The new "e" version of the 500 Series includes:

• 8" model with a 2.5" voice coil and 100 oz magnet
• 10", 12", and 15" models with 3" voice coils and 120 oz magnets
• Top plate 12 mm
• 50% increase in Xmax
• Power handling: 500 Watts (508), 700 Watts (510, 512, 515)
• Unprocessed paper cones with fiberglass
• Taller and thicker EROM surround
• Heavier double-layer lead bars
• New basket and motor boot designs with DD logo
• Free-flow cooling system
• High-temperature voice coil
• Double-layer spider system with integrated lead wires
• Extended Pole Piece
• Double stitch EROM Surround (508e)
• Non-compressed cones with fiberglass load
• Textured DDesign Magnet boot
• 700W RMS (500W RMS 508e)

Specifications:

• Speaker Size (In): 8
• Watts RMS: 500
• Watts Peak: 1500
• Impedance: D2
• VCD (In): 2.5
• Fs (Hz): 44
• Qms: 5.01
• Qes: 0.82
• Qts: 0.71
• Vas (Liters): 4.19
• BL (TM): 24
• Xmech (MM): 22
• Xmax (MM): 14
• Frame OD (In): 8.25
• Frame OD w/ Gasket (In): 8.375
• Mounting Diameter (In): 7.125
• Mounting Depth (In): 4.875
• Motor Diameter (In): 6.125
• Motor Depth (In): 2.5
• Magnet Weight (Oz): 100
• Woofer Displacement (CuFt): 0.04
• Ported Enclosure (CuFt): 0.5 - 1.0
• Shipping Weight (Lbs): 14