eraos said:
What exactly does smoke do to speakers and electronics?
Is there something in the smoke that does damage to equipment?
I'm supposing it has something to do with tar?
Yeah, like Seeker said, it's the tar residue and even smoke dust that can cause several problems.
First on electronics, the tar lays a coat on the electronic components (IC chips, resistors, etc.) that acts like an insulating layer, much like a blanket. This coating helps keep in the heat generated by all electronics, causing them to run hotter than normal. This excess heat reduces the life span of the components.
Then there are electrical contact surfaces like faders and rotary pots. The tar gets on these surfaces and tends to reduce the quality of contact between the metal contacts, causing noise and potential signal loss. And anybody who has tried to clean ceilings, walls and yes, even bongs, knows how hard tar and resin deposits can be to clean.
As far as speaker elements, you get that coating on speaker elements and it changes their mass - even if ever so slightly - and therefore their response and performance. On the surrounds, it can affect their flexibility and resiliancy and even possibly - with the right kind of materials - chemically react with it over time; weakening the glue, drying out the surround material, etc. And of course you have the crossover circuitry which can suffer the same effects as any other electronics as mentioned above. This is even more signifigant if they are active monitors with built-in amplifier circuitry to be affected.
And finally, speaking of amplifiers, anything with a heat sink/cooling fins (most power amplifiers and many computer CPUs) will be affected by that same insulating tar in the same way as the circuits they are tyring to keep cool. Cover cooling fins with cigarette tar and they will not dissipate the heat as efficiently.
G.