The strigs arnt metal the feed back happens only when im touching strings
The ground wire inside the bass is loose, not connect, or not connected correctly. Make sure it goes to the CASINGS of all the kobs, the switches, if any, the negative side of the plug socket, and under the bridge. All of these surfaces should be grounded together, the connection under the bridge is necessary to keep from looping the ground with your hands.
SOURCE: My bass buzzes when im trying to record. I plug it
The cause is a lack of proper earth grounding in the 8 track so your jack-lead is acting like a radio aerial. The solution is simple - buy a Direct Injection (DI) box to place between the guitar and recorder.
SOURCE: hey my ax260 strings rattle
Strings "rattling" is usually guitar setup. This has to do with string height and POSSIBLY the neck truss rod. For the latter, have a guitar shop set it up for you. Hum from touching a knob is likely a broken ground wire in the cavity of the guitar. Also view videos on YouTube search "Guitar setup"
SOURCE: After being played for about 5-10 minutes speaker
There are so many things that go wrong with amps. That isn't too much of detail to really say what could be wrong with it. Just take simple steps such as try a new cable. It could also be your bass. Try plugging your bass into another amp and see if it kicks out. If it kicks out, then take the pick guard off and make sure all the wires are properly welded and in tact. If the bass DOES work in another amp with a different cable.
Inspect the amplifier tubes if the amplifier sounds weak or muddy. Amplifier tubes are fragile and may go bad at anytime. Bad or weak tubes will cause the amplifier to be weak, and the tone to become muddy or overly distorted. Sometimes the tubes become loose and fall out of their tube sockets. Look in the back of the amplifier and examine the tubes. Make sure all the tubes are in their tube sockets. Healthy tubes will glow with a soft amber/orange color. Weak tubes emit a bluish/purple color and overpowered tubes are an intense reddish color. If the tube is not glowing, it is broken or burnt out. Replace broken or weak tubes.
Inspect the speaker cables and wires in the amplifier. A loose speaker cable may also be responsible for the amplifier not working. Make sure the speaker cable is plugged in to the amplifier and that the speaker cable is firmly connected to the speakers in the amplifier.
Clean the volume and tone pots on the guitar if the guitar is producing a scratchy sound or no sound when manipulating the volume and tone controls. The guitar pots need to be cleaned periodically because of the sweat, grime and debris that builds up in them. The contamination in unclean pots is what produces the irritating scratchy sound. Pull off the volume and tone tops and spray contact cleaner into the pots. Move the volume and tone controls back and forth to allow the contact cleaner to penetrate more effectively.
Clean the volume and tone pots on the amplifier with contact cleaner. The pots on the amplifier also need to be cleaned. Dirty pots on the amp cause scratchy and irritating noises. Remove the knobs and spray the pots with contact cleaner. Replace the knobs.
then i'd send it to your local music store and try to get it repaired (thats if it's a valuable amp). The only thing you can do is send it into a professional.
Good luck and take care..
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