Solid State Logic XRack Dynamics Module

Why I record with Fraps (or simply unmute mic) does my cheap desktop mic from Best Buy record and two channels and my AKG D5 dynamic mic only record left channel? I can switch mics while recording and it will switch between the one channel and two. The problem could be my cable connection into the sound card. My mic cable on the D5 is a xlr.

A panel of some of the great ones talking about Compression:

I am looking at getting a dynamic EQ, quite possibly Voxengo's GlissEQ, but I do not have a complete understanding of the dynamic aspect. My best interpretation from what I have read is that if the dynamic function is fully engaged, the EQ (say if there is a boost at 2Khz) will only be applied to the peaks and not the average content at that frequency. Is this correct?

If I wanted some compression on my acoustic before it hits my audio interface, could I put a compressor in between the mic and the interface? If so, what are the cons to this idea?

I have a Saffire USB 6 that has two inputs, but only one 48V switch for both ins. If only one of my mics is say an LDC, is there cause for concern with using non 48V mics on the other input, given that there is 48V at this second connection?

The terms dynamic and condenser refer to the two most common forms of professional microphones. Could someone explain this for our readers?

The term "dynamic" refers to any microphone where the source of energy for creating an electrical signal is the sound wave itself. This category includes moving-coil, ribbon and moving-plate designs (used in espionage!).

Dynamic Range - The difference between the loudest and quietest signal levels in a system. In an audio device, usually the difference between the maximum output level and the residual noise floor. In a digital system, the available dynamic range is determined by the data resolution, about 6 dB per digital bit.

such as the sm57? got a friend coming in who insists on using the sm57 for recording his voice and i've never recorded vocals with it before. should i let him sing right on top of the mic with his lips touching the grill like he does at live shows? or should i try to get him to back off 6 inches or so like with condensers ? should i use a pop screen?