The Fuchs Mantis Jr. Series of amps answers the demand for a heavier sounding amp in the Fuchs line-up. The Mantis Jr. is based on the ODS/Casino sized chassis platform, has two channels with a shared Bass, Middle, Treble tone stack, a passive effects loop, and 4-8-16 ohm outputs and will include a 2-way foot switch for channel switching and gain boost. The two channels each feature a distinct voicing: Channel-1 is a traditional classic English style EQ with tons of gain on tap, cleans up easily from the guitar, and works equally well for chunky rhythm or "brown sound" lead tones. Channel-2 features a higher gain structure with a more strident clipping structure for "modern rock and metal tones".

This amp also features a foot controlled preset gain boost, has both a presence and thrust control which alter the damping and voicing of the high and low end of the power amp section respectively.