Some engineer in the 1940’s made this statement...”Anything that can go wrong will go wrong.” Imho, in this situation, it would be a safer approach NOT to accept that those cables need to carefully inspected. They are also the simplest thing to check out and repair if needed.I’m suspecting its the amp or attenuator; both speaker cables are thick and high quality, and haven’t given me any issues when I ran the system with one of my other marshalls after this happened - and prior to this incident I’ve had no issues with any part of my rig. The attenuator itself is relatively new and has only been used about a dozen or so times.
If the grounding was lifting on the speaker output Jack, which apparently is a known issue with the Marshall I was using when I got zapped would it result in the shock I got when touching the attenuator?
yeah, I’m using the standard 3 prong plug that came with the amp, no modifications and no ground liftingplug everything back in and start checking continuity to ground.
if your amp has a ground plug (hopefully not removed) and the speaker cable is intact the casing of the attenuator should be grounded too.
Are you lifting ground anywhere to kill noise? Done wrong could be dangerous as well
no, I was wearing my normal soled shoes. But I was on carpet - I live in the PNW so it’s around 50 degrees and relatively dry this weekWith a $2 ground plug adapter from Ace.
Were you barefoot on concrete floor when this happened OR was it a cold dry day and you were on carpet when you touched it?
I will do that.Are you still getting shocked by touching MASS? Was it a one time bite, like static, or was it continuous.....every time that you touched it? Did it shock you even after contact was finally made amp>attenuation>speaker load?
Put your meter on AC volts and check for potential between barrel of cable plug and amp chassis. DC too.