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SB Acoustics SB42FHCL75-6 Honeycomb Subwoofer

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The SB42FHCL75-6 from SB Acoustics is a 15 inch 6 ohm subwoofer featuring a lightweight but extremely rigid honeycomb / sandwich diaphragm comprised of a hard paper honeycomb core with glass fibre skins; this unique cone composition offers an extended pistonic action and an unusually flat frequency response. If you are looking for a high output, low distortion sub-bass unit this driver should be on your shortlist.

Key Features:

  • Light weight rigid honeycomb cone (hard paper honeycomb with fibre glass skins).
  • 3″ copper voice coil for improved power handling.
  • Long life silver lead wires.
  • 3"copper voice coil.
  • Vented pole piece for minimum compression.
  • Vented cast aluminum chassis for optimum strength and low compression.
  • Low damping rubber surround for improved dynamic linearity.
  • Non-conducting fiber glass voice coil former for minimum damping.
  • Large motor system.

Basic parameters:

Resonant frequency (fs) 18.4 Hz Nominal impedance (Zn) 6 Ω
Mechanical  Q factor (Qms) 7.4
DC resistance (Re) 4.6 Ω
Electrical Q factor (Qes) 0.32
Max power handling 300W
Total Q factor (Qts) 0.31
Sensitivity (2.83V/1m)
93dB
Equivalent volume (Vas) 462L Chassis diameter
417mm

Here's the full datasheet:

.pdf link

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