Help me solve static electricity problem


Lately I keep sending my Classe Amp and/or conrad-johnson preamp into protection mode simply by touching anything in my system. A loud pop goes through my speakers and it's very, very disconcerting. I'm smart enough to try to touch something metal before touching my rack, but this does not always work. Apparently I'm not smart enough to solve this condundrum, though. Any ideas????
vhiner
I had exactly the same situation with a CJ preamp (Premier 17LS2) and "solved" it only by getting an Aesthetix Calypso and selling the CJ. Mine muted itself even when I touched the SPEAKERS. I tried everything, even had anti-static copper tinsel (very festive) strewn around everywhere. I've had static problems since then, but not nearly as severe, and attacked them with reasonable success using room humidifiers (plural). I tried this with the CJ in place, too, but replacing it, which I loved for its sound, was the only way to go, for me.

The temporary fixes -- antistatic guns, clothing, rugs, shoes, sprays, incantations -- made me feel like I was attacking the problem but didn't do a whole lot to overcome it. Oh, and there's one other thing that will fix everything: the coming of spring. Good luck, Dave
Vhiner,

Like others have said just add humidity to the room.
The static charge is a good warning the air in the room is too dry. Really dry air can cause damage to wood speaker cabinets as well as fine wood furniture. I would also think the dry air would not be good for a driver speaker surround.

Buy a humidifier as well as a humidity sensor.

Example of a humidity sensor.
http://www.indoorhealthproducts.com/humidity-sensors-buying.htm
You're right, Jea48, but there are room humidifiers and there are room humidifiers. The TWO Bionaire units I had originally were only barely able to keep the relative humidity above 30% in my listening room and I could still mute the CJ preamp by touching it, a tonearm, the front of a tape deck, or practically anything else in the system made of metal.
I have switched to a wool rug for the sonic benefit, happy with it but am getting a similar effect in the very dry conditions of the cold weather we are having. I can unmute my MF M3 amp just by touching it. This, obviously,is not a desirable effect but has not risen beyond the irritating level so far. However, a friend had a CD player damaged by something similar so there is some cause for concern. Moisture should help as suggested above, I have one of the old static guns and I think I will try using it on myself before I touch the amp. I just thought of this, it is surly an improvement on my my original plan of a long ground wire attached to my posterior.
Vhiner - when you touch metal (case) in your system static creates huge current that is "looking" for very fast (nanoseconds)return to earth ground. It always finds many returns and current divides in order of paths' impedance. In your system case ground connects to conditioner (cable inductance) and then from conditioner to wall outlet (again cable inductance). It gets worse when cables are longer (like 6') because folded cable has even more inductance than straight one. To lower this big current going thru your PCBs circuit grounds (and creating voltage drops)and then transformer's capacitance to neutral of power cable - lower inductance of your chassis ground return by grounding it separately with short wires to earth ground (ideal if close)or third prong of your wall outlet. Use star grounding of all components (do not daisy chain grounds). Verify that your outlet's box has good ground return (conduit might be loose etc.) Use decent gauge (at least 16) since currents are huge and thicker wire has a little lower inductance. After that, there will be still multiple return paths during static discharge with one going thru PCBs' grounds and circuitry (this is more like wave that goes everywhere) but current ratios will be different and your protection might stop triggering.