S1MHE S1M-HE Product code: s1m-he Solid-state preamp Ultra-linear frequency response High-end components Mute switch Pre section inspired by the LMII and SA450 The S1M-HE preamp module features the standard-setting sound characteristics that have driven the international success of our top-selling Little Mark II and SA 450 amplifiers but upgrades the components to the highest level, including gold-plated circuits. This is the choice for those who are discriminating about extreme sound fidelity! It's a solid-state preamp with a warm and natural sound that faithfully reproduces the tone of whatever instrument you play through it, without adding coloration. The S1M preamp features an unbalanced input (usable for both passive and active basses), gain control, clip LED, and a mute switch.