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New member Username: MmmgPost Number: 10 Registered: Sep-05 | Hi, Sorry for the long post I need some advice in upgrading my audio system. What will happen if i bridge an 8 ohm subwoofer. Let us say the amp provides 100 wrms@4ohm...so if i bridge 8ohm sub to this channel will the subwoofer be driven at 200 wrms. I have a cheap quality 4 channel amp made by power acoustik. I want to upgrademy system..so i want to buy a new amp. My budget is limited to $150-$200. So i want to use the present amp and a new amp. I heard some ppl bridging the channels to connect component speakers. But i gues bridged channel provides a mono signal which is useless for a component speaker. Is it so..I have two plans. One is bridge the two 8ohm subwoofer i have to the existing 4 channel amp using all the channels. the amp says it provides 100 wrms@4 ohm and 125 wrms@2 ohm. So if i bridge 8ohm i guess i will be providing 200 wrms to each sub.And buy a two channel amp for the fron speakers. Second option is connecting the subwoofers to a new 2 channel amp and use the old amp to power speakers(using just two channels among 4 channels). Or else get a new 4 channel amp and dump the old one..Most ppl will say that i shuld just dump the old one but my budget is limited so i cannot get a good 4 channel amp for that budget.. and i dont want to waste my old amp. plz give me some best options..thanks |
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Gold Member Username: IlluminatorUSA Post Number: 1749 Registered: Apr-05 | You shouldn't bridge all four channels together. The amp can only handle two seperate bridgings of the four channels at the most. The amp provides 100w rms @4ohms to how many channels? One? Then it should double the power to 200w rms with an 8 ohm speaker. I'm guessing the new amp you want to buy is for your component speakers? Hmm. What are the power ratings (in rms value) of your component speakers? |
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Bronze Member Username: MmmgPost Number: 14 Registered: Sep-05 | i am not using all 4 channels together. Bridging them separately...so r u sure it will provide 200 w rms for these 8 ohm subs..my components are 90w rms cdt cl61a components. which 2 channel amp is good. do u suggest me to get a two channel amp for components...or connect subs to new amp and use old amp for components...thanks |
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Gold Member Username: IlluminatorUSA Post Number: 1753 Registered: Apr-05 | I would suggest you use a new amp for your components...especially seeing as they are CDT. My suggestions for amps? Rockford Fosgate P3002 or P5002 (My first suggestions) Alpine MRV-T320 MTX Thunder342, though I think the Alpines have the edge over the MTX amps in this price range. An Infinity Reference 7520a would work as well, but I don't care for Infinity's amps much. |
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Bronze Member Username: MmmgPost Number: 15 Registered: Sep-05 | i have looked at the amps u have specified....u said u prefer alpine over mtx...but alpine just provides 50X2@4 ohms-12V. Dont u think its too less for the speakers. I dont know..if thats a good output for an alpine.. MTX rms ratings look good but i dont which one is good among them. i heard that new RF amps are not so good as old school RF amps...is it so |
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Bronze Member Username: MmmgPost Number: 16 Registered: Sep-05 | How about this amplifier.......orion 3002. ...http://cgi.ebay.com/ORION-3002-2-Channel-Amplifier-300W-RMS-2Ch-Car-Amp-NEW_W0QQ itemZ5812298674QQcategoryZ18796QQssPageNameZWDVWQQrdZ1QQcmdZViewItem..... Is this a better amp than RF.. Coming to my old amp So can i bridge an 8 ohm suwoofer over two channels and get double the power it produces at 4ohm stereo to the sub. |
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Gold Member Username: IlluminatorUSA Post Number: 1758 Registered: Apr-05 | The newer RF's aren't as good, true, but are still better than the other amps I listed...unless you would prefer to buy an older one. I haven't had enough experience with Orion...hopefully someone else can make a suggestion. Though to me, that would be a good option. |