Bias King

The BiasKing™ is a simple, effective, and accurate diagnostic tool designed to read the current flowing through the tube of an amplifier. That is, its measuring the bias. The bias on an amplifier can be adjusted by a technician to allow more or less current to flow. The more current there is flowing, the higher the numbers will be on the BiasKing™ and the hotter the tubes will run. The tubes will also sound different depending on where the bias is set. Although the BiasKing™ will not set the bias for you, you can use the chart printed on the side of the BiasKing™ to find out what range of current flow is acceptable for the particular tube type you are using in your amp. To keep your tubes in good shape and your sound consistent, periodically checking the bias of your amp is extremely important. The BiasKing™ is a must have whether you're in a recording studio or on the road.

Download the BiasKing Manual.

For maximum performance and longevity, vacuum tubes should always be stored and transported in a safe and secure fashion. The TubeCube and the TubeCube Pro provide a customizable shock-resistant environment for your tubes and helps prevent them from becoming microphonic or damaged.

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Bias King