By
trupro
Fri Mar 19, 2004 8:00 pm
Mic preamps bring a microphone level to line level. Also, condenser mics require Phantom Power, in the US usually about 48volts of electricity, to charge the air gap inside the diaphram. With this charged air, they are that much more sensitive. A preamp will usually supply an option to engage phantom power to a condenser mic. Preamps are usually like everything else: you get what you pay for (usually). The cost incured when buying one reflects a few things, but most IMPORTANTLY are: Warmth and Headroom.
Headroom is basically how many decibels you can pump through a mic pre before it peaks. Mackie pre's have very little headroom, (although more than those of a similar price), whereas a Neve channel strip will have tons more headroom available. That's good, cus you are getting more signal to tape, equaling more presence, and a better overall quality.
The M-Audio Tampa is a preamp and compressor in one unit, and sounds like it cost alot more than $600.