Channel Strips: A channel strip is comprised of a number of signal processing tools including a preamp, usually followed by a compressor, an EQ section, and in some cases a de-esser or an enhancer (exciter). If you’re recording vocals, for example, this gives you every processing tool you need for professional vocal recording in one convenient and cost-effective unit. Since all the electronics are housed inside the same box (as opposed to being patched from separate preamp to compressor to EQ, etc), the chances for noise are diminished.