RW8D2 - Echo Series 8 Inch Subwoofer - 400 Watts Power Dual 2 OHM Voice Coil, 2" Black-coated 4 Layer High Temperature Voice Coil, Competition Grade Pressed Paper Cone

The RW8D2 is an 8-inch dual 2-ohm subwoofer built for reliable daily use, rated at 200 watts RMS with a 400-watt peak capacity. Its ferrite magnet motor and high-temperature 2-inch copper voice coil are engineered to sustain peak output over extended listening sessions without thermal compromise. Compact and efficient, it fits a range of enclosure types and system configurations.

• Dual 2-ohm voice coil — wiring flexibility for 1-ohm or 4-ohm final impedance loads
• 200W RMS / 400W peak power handling — built for sustained daily performance, not just burst output
• 2-inch (50.8mm) high-temperature copper voice coil — resists heat during prolonged high-output use
• 34 oz. single slug ferrite magnet motor — delivers consistent, controlled bass response
• Pressed pulp cone with cotton fibers — balances rigidity and low-frequency excursion capability
• High roll foam surround — supports extended cone travel for deeper, more accurate bass reproduction
• Advanced cooling structural design — improves thermal management and sustained output efficiency

Specifications

• Nominal Impedance: Dual 2Ω
• RMS Power Handling: 200 Watts
• MAX Power Handling: 400 Watts
• Frequency Response: 50–500 Hz
• Voice Coil Diameter: 2" (50.8mm)
• Voice Coil Material: ASV
• Cone Material: Fiber Paper
• Frame: Steel
• Magnet: Ferrite
• Magnet Weight: 96 oz (34 oz)
• Xmax: 8.5mm

Thiele/Small Parameters

• Fs: 36 Hz
• Qts: 0.42
• Qes: 0.48
• Qms: 3.87
• Vas: 14.2 L (0.50 ft³)
• Sensitivity (1W/1M): 83 dB

Dimensions

• Overall Depth: 4.47" (113.54mm)
• Mounting Depth: 4.00" (101.5mm)
• Overall Diameter: 8.47" (215mm)
• Cutout Diameter: 7.17" (182mm)