Model: TRF SPL SW1870NDGE D0.7

Size: 18 inches

Cone: Carbon from Europe

Surround material: Foam

Voice coil: Made in the USA

Voice coil dimensions: 4.0 inches

Voice coil layers: 8 layers

Dust cap: Carbon from Europe

Nominal impedance: D0.5

Voice coil wire: Aluminum

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

Spider material: NOMEX

Spider layers: 5 pcs x 2 layers

RMS Power Handling: 7000wrms

RMS Program: 20,000 - 25,000wrms 3 seconds MAX

Maximum power: 14000wmax

Sensitivity: dB

Revc: 1.000 Ω

Fo: 51.211 Hz

Sd: 123.786K M²

Md: 450.000K g

Mechanical factor Q (Qms): 1.578

Electrical factor Q (Qes): 0.196

Total factor Q (Qts): 0.174

BL: 1.064K TM

VAS: 30.510M M³

Cms: 14.022n M/N

Krm: 27.990m Ω

Erm: 0.593

Mms: 688.829K g

Mmd: 1.000 Kg

Kxm: 44.615m H

Exm: 0.550

Xmax: 31mm

Power factor: N/A

Magnet weight: -Oz

Net weight: 40kg

Basket: Die cast Aluminium

Magnet: Ferrite

Magnet dimensions: Φ280*25mm x 3 pcs

• Outer dimensions: 450mm
• Mounting depth: 310mm
• Magnet dimensions: 250mm
• Mounting hole dimensions: 425mm