This Heart of Mine (Chicago Stars Book 5)

Sundown Audio SA-18 V.2 D4 SW-SAV218D4 18 in 2500-Watt Peak/1250-Watt RMS Car Subwoofers, DVC 4 Ohm, 2.75 in Voice Coil, Cast Aluminum Frame, 2-Piece

Sundown Audio SA v.2 D2 18" Competition Subwoofer - 1250W RMS / 2500W Peak, Dual 2-ohm, Vented Gap, Patented Cast Frame, Deep Bass for Ported/Sealed – SA18v2D2

Sundown Audio NS-18v6-D1 18" 3000W RMS Dual 1-Ohm Subwoofer

Sundown Audio M18 Car Subwoofer – 18" Dual 2 Ohm, 2000W RMS/4000W Peak, 3" Aluminum VC, 35mm Xmax, Mega Roll Surround, Quad Magnet Motor, Low-Distortion SPL Sub

Sundown Audio M18 Car Subwoofer – 18" Dual 1 Ohm, 2000W RMS/4000W Peak, 3" Aluminum VC, 35mm Xmax, Mega Roll Surround, Quad Magnet Motor, Low-Distortion SPL Sub

Sundown Audio NS v5 18 D1 18" Nightshade 3000W RMS Dual 1-Ohm Subwoofer

Sundown Audio Z V.6 18 D2 18" 2500W RMS Dual 2-Ohm Subwoofer Bass Speaker

Sundown Audio X-18 v3 D1 18" 2000W RMS Dual 1-Ohm Subwoofer