Im getting a hum from my amp, even with the Master Volume set at 0. Whats wrong?
In many cases, this is not a problem with the amp. However – and this is important – if you’re experiencing a very loud hum, possibly in conjunction with speaker motion, this is a Very Bad Thing. In some very rare instances, a combination of power supply &or amplifier faults could cause an unusual level of DC voltage to be present at the outputs. Speakers do not like DC voltage. Immediately disconnect your speakers from the amplifier and have a technician check for DC voltage present at the output. If it is a low level hum, go through this check list to determine the actual cause of your problem. 1. Disconnect your bass. If the hum goes away, it’s either your cord or your bass. NOTE: In some rare cases where the input jack has been damaged, such as by someone tripping over your cable on-stage, the hum may be louder when the bass is not connected to the amp. Check this by plugging your cable back into the amplifier. Then, take the other quarter-inch connector and touch it’s tip to the b
Related Questions
- The LP-MV (London Power Master Volume) kit seems like a very simple solution to controlling volume without tone change. Will I still be able to use my presence and esonance controls?
- Im getting a hum from my amp, even with the Master Volume set at 0. Whats wrong?
- Does the master volume in the amp block effect the tone?
