Phoenix Gold Xenon 1200 mono not pushing subs and making noise.
I have two 12" PG Xenon subs wired at 2 ohms each. I have had my setup for over a year already and have not had problems until today. This morning I turned on my car and noticed that my subs were making a huming noise. I checked all of my wirirng and everything is fine. I turned off the car and I hear a loud thump from the subs. I tested my amp with new RCA's and the sound was still there. I noticed that the sound only comes when I hook up the RCA's to the amp. I have my RCA's seperate from the power cable and my ground is properly connected, so I know this is not the problem. I also noticed that when I turn up the volume I hardly hear any sound coming from the subs, The subs look like they are bumping, but the sound is very low. I tested each sub seprately and I get the sound from both. I don't the think there is anything wrong with the subs. I checked myre wiring on them and everything is properly connected. Can someone please help?
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Re: Phoenix Gold Xenon 1200 mono not pushing subs and...
This sounds like a problem with the head unit output to the sub amp. Are you using a Pioneer head unit? If so, you may have a problem with some surface mounted fuses inside the radio on the main board. Certain Pioneer head units have a common problem with these fuses blowing. They are fuses for the ground on the RCA outputs.
Let me know if this is the case, and if it is I can give you the part number of these fuses and tell you where they are located, but you would need good soldering skills to replace them. Also let me know what model number your head unit is.
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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.
ok, connect the amp positive to the positive end of one sub coil, take the negative of that coil, and run it to the positive of the second sub coil, then run the negative out of the second sub coil to the negative of the amp.
That depends on what impedence the subs are. If they are 4 ohms each then just parallel them to the amp + to + and - to - on both of them that will give you a 2 ohm mono load which is fine for that amp.
Parallel would be the best way to wire them. 2 4 ohms subs to one channel wired parallel would be a 2 ohm load for that channel and if u wire them series then 2 4ohm subs to one channel would be an 8 ohm load for that channel.
Sometimes problems like this are caused by tiny strands of wire in the amp. These can cause catastrophic amplifier failure. If you pull the cover off of the amp, you should be able to see the strands (if they're present). If that's not the problem, you should send the amp back to PG for repair.
Before you pull the cover, completely disconnect power from the amplifier.
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 . Remember to disconnect all power including ground for about to 1/2 hour to discharge capacitors. You might get lucky and get a reset.
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