Input jack sounds when plug is halfway in

Have you checked the battery? Put a brand new one, if that's not the problem, take it to a reputable tech.

Hi Chris,
This is a discontinued product for the work station. Digitech does have a firmware update on their website. Have you tried that? Other then that, usually a bad guitar cord, dirty input jack or faulty input jack caused the cracking sound. These units sit on the floor where dirt and dust collect. Try spraying the input jack with a good quality conduct cleaner. (Radio Shack?) Make sure your guitar jack is also clean and then "exercise" the input by plugging the cord in and out several times. I am assuming this may help since it is the most simple approach. Otherwise, it may be a component issue and that cannot be addressed via email.

IF your Laptop has a stereo LINE 1/8" INPUT jack, you can take the Stereo ( Left & Right ) LINE outputs on your mixer and feed into this jack on your PC. You will need a 1/4" dual plug for the mixer end to a single 1/8" stereo plug on the PC end. I suspect the problem you are having is either related to your PC only have a MIC input jack or you have something set wrong in your PC's sound config. file. More information is needed to properly solve the problem.

You MAY have a broken input jack. If you can hear changes from the overdrive gain control, that control is just one stage away from the input jack. Also there is a capacitor C60 that is for RF bypassing and if that shorts that will kill the audio. Yes, inout jacks get destroyed by tripping over guitar cables... that is why you run the cord through the amp handle before plugging it in. Of course verify your guitar and cable is good using another amp.

Plug your guitar into the input and a cord from one or both outputs to the inputs of whatever you are using. Meant to be run in stereo for best sound. Two guitar amps?

You likely have a bad input jack. A VERY common thing with these. They don't like to work on the jack because one has to remove too much to replace it. Lazy shop! Sometimes the solder has just broken loose or the board pads damaged. Replace the jack anyway as they take a beating.

Find a shop willing to work on it properly and DON'T accept it back until it is fixed!

Another problem with amps can be the preamp output jack switch which fails to close leaving the amp dead... but it usually won't hum much when that happens.

HINT: Loop your instrument cord through the handle so when you trip and yank on the cord it won't break the input jack... saves a lot of jack repairs!

The Cube 60 is a guitar amp, Often these problems are due to a damaged inout jack on the unit. People trip over the guitar cable and the cord gets yanked sideways and breaks the internal parts of the jack. Sometimes circuit boards are cracked.

ALWAYS run your cord through the handle or restrain it should the cord be yanked.

The problem with your unit is internal and it will need to be opened and trouble shooting done.

It sounds like a failure in the preamp stages, but fortunately you can do a lot of troubleshooting externally.

Drive the "power amp input" jack with another source of audio that has some reasonable output... like a small CD player. If this works (no mind the level, just the quality, that will verify if the power amp is OK.

If the power amp is OK, the use the preamp out to another amplifier.

If it is OK, then the Power amp input jack switch MAY be bad, When nothing is plugged into these, the preamp is sent to the power amp by a switch on the power amp input jack.

If you do these tests, you can email me the results and I will give further tests to run.

Bridge the preamp out to the power amp in with a short cable while suppling signal to the input..

IF that works, the switch on the power amp input jack is bad. You can try increasing the spring tension, but frankly these jack are poor quality

You could run it that way with a short cable or open the unit to do the repair.

Make sure you have a ground prong on your power cord. Most input jacks nowadays are closed circuit. They have a switch built in that won't allow any sound without the cord plugged in. You may have a damaged jack that will give you a loud hiss, a loud hum or crackling depending on what volume your controls are set at.