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Nick, about the phantom-powered input thing (I'm explaining this from the bottom up, just to avoid you have to ask more questions because you're confronted with incomprehensibel technobabble again): most microphone inputs on consoles (and also on interfaces, like the Firebox) have a feature called "phantom power", which is used to supply a voltage to microphones which need them (condenser microphones). Other (modern) microphones (like e.g. a SM58) which don't need that supply are unaffected by it, hence the term "phantom". (see also e.g. http://en.wikipedia.org/wiki/Phantom_power) Now if you connect your audio interface to a microphone input with phantom power switched on, what will happen depends on the interface you're using. In case of the Firebox (and I assume of most other interfaces), you damage the output. Note that this only applies a) if you connect your interface's outputs to a microphone input (e.g. in live situations) b) you don't use a DI box between your interface and the microphone input, and c) phantom power is switched on on the input you're connecting to. Basically, it will typically happen in live situations when the sound guy has for some reason turned on phantom power and you forget to explicitly tell the sound guy to check that phantom power is switched off. About your RCA to 1/4 converter question: I found that for transmitting line level signals in live situations (and non-super-high-end home recording situations as well) is a simple task with regard to the cables and connectors involved. The problem you may have usually relates to mechanical stability of cables and plugs (and this, of course, especially in live situations). The converter plugs you're looking at look ok to me. One thing I found is that you should stay away from female-1/4 to male-RCA converters, they are not reliable mechanically. Best, Rainer ps: one thing I noticed in your messages: Looper's Delight is a "plain text" newsgroup. You're sending all of your emails as HTML text; you might try to change that in your email program.