Add this additional speaker for high-quality stereo sound from your Evoke-1S Marshall. Features a matching full-range 3" drive unit, is bass-ported & has a 1.5m cable. Designed to match your radio in style & finish. Please note that the S-1 Marshall speaker is only compatible with the Evoke-1S Marshall radio. It is not compatible with the previous Evoke-1XT Marshall radio.