FB4 is no longer made.

The FB4 gives any Line 6 Digital Guitar Amplifier System simple Channel Select and Tap Tempo control. It's pretty darn nifty looking - with a shiny red anodized metal body. And using it is pretty darned simple.

Step on one of its switches to choose one of the four Channels of your Digital Guitar System.

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FB4 is no longer made.

The FB4 gives any Line 6 Digital Guitar Amplifier System simple Channel Select and Tap Tempo control. It's pretty darn nifty looking - with a shiny red anodized metal body. And using it is pretty darned simple.

Step on one of its switches to choose one of the four Channels of your Digital Guitar System.

You can also access the Tap Tempo function by tapping on the currently lit channel's selector switch. Tap two or more times to set the tap tempo.