Hi all,
In addition to what is already written :
Some condenser-mics (e.g. AKG C1000) can also be powered by an internal (9V) battery.
I would not recommend it for life perfonmances either.
Some advertisements speak about 'condenser-microphones' powered by 1,5V penlite-batteries. In fact they do not tell the truth because these types are 'electret-' (condensor) with average quality.
About damaging :
The Phantom- (plus)potential is present on both leads of a 'balanced' mic-cable. As long as you use the 'balanced' type mics you don't have to worry about any damage to other non-phantom mics.
Balanced mics have 3 connections :
1. Signal (-)
2. Signal (+)
3. Screen (ground)
I agree Scott, the C3000 is not a real musician stage-microphone but absolutely excellent for recording on stage. (choirs, vocals, bigbands etc.) (Y-setup)
The C3000 also is great for theater-amplify-use. (bright, huge cover area)
Roel