The NXAMP is Nexo’s flagship 4-channel amplified controller. Users often call it “the Nexo amp with TD functions.” Firmware and software updates for NXAMP produce PDFs of 20–50 pages. If you misremembered “Si” as “NX,” then is what you want.
1-inch or 2-inch compression driver (Original J version used diaphragms equivalent to JBL D16R2425). Nexo Si 2000 Pdf 30