I Have a Bmw Nitro 1200 wat amp with 2 plye 1200watt dual voice coil spearker's and i have everything hooked up right, but when i turn my radio up, My amp turn's on to protection mode. and i dont even have the amp tuned that loud just dosent make any sense any help?
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Re: Amp in Protection Mode
With your multimeter set to DC volts, the black meter lead on the ground terminal of the amp and the head unit on (so the amp will have remote voltage applied), touch the red lead alternately to the B+ and remote terminals of the amp. If the voltage drops below ~11 volts, you need to check the wiring feeding whichever line is too low.
If the voltage remains near or above 12v, disconnect all speaker wires and signal cables from the amp. If it powers up, the wiring needs to be checked. If it still shuts down, the amp likely has blown output transistors.
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i have found the specs to your amp.
1. Amplifier connections: Lets make things simple. As we look at the amplifier speaker connections, we will number the outputs 1 2 3 4 from left to right for the top connections and again 5 6 7 8 from left to right for the bottom connections.
1 should be connected to a positive (RED) (+) on sub woofer A on voice coil (a)
4 should be connected to a negative (BLACK) (-) on sub woofer A on voice coil (b)
Now using a small piece of cable, connect negative of voice coil (a) to positive of voice coil (b)
Follow the same procedure for the other sub woofer using 5 and 8 as 1 and 4
This configuration should make the amp run at 4 OHM BRIDGED x 2.
i hope this helps.
If both subs are dual voice coil, you can wire one voice coil to other voice coil on each sub. Do this by running the ground of each coil to the ground of the other coil. Do the same for the positive. After doing this on both subs, you should have one ground and one positive per sub. Hook one up to the left channel of amp and one up to the right....This should work for you. If your amp plays for a while then goes into protection mode, then it cannot handle the ohm load.
Disconnect all speaker connections and rca cables. Leave power, ground and remote wires intact. Try turning on again. If you still have a protection light your amp is faulty. Hopefully you have warranty
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The 2 sets of terminals are connected internally. Having 2 sets just makes it more convenient when wiring multiple subs. The amp is rated for 900 watts RMS into a 2 ohm load. The specs claim that it is stable at 1 ohm but does not give a power rating.
The Radial SD competition series from Phoenix Gold are rated to handle up to 600 watts RMS. If you have the model RSdC124 with dual 4 ohm voice coils, it would be best to wire the voice coils in parallel for a 2 ohm load and connect the sub to one set of terminals on the amp. If your sub is the model RSdC122 with dual 2 ohm voice coils, you should wire the voice coils is series for a 4 ohm load and connect the sug to one set of terminals on the amp. Wiring the voice coils in parallel will result in a 1 ohm load. And, while the amp may be stable at 1 ohm, the sub will be seriously overpowered.
your running too low impedence, and yes its cuz of your sub wiring. How to wire it depends if its 2ohm dual voice coil, or 4ohm dual voice coil, so i'll explain both. O.K. first of all i hope its 4 ohm so you can get max power from your sub. If it is 4 ohm dual voice coil connect + to +, and - to - on your speaker, then to connect it to your amp, splice a wire into the wire running from + to + and connect it to your amp's + terminal. Do the same with your - wire. If its a 2 ohm dual voice coil, connect the + from one set of terminals on the speaker, to the - on the other terminal. Then to connect it to the amp, plug a wire from the open + terminal on the speaker and connect it to the + plug on the amp, and do, connect the empty - to the - on the amp. Good luck and if you have any questions don't hesitate to ask...