7 Driver Audio 12 in. High Power Deep Bass Sub-Woofer with Dual Voice Coil – 4 x 2 Ohm

This speaker is ideal for only the lowest bass notes. The speaker has two sets of voice coils which can be used in series or parallel depending upon the system requirements. When combined in a sound system it is suggested that you accompany this speaker with a midrange and tweeter setup. 12-in Diameter Dual Voice Coil High Power Woofer This speaker is ideal for only the lowest bass notes. Musical power: 800 + 800 Maximum Watts 4 Ohms Impedance x 2 Frequency response: 20 to 1000 hz. Resonance frequency: 28.161 hz. Cone effective area sd: 0.0471 sq.m. Equivalent volume vas: 69.456 l. Compliance cms: 220.073u m / n. Mass diaphragm mmd: 139.246 g. Total mass mms: 145.132 g. Bl product: 16.512 tm. Q mechanical qms: 10400. Q electric qes: 0.311. Q total qts: 0.302. No efficiency reference: 0.48%. Sensitivity at 1w. 1 m -free-air: 88.854 db. Resistance: 3.2 + 3.2 ohms / vdc. Nominal impedance: 4 + 4 ohms. Excursion of the cone without distortion x max: -/+ 11.0 mm. Flow density in gap: 6.500 gauss. Musical power: 800 + 800 Watts. Rms power: 400 + 400 Watts. The thiele-small parameters are obtained after a sinusoidal level of 20hz is applied for a period of 30 minutes with the coils in series. Mechanical parameters:. Nominal diameter: 12 inches. Ferrite diameter: 169 x 24 mm. Coil diameter: 2.5 inches. Coil height: 26 mm. Coil wire material: copper. Coil wire section: round. Coil body material – Dupont Kapton polyimide film. Gap height: 9 mm. Housing material: aluminum. Ferrite material: barium. Weight: 8.5 kg. Volume occupied in the cabinet: 3.0 liters. Kapton registered trademark of dupont.

• 12-in Diameter Dual Voice Coil High Power Woofer
• This speaker is ideal for only the lowest bass notes.
• Musical power: 800 + 800 Maximum Watts
• 4 Ohms Impedance x 2
• Frequency response: 20 to 1000 hz.