The HyDrive HD115 is a versatile bass cabinet. It can fill out the bottom end of a stack or stand alone as a single speaker. Featuring Hartke's patented HyDrive paper/aluminum speaker cone technology, the HD115 delivers tremendous low end with a smooth midrange response for exceptional performance clarity. Rated at 500 watts, the HD115 can handle anything you throw at it. HyDrive Evolved The HyDrive HD speaker design features a two-piece composite cone that combines a straight, anodized aluminum inner cone with a curved, Kevlar?-filled paper outer cone to deliver clean, clear output with extremely smooth response. The double-roll curvilinear surround limits driver excursion while providing smooth midrange response. The result is a clean, full tone with the clear fundamentals of each note, as well as natural harmonics to further define your sound. In addition, a round-wire voice coil and vented former design have been incorporated to provide a nice low-end zing and optimize power handling. Built to Perform The HyDrive HD115 is a front ported, vented cabinet constructed of solid plywood with extensive bracing and dado joints, making it rigid yet lightweight for superior projection and minimal energy loss. In addition, the HD115 features a black perforated steel grille, recessed steel handles, steel corners and removable casters, making it both durable and easy to transport. Features Description: 1 x 15" bass cabinet Power Handling: 500W RMS Impedance: 8? LF Driver: 15" HyDrive paper/aluminum hybrid cone HF Driver: 1" HF Level Control: 3-position switch (-6dB, Off, On) Frequency Response: 45Hz?17kHz (-3dB), 20Hz?17kHz (-10dB) Inputs: 2 x Twist & Lock, 2 x 1/4" (wired in parallel) Cabinet Type: Vented Cabinet Construction: Solid plywood, extensive bracing, dado joinery, textured vinyl covering Grille: Black perforated steel Additional: 2 x inset steel handles, 8 x steel corners, 4 x removable casters Weight: 51.6lb (23.4kg) Dimensions: 24" (618mm) x 24" (618mm) x 15" (381mm)