From the Manufacturer
The self-powered VT4882DP Dual 15″ Subwoofer is designed to deliver high quality sound reinforcement of sub-low frequencies for live music and a variety of other applications. Typical uses include concert audio and multi-media presentations of all types. Ideal companion to VT4888 or VT4888DP midsize three-way systems. The VT4882DP is a self-powered, lightweight, centrally vented sub-woofer enclosure housing two long extension 15″ woofers and a JBL DrivePack™ DP3 fully integrated power and DSP electronics package. The DrivePack DP3, developed in harmony with Harman Professional development partners, brings to the VERTEC DP Series cutting-edge technologies such as patented high efficiency Class-I power amplifier technology from Crown and onboard digital signal processing that gives not only unmatched audio quality and performance but also onboard DSP functionality that communicates readiness and operational status and monitors fault detection of components and electronics. Advanced 15″ LF components, each fitted with dual voice coils, provide high output capabilities with an advantageous power-to-weight ratio. Enclosure features: foam-back perforated steel grille; speaker cones treated with weather-resistant compounds; rigging tubes and hinge bars made from premium-grade alloy aluminum; cadmium-plated hinge pins; stainless steel quickrelease pin restraining lanyards; and protective end-caps which safeguard the suspension hardware while allowing vertical stacking of multiple interlocking units. VT4882DP rigging hardware (same as in the companion midsize VT4888DP full-range system) relies on quick-release pins and end-mounted metal frames to couple adjacent units together in rigid but flexible arrays. Enclosures can also be stacked vertically using the integral end-mounted pads.