Fluance Classic Series 5.1 Surround Sound Home Theater Speaker System with DB150 Powered Subwoofer Premium components ensure serious performance, natural sound and great reliability at an exceptional value; Matched 5.1 speaker system with powered subwoofer for home theater and home audio applications; Audio grade MDF wood construction to reduce cabinet resonance; Ferro-fluid cooled tweeter for longer life Butyl rubber surrounds for increased durability and performance; Tuned bass port for controlled low frequency response and improved efficiency (Fronts); Bi-amp/bi-wire (Fronts) 5-way gold plated binding post terminals for optimum conductivity; Banana plug and speaker wire compatible connectors on all speakers Built-in keyhole slot wall mount hardware (Surrounds); Low diffraction flush fit removable front grilles for spacious imaging; Magnetically shielded to avoid interference with other video products; Floor spikes to isolate speakers from the floor - for use on hardwood or carpeted areas (Fronts) Premium crossovers feature Butterworth design for audio equalization; 18 gauge internal lead wire to reduce signal degradation; 10" long throw driver for longer excursion and better linearity (subwoofer); Thick hi-roll surrounds that support their longer excursion for tight, precise and accurate bass (subwoofer) Compact ported enclosure is only 18-1/2" x 12-5/16" x 16-1/2" for smaller footprint (subwoofer); Integrated 150 watt continuous power high current amplifier (subwoofer); Line and speaker level inputs allow the DB to be connected to any audio system (subwoofer); Adjustable low-pass filter, volume controls and phase switch allow perfect integration into any system (subwoofer); Premium black ash vinyl veneer woodgrain finish to compliment any home dcor