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Silver Member Username: Thomas_gNM Post Number: 168 Registered: Oct-05 | Sup i cant get rid of my port noise. Ive tried to even out the shape of the ends of the port but still theres an annoying port noise. My port is 3" by 6.5". Should i put a 4" wide pvc port instead of my 3" pvc port? If i should how long does the port have to be? Thanx guys.... |
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Gold Member Username: RovinTrinidad & T... Post Number: 7166 Registered: Jul-05 | i can honestly say no pvc boxes i made has ever had port noise " shape of the ends of the port" - u meant u sand papered the edges round/smooth ? u could prolly try 4" but it will be considerably longer & u will have 2 put an elbow on the pipe inside the box 4 it 2 fit ....... |
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Silver Member Username: Thomas_gNM Post Number: 171 Registered: Oct-05 | Yes i sand papered the edges round and as smooth as i could. Do you know around how much longer i would have to make it if i put a 4" port? Rovin since nobody seems to be in the amp section right now can you answer my ? about voltage? Optidriven said i could get about 923 watts rms out of that lanzar amp at 14 volts i dont know any thing about voltage or what he is talking about but i think my car batterys voltage is 12 volts so is that what hes talking about? Will i not get as much power out of it with my car battery? Sorry so long but thanx for all your help Rovin....... |
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Silver Member Username: Thomas_gNM Post Number: 172 Registered: Oct-05 | Rovin would you know what cuft of volume would be best for each chamber for my 12" kicker cvr's and what to tune the port to? Thanx. |
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Silver Member Username: Thomas_gNM Post Number: 173 Registered: Oct-05 | im probably wrong my car battery is probably 14 volts my bad. |
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Gold Member Username: RovinTrinidad & T... Post Number: 7168 Registered: Jul-05 | u will have 2 consult the spec sheet of that sub cause i cant say much about it www.the12volt.com has pvc calculators about that other technical stuff i'm not versed in it as those other guys ....... |
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Silver Member Username: Thomas_gNM Post Number: 174 Registered: Oct-05 | It cool man youve helped me alot with other stuff so thanx. If they said it for surely puts out about 923 watts rms it would be a good match for my kicker cvrs if their rated at 400 rms right? Is their a possibility that i could put my 2 12" dual 2 ohm cvrs to make a 4 ohm load? Thank you very much. |
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Gold Member Username: RovinTrinidad & T... Post Number: 7169 Registered: Jul-05 | http://www.the12volt.com/caraudio/woofer_configurations.asp |
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Silver Member Username: Thomas_gNM Post Number: 175 Registered: Oct-05 | so is the answer no? It doesnt show. Can i put it to a 8 ohm load and get the same power than a 4 ohm load? |
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Silver Member Username: Dustin3Tigard, Or U.S. Post Number: 731 Registered: Oct-05 | for my comp vr's my box is tuned to 32 hz. with pvc port.i think the box is like32 across, 16 high and 16 depth, or sumthin. |
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Silver Member Username: Thomas_gNM Post Number: 176 Registered: Oct-05 | what if i put 1 of my cvr 2ohm subs in 1 load and the other in 4ohm and put in series that will make a 5 ohm load right? Then could i put out that 923 watts rms even if thats not a 4 ohm load on the amp but instead a 5 ohm load will it work? Will there be less power to them? Thanx. |
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Silver Member Username: Dustin3Tigard, Or U.S. Post Number: 735 Registered: Oct-05 | if the amp put out the power @ 8 ohms.... i would go up that high. just get 2 dual 4 ohm subs and wire it to a 4 ohm or 1 ohm load. |
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Silver Member Username: Dustin3Tigard, Or U.S. Post Number: 736 Registered: Oct-05 | yes it would. you dont want to get into changes impedences on two diff subs. things can go wrong. the amp will be working in ways that its not supposed to, trying to handle a 1 and 4 ohm load. |
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Gold Member Username: RovinTrinidad & T... Post Number: 7171 Registered: Jul-05 | ya i too wouldnt try something like that cause i do stuff by the book but thats just IMO ....... |
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Gold Member Username: BestmankindLos Angeles, CA USA Post Number: 3520 Registered: Oct-05 | i've never heard port noise. what kinda sound does it make? is it like a whistling sound or something |
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Silver Member Username: Dustin3Tigard, Or U.S. Post Number: 738 Registered: Oct-05 | yea. from what i have heard it is a whisling type sound. you could imagine how annoying that would be |