The 302 is an ultra-clean two channel dual mono preamp for use in critical digital and analog recording situations. For optimum sonic performance and lowest possible noise, route the 302’s output(s) directly into the tape machine or recording device’s line input(s) as opposed to going through a mixing console. This approach eliminates unnecessary noise and coloration, also most built-in mic pre amps on the small portable recorders and computer sound cards are rather noisy, using the line input and a good clean mic-pre will almost always result in a cleaner sounding recording.