Quick Overview The Z-Series is designed for high fidelity, high output, and ease of installation. The TS-Z10LS4 10" subwoofer will handle up to 400 W RMS. The shallow basket design allows installation in places where an ordinary subwoofer will not fit. The oversized dual-layer cone of Twaron aramid fiber and cellulose fiber supported by a tough butyl rubber surround delivers accurate, hard-hitting bass notes even when the music is turned up loud. The lightweight die-cast aluminum basket provides an incredibly stable housing for the subwoofer, without any coloration. Its 4-Ω voice coil makes it a great match for most amplifiers.