20 Most Recent Dual XAF-460 Car Audio Amplifier Questions & Answers

Earth wire not connected or not thick enough.

internal damage. take it apart and inspect for damage

Ground wire too thin. supply wire too thin. Speaker damaged.

Lights? No? Check power cables. Any sound at all (click, hum)? yes? Check audio cables. Any sound at all (click, hum)? No? Check speaker cables. Check speakers. Is head unit sending audio? Try connecting direct to speakers. Working? Amp has fault. Not working? Head unit has fault or is wrongly wired to amp.

Honestly listen to it buy ear. Thats the best way to "tune" your amplifer and your subs. I would turn your stereo to the desired volume level then start tuning your amp while it's playing. Make sure that you put the signal all the way down to start with and if you want it louder, that the signal level (knob) is the last thing you turn up.

dissconect your speakers and check the resistance on them you may have blown them

If you know how to use a multimeter, you can test the amp this way:

-unhook the subs
-hook up a cheapie speaker you know for sure works to one of the channels
-unhook the audio inputs
-turn the amp on
-set your meter to VDC
-put the positive probe on the inside of the input connector, being sure you make contact with th inner contact
-take the negative probe and tap it on the outside of the connector

What you are doing is sending a low voltage (replicating an audio signal) into the amp audio circuit and allowing the amp to amplify it. If the amp makes the speaker pop each time you strike the probe, the amp is working.

There is an inherent problem with band passes. The naturally filter out high frequencies like a crossover, including distortion, so it makes it hard to hear when the subs begin to protest.

No Simon, that won't work. What you are suggesting is wiring the two horns in series, and that halves the voltage so you would have two horns running on 6 volts. They need to be wired in parallel. A lot depends on how good the horn's relay is and if it can handle the load of two horns. My thought is that it probably will as many vehicles already have twin horns. The positive lead from the relay needs to split and go to the positive sides of both horn, and the negative of the horns to grounds. Ideally, two relays, two horns, two grounds. Look at the YouTube video of the guy that added a huge locomotive twin air horn. It is funny as he goes looking for jay walkers! If I remember he had to install a second battery for it as the load for the air compressor, made the engine stall. ..

GX 1200W 1-Channel Monoblock Class D Amplifier - Phoenix Gold click on manual and download it

You will have to take the CD player apart here in order to get the CD Disc that is stuck inside of the CD player.

Yes. But ... have you knowledge on optimal impedances etc. .......

Audio amps are specialized, the frequency is too low to be used for anything but audio.

You should try on the search engine box on Google car stereo repairs in Arizona then. Jeff's professional Auto repair Arizona and Quality Car stereos Arizona.

videos https://www.google.com/search?q=xdmd9obt+radio+out+of+demo+mode ..

Request the manual directly from Performance Teknique.

Contact Dual directly to request the diagram.

Full wattage or RMS, bridgeable or not .

xerox 5755 serial No. 623959