The Mosky CLASSIC M-SHALL is an analog preamp and distortion pedal with built-in speaker simulation, part of the maker's CLASSIC Series. The speaker simulation is not a bolted-on extra: RockBoard's PedalPedia describes it as an integral part of the CLASSIC Series circuitry, with each model in the series tuned to match the speaker and cabinet of the amplifier it is named after1.
What it does
As a preamp and distortion pedal, the CLASSIC M-SHALL shapes drive and tone, and its speaker simulation handles the cabinet part of the chain. RockBoard's PedalPedia says the simulation is designed for a smooth, even response, the kind a multiply-miked cabinet would give, without the peaks, valleys, and notches associated with single miking1. In practice, that means the pedal is intended to take the place of both an amp's preamp section and its speaker character, which is why the series pairs each distortion circuit with a matching simulation.
The CLASSIC Series approach
The CLASSIC M-SHALL is one model in a series where the speaker simulation is tuned per pedal. Other CLASSIC Series pedals in Mosky's range include the Mosky CLASSIC AC-30, and the maker's broader distortion line covers a range of amp-flavored drives such as the MOSKY PLEXI-M DISTORTION and the Mosky RED BROWN Distortion1. For a wider view of the category, see Preamp Pedals, Distortion Pedals, and Speaker Simulation Pedals.
Power and setup
The pedal runs on 9V DC, center negative, and draws 10 mA1. That current draw is low enough to sit comfortably on a shared pedalboard supply alongside other compact pedals.
Videos
Barnstormer001
FFamily21 Show
The Guitar Effect
Sources (2)
- CLASSIC M-SHALL by Mosky, RockBoard PedalPedia, 2026
- CLASSIC M-SHALL SPEAKER SIMULATION_Hand-Built Effect Pedals_Products_mosky pedal, moskyaudio.com









