Question about Rockford Fosgate Car Audio & Video
Need to know how to bridge my 10 inch speaker for the best sound using the kicker amp
Posted by Anonymous on
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Posted on Jan 02, 2017
The right speaker will connect to the R+ and R- terminals and the left speaker will connect to the L+ and L- terminals. Only one speaker per connection. If both speakers are not exactly the same brand, part number,size, etc. then they may NOT sound the same. Be sure to watch the polarity of the speakers so they don't interfere with each other. I.E. speaker + to amp + etc. Good luck.
Posted on May 11, 2007
Yes and no lol. I sold that product about three or so years ago. That amplifier is whats called a mono amp. The outside shows two channels but they are still tied together. Think of it as a hose with a Y on it so two lines can run out from it. Its still the same amount of water whether you use both hoses or not. So bridge it if you want to but it will for looks and looks only. Note that amp is only two ohm stable so be careful what woofers you use. You will want two single 4 ohm woofers for a regular instalation. DO NOT USE Dual 4 ohm speakers Good Luck
Posted on Nov 17, 2007
For best results the output resistance of the amplifier must equal the combined resistance of the speakers. So if the amps says 8 ohms and you have two 4 ohm speakers you put them is series or if the amps says 4ohms and you have two 8 ohm speakers put them in series. If it says 4ohm and you have two 4 ohm speakers best to use only one. It Depends on the output resistance of the amps. It is usually written at the terminals where the speakers are connected.
Posted on Sep 08, 2008
SOURCE: two terminals? bridging theory?
Hello again jm129852,
Having two power and ground terminals allows you to run two smaller wires instead of one big one. It's a convenience. No, you do not have to use them both. They are connected together inside. Yes, you should still use a single fused battery lead. Connect the big wire and fuse holder to the battery and to a distribution block and run the smaller wires from the output side of the distribution block.
When you connect the outputs of a two channel amp to two separate speakers, each speaker gets the power produced by it's channel only. If you are using only one speaker, and the amp is rated to operate bridged, then the speaker will receive the power from both channels, typically twice as much. You do need to be careful when using bridged mode because many amps will only operate safely at a higher impedance when bridged. For example, when operated with both channels connected to separate speakers (not bridged), it may be stable to 2 ohms. But when you connect both channels together (bridged), it is only stable to 4 ohms. Usually, the specifications will tell you the lowest impedance at which the amp should be operated. The specifications for the current RF Punch 500.2 are like this: 125 watts X 2 at 4 ohms; 250 watts X 2 at 2 ohms; 500 watts X 1 bridged at 4 ohms (4 ohm stable in bridged mode). You would NOT want to connect two 4 ohm subs in parallel to this amp in bridged mode. It would result in a final 2 ohm load and the amp would overheat and fail. One 4 ohm sub would be OK, and it would receive the full 500 watts as stated in the specifications. You could connect four 4 ohm subs, two each in parallel to each channel, and the 2 ohm loads on each channel would be OK. Or you could series two of them together for an 8 ohm load, do the same with the other two, and then parallel the two 8 ohm loads for a final impedance of 4 ohms and connect them into the bridged terminals. With DVC subs the connection possibilities get more complex. There are many good impedance calculators online that can help you determine the best wiring solution for various amp/sub combinations. I like the one above at the12v.com web site. Rockford-Fosgate also has one which allow you to select the a number of subs (up to 4), their voice coil configuration (single or dual), and the voice coil impedance. The RF calculator then shows you what configurations are available and what your final load impedance will be.
Hope this helps.
Posted on Apr 28, 2009
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