchin @ Sep 7 2006, 09:53 PM) the bigger the better.. it doesn't mean that wat sub use wat size.. i was surprised to hear u say tat...:> |
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Sep 8 2006, 02:00 AM
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Senior Member
1,645 posts Joined: Jan 2003 From: aMPanG, KL
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QUOTE(howiechoo @ Sep 8 2006, 01:35 AM) i was surprised to hear u say tat...:> hmm.. u will c a huge difference between a bigger box and a smaller box.. 2 some ppl smaller box may bcome handy but as the matter when u put it into bigger box, u'll hear the difference.. i dono can i put it like this o not.. the bass will b deeper and my feelings(personal) the bass will go further/longer.. (dono how 2 discribe)  |
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Sep 8 2006, 02:09 AM
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Senior Member
1,645 posts Joined: Jan 2003 From: aMPanG, KL
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 modified ur pic aledi...as expert said, ported is more towards SPL (boom boom boom) while sealed is towards SQ (sound quality) there are many studies about woofer box.. many installer don really know about the important about the box as the calculations, this, that, bli, bli and bla bla.. don ever look small on the box instead look it BIG.. |
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Sep 8 2006, 02:56 AM
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Senior Member
1,919 posts Joined: Jan 2003 From: KL
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every sub got it's recommended enclosure size for seal and ported. the size recoommended are for the optimum performance and harmony..if u change the size a bit then it's ok, but not make a 1.5 cu'ft sub to go to 3.0cu'ft..beside the sound will be different, the freq produce and the response of the sub will also different. and there's high chance to damage the sub if heavy load the sub
This post has been edited by howiechoo: Sep 8 2006, 02:57 AM |
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Sep 8 2006, 09:46 AM
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Junior Member
99 posts Joined: Aug 2006
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I though every woofer have to get the spec then messurement on the box. Diff messurement for box come out diff frequency range. Am I right?
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Sep 8 2006, 10:29 AM
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Junior Member
204 posts Joined: Aug 2006
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I have RDS sub, is same like yours, CaLz. But I only using 1 12". This speaker is good for low and tight budget. And I using a 300watt rms amp to power it. I prefer the box on ported, less headache. I was thinking of getting a sealed type, but sealed type box it must be really tight sealed on the edges, if not it is no use.
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Sep 8 2006, 11:38 AM
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Senior Member
1,645 posts Joined: Jan 2003 From: aMPanG, KL
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QUOTE(howiechoo @ Sep 8 2006, 02:56 AM) every sub got it's recommended enclosure size for seal and ported. the size recoommended are for the optimum performance and harmony..if u change the size a bit then it's ok, but not make a 1.5 cu'ft sub to go to 3.0cu'ft..beside the sound will be different, the freq produce and the response of the sub will also different. and there's high chance to damage the sub if heavy load the sub i didn't say like 1.5cu ft then bcome 3.0cu ft larh.. the bigger the box the bigger the power u need 2 withdraw from the amp.. i am like saying recomended size if 1.5 cuft then u make a box like 1.8-2.0cu'ft.. the bass would b more pleasant rather than 1.5cu ft itself o even smaller..  huh.. those budget woofer i always c them in ported.. anybody know wat's the reason? |
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Sep 8 2006, 12:00 PM
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Junior Member
99 posts Joined: Aug 2006
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Ported / vented box more "high bass" on hearing compare to sealed box.
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Sep 8 2006, 12:34 PM
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Junior Member
59 posts Joined: Jan 2003
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so i suppose 300 watt rms amp can power this sub? how about the ohm thingy?
can check one ah? |
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Sep 8 2006, 01:00 PM
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Senior Member
1,645 posts Joined: Jan 2003 From: aMPanG, KL
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there is an equipment to check the impedance.. bigger accessories shop should haf..
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Sep 8 2006, 01:14 PM
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Senior Member
1,919 posts Joined: Jan 2003 From: KL
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a multimeter will do...but this sub is svc so it's 4ohm..as i know rds no 2 ohm sub..
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Sep 9 2006, 01:49 PM
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Senior Member
1,645 posts Joined: Jan 2003 From: aMPanG, KL
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QUOTE(howiechoo @ Sep 8 2006, 01:14 PM) a multimeter will do...but this sub is svc so it's 4ohm..as i know rds no 2 ohm sub.. if this is so.. then the woofer would be either 2 ohm or 8ohm.. find an amp which is 2ohm stabble.. if not u will kill ur amp very fast like wat i haf done b4 |
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