A high excursion, fiber-glass reinforced 8" woofer utilizing EMF with high-motor force design, this combination creates increased linear output with control. App based tuning includes auto-EQ function with digital room correction and DSP. The result is a subwoofer series with best-in-class fidelity for any source of audio. Design technology meets premium performance The Proficient FRS Signature series subwoofers takes the innovation of Sunfire subwoofers and builds on that legacy. Elegance and performance are crafted into a compact space efficient high powered cabinet. All in a familiar yet modern design maintaining the distinguished 5 layer piano black lacquer finish.