Ampeg SGT-DI Preamp and DI Stompbox Ampeg SGT-DI Preamp and DI Stompbox | No Limit Guitar Co, Idaho Falls The Ampeg SGT-DI preamp and DI gives modern bassists an entire rig in a single stompbox, combining time-tested Ampeg tone with... MSRP: Was: Now: $399.99 Add to Cart