The Expandotron-ZZ is a modified version of the Expandora pedal, which is considered one of the original boutique pedals. While it may not exactly replicate Billy Gibbons’ tone from ZZ Top, it can certainly help you achieve a similar sound.One notable change in the Expandotron-ZZ is the replacement of the original DIP switches with external toggles. This allows for easy access to all the different modes the pedal offers, including Crunch, Overdrive, Distortion, and the unique Forbidden mode, which can be a lot of fun to experiment with. If you prefer, you can also make the switches internal by sourcing some 5mm pitch slide switches.In terms of components, the obsolete optocoupler used in the original pedal has been replaced with the more readily available H11F3. While there may be a slight difference in sound, it is unlikely to be noticeable to most ears.The latest version of the Expandotron-ZZ, released in February 2022, also incorporates the optional bass mod found in the Godlyke reissue. This modification enhances the pedal’s performance when used with bass guitars, providing a nice improvement in tone.Overall, the Expandotron-ZZ is a versatile and enjoyable pedal that can deliver a range of crunchy and driven tones. Whether you’re a fan of ZZ Top or simply looking for a high-quality drive pedal, the Expandotron-ZZ is worth considering.

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