In 2007, Fender reintroduced the Vibro Champ as the Vibro Champ XD, part of their "Vintage Modified" series. Aesthetically, the XD is based on the Champ from the blackface era. Unlike the Champion 600, which has a strictly all-tube audio signal path, the Vibro Champ XD's tube circuitry is complemented by a digital signal processor (DSP) that functions as a pre-amp by modelling 16 different amplifiers. The effect of the volume, gain and tone control knobs varies according to the selected amp model. The digitally modelled signal is fed into a class-A single-ended tube circuit, with a 12AX7 output tube driver, and a 6V6 output tube. The amp also comes equipped with DSP effects, including reverb, delay, chorus, tremolo, and Vibratone (there is no spring reverb tank).
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