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Vifa Peerless BC25SC08-04 Tweeter

Vifa / Peerless BC25SC08-04 4Ω soft dome tweeter, high output.

This high efficiency tweeter features a 4 ohm 25 mm voice coil, high energy NdFeB Neodymium magnet assembly, a damped textile dome and ferrofluid in the magnetic gap for enhanced cooling of the voice coil - further cooling is achieved via a heatsink bonded to the magnet. The BC25SC08-04 has a compact horn loaded faceplate (70mm diameter) with recessed mounting holes, and comes complete with a foam sealing gasket to reduce vibration. The upper frequency range extension is very good with a commendable off-axis response.

A full datasheet can be downloaded from the bottom of this page.

Key Features:

  • 25mm damped textile dome
  • NdFeB Neodymium magnet
  • Ferrofluid cooled voicecoil
  • Extended upper range
  • High efficiency 94.9 dB

Basic parameters:

Resonant frequency (fs) 1663 Hz Nominal impedance (Zn) 4 Ω
Effective diaphragm diameter 25 mm DC resistance (Re) 2.79Ω
Ferrofluid ? Y/N Yes RMS power handling 100 W
Recommended crossover 2.5 kHz 12dB Faceplate diameter 70mm
Sensitivity (2.83V/1m) 94.9 dB Cutout hole diameter 44mm

Here's the full datasheet: 

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Peerless by Tymphany