Experience vintage magic with this Warm Audio four-channel microphone preamp. Each channel features a tone switch, letting you choose between a neutral, open sound or a warmer, more classic console tone. This Warm Audio four-channel microphone preamp features unique custom transformers to provide an extended low-frequency response and employs a vintage winding technique for increased smoothness. | Warm Audio | | Four-Channel Microphone Preamplifier | Black | Best Buy