The new Preamp Guide is the place to start when deciding how to put together your preamp. When you find a configuration that looks right for your bass, you would order it by adding the preamp package in blue, the filter package(s) in yellow, and the switch package(s) in red.
The systems shown are common examples, so if they don't fit you application exactly, then you can order the parts individually in the store's Á la Carte menu.
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