Is your reel-to-reel tape deck calibrated correctly? If not, it can result in various issues that greatly affect the sound quality and integrity of your recordings, including distorted audio, uneven frequency response, and signal degradation. Bias is the alternating current that is applied to the tape during recording. Through the examination of head alignment, playback levels, meter calibration and playback equalization, the record-head azimuth should be adjusted and aligned with the play-head, so as to duplicate the standard on your reel-to-reel machine. Bias calibration can also be used for specific types of tape. Want to use SM468 tape? That is the more “analog” sounding one. Want to archive for 1:1 copy? That is more a SM900 formulation. How hard to hit the tape (recording levels) matters as well, depending on the type of music. Want zinging highs? Hit it harder. Prefer softer transients? Hit it softer. Understanding the limits of the tape formulation and what sound it produces along the way are key to getting the proper sound to your liking. Bias calibration from Northern Audio can accomplish this for you via our resident expert, Greg Keller. Call us today to learn more at: 412.931.5850 or email us now!