Model: TRF SW2165PC D0.5

Size: 21 inches

Cone: Competition Grade Paper

Surround Material: Cotton

Voice Coil: MADE IN USA or MADE IN GREECE

Voice Coil Size: 4.0 inches

Voice Coil Layers: 8 layers

Dust Cap: Carbon

Nominal Impedance: Dual 0.5 ohm

Voice Coil Wire: Aluminum

Spider Size: 4'' ID / 10'' OD

Spider Material: NOMEX

Spider Layers: 5 pieces x 2 layers

RMS Capability: 6,500 wrms

RMS Program: 18,000 wrms

Maximum Capability: 12,000 wmax

Sensitivity: 95 dB

Vas: 250 L

Resonant Frequency (fs): 35 Hz

Frequency Range: 35-100 Hz

Mechanical Q Factor (Qms):

Electrical Q Factor (Qes):

Total Q Factor (Qts):

Xmax: 40 mm

Power Factor: N/A

Net Weight: 46 kg

Basket: Die cast Aluminum

Magnet: Ferrite

Magnet: Ferrite "high performance magnet"

Magnet Size: Φ280*25mm x 3PCS

1=External Dimension: 550 mm

2=Mounting Depth: 330 mm

3=Magnet Dimension: 280 mm

4=Mounting Opening Size: 500 mm