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New member Username: DelishiousPost Number: 1 Registered: Dec-05 | hey im a newbie, not to car audio but to this forum. i want to put some highs in my car.i want to know if you could wire this. lets say we have an amp of 120rms x 4 @4ohms i dont want components!!if each channel of the 4 channel amp is used to power a coaxial and a seperate tweeter and they are both rated at 4ohm. does that mean the amp is powering them at 4ohm but is just powering 60rms to the each one? or is the amp running at 2ohms or something? |
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Silver Member Username: TjmutlowPost Number: 745 Registered: Sep-05 | 2 ohms, 4+4=2ohms |
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New member Username: DelishiousPost Number: 6 Registered: Dec-05 | so your saying if i run the 4ch amp to 8 4ohm speakers the amp will run at 2ohms? |
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New member Username: DelishiousPost Number: 8 Registered: Dec-05 | which means that at 2ohms the amp will provide twice the power which will be 240rms x 4 @2ohms but since its 8 speakers its more like 120 x 8 @2ohms.right? |
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Silver Member Username: TjmutlowPost Number: 746 Registered: Sep-05 | what 8 speakers, 2 sets of tweeters and 2 sets of speakers, if so then yes, run 1 tweeter(with a bass blocker) on each channel with the speaker. it will provide a 2ohm load per channel on the amp. it will produce wattage x 4@2ohms.... |
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Bronze Member Username: DelishiousPost Number: 11 Registered: Dec-05 | do these come with a bass blocker?it says it comes with an internal crossover. http://cgi.ebay.com/BRAND-NEW-600-WATT-NIOBIUM-DIGITAL-CAR-STEREO-TWEETERS_W0QQi temZ5847677859QQcategoryZ14943QQrdZ1QQcmdZViewItem |
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Bronze Member Username: DelishiousPost Number: 12 Registered: Dec-05 | can all 4 ch amps be run at 2ohms or do i have to look at its specs?and when amps are run at 2ohms.there rms is doubled, right? sorry for all the questions.its just that all that ohms stuff confuses me.thanks for all your help.appreciate it. |
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Silver Member Username: N2audioLawrence, Ks USA Post Number: 135 Registered: Mar-04 | all 4 channels can run at 2 ohms. |
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Silver Member Username: N2audioLawrence, Ks USA Post Number: 136 Registered: Mar-04 | yes, those tweeters have a crossover, but the specs say 18db/oct even though with just an inline cap it can only be 6db/oct. Then again, with a brand like cuspid you have to expect lies. |
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Bronze Member Username: DelishiousPost Number: 14 Registered: Dec-05 | yeah i know those tweeters suck but they can get extremely loud. i still dont know if the rms is always exactly doubled at 2ohms or is it just increased a bit. The 4 channel amps never show their rms rating when it is 4 x ? @2ohms. |
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Anonymous | its theoretically doubled at 2ohms. but in reality, 2 ohms will be close to double RMS output than 4 ohms. |
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Silver Member Username: Islandboy808Mililani, Hawaii US Post Number: 438 Registered: Nov-05 | dude i personally herd those tweeters and dam i was suprised,they are loud and ok sounding for the price.and u only need to power it off the deck.it has a 25 watt max at 4 ohms.if u wanna run it higher then 25 watts u need to add a 15-ohm/20 resistor on the positive wire.but dude dont let these tweeters fool you they sound good especially for that price and thats all that matters. |
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Bronze Member Username: PelonaPost Number: 54 Registered: Dec-05 | yeah those tweeters are badass!!! but i thought they were 300 max each not 25 max. i think you mean 25rms. |
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Silver Member Username: Islandboy808Mililani, Hawaii US Post Number: 483 Registered: Nov-05 | nope it says 25 max at 4 ohm |
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Silver Member Username: Islandboy808Mililani, Hawaii US Post Number: 484 Registered: Nov-05 | trust me i have a set |
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Bronze Member Username: PelonaPost Number: 57 Registered: Dec-05 | where does it say that? i only see 300max. |
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Silver Member Username: Islandboy808Mililani, Hawaii US Post Number: 493 Registered: Nov-05 | pelon if u have a set its on the inside of the packaging there u go u only look at the rms ratings not max,lol thought u would have learned that by now. |
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Bronze Member Username: PelonaPost Number: 69 Registered: Dec-05 | i already know that max doesnt matter. rms is what counts.its just that it doesnt say rms.i thought it was around 100rms. lol but yeah, i just opened them and it say 25 rms max. do you know how to connect them to the deck. i got 5 pairs off ebay for like 18bucks but i only want to use two pairs. im not really sure how to connect them. |
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Silver Member Username: Islandboy808Mililani, Hawaii US Post Number: 498 Registered: Nov-05 | just hook them up to your door speakers.it only needs power from the deck |