SW6.5B 6.5″ 250W Subwoofer



Features

The SW series of subwoofers is a powerful 250-500W car audio low frequency subwoofer driver range, available in a dual 2-ohm and dual 4-ohm configuration. It features a high quality double stacked Y35 thick magnet assembly and a 2” high power coil which delivers tremendous low frequency output in compact enclosures.

The paper cone and dust cap provides tight bass response and aids the pole vent with cooling to ensure reliability. Solder pads are provided to ensure a secure connection.


Physical Specifications

Overall Diameter (inches)6.75
Mounting Diameter (inches)6.0
Mounting Depth (inches)4.125
Displacement0.03 ft3
Cone MaterialNon-Pressed Paper
Dust CapPoly
Frequency Range (Hz)40-100
Voice Coil Diameter2”
Net Weight (lbs)10

Recommended Enclosures

For musical listening, a 0.59 cu. ft. (17 litres) net sealed enclosure is recommended.

For higher output, a 1.25 cu. ft. (35 litres) net ported enclosure tuned to 35Hz

When using multiple subwoofers in a common enclosure, multiply the required volume by the number of subwoofers, and use two ports (as specified above) per subwoofer.


T/S Parameters

Fs (Hz)56.0
Qms3.414
Qes0.468
Qts0.412
Vas (Litres)4.54
Xmax (mm)8.5
SPL 1W/m (db)84.2
Continuous Power (W)250
Re (Ω)4.0
Le (mH)7.13
BL12.469

Usage Guidelines

  • Build rigid enclosures using ¾” MDF or thicker.
  • Chamfer the inside diameter of the ¾” MDF for the enclosure’s baffle.
  • Use the recommended power and enclosures for the most reliable operation
  • Use a 33Hz subsonic filter with the recommended ported enclosure.
  • Ensure that all enclosures are securely fastened to the car before driving to prevent damage occupants or equipment.
  • Use the recommended power and enclosures for the most reliable operation
  • Use a subsonic filter with recommended ported enclosures.
  • Ensure that all enclosures are securely fastened to the car before driving to prevent damage occupants or equipment.

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Product Manual Download

Elektra Mobile Audio – Reference Subwoofers