ST304:Tweeter Super
ST304:Tweeter Super
ST304:Tweeter Super

ST304:Tweeter Super

Regular price $69.99 Sale price$49.99 Save 29%
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The Selenium by JBL ST304 is a super tweeter for outstanding detail and clarity in high-frequencies without harshness. The ST304 may be used individually in lower power systems or arrayed for increased coverage and SPL in higher power systems. The bullet-shape horn design offers a longer throw 40 x 40 degree dispersion. The cast aluminum housing is stable and durable. The phenolic annular diaphragm is long-lasting, cost effective and more natural-sounding than metallic diaphragms. The use of high-temperature materials and adhesives improves power handling and produces exceptionally high acoustic output. A precisely engineered diaphragm structure and alignment mechanism for easy, reliable, cost effective repair in case of diaphragm failure.


  • Power Handling: 40 watts RMS/80 watts max
  • Nominal Impedance: 8 ohms 
  • Voice Coil Diameter: 46mm
  • Frequency Response: 3,500-18,000 Hz 
  • SPL: 106 dB 2.83V/1m
  • DC Resistance: 6.0 ohms 
  • Voice Coil Winding Length: 2.9 meters
  • Voice Coil Winding Depth: 2.2mm
  • Sound Dispersion (H x V): 40 x 40 degrees
  • Diaphragm Material: Phenolic
  • Flux Density: 1.38 T
  • Volume Displaced by Tweeter: 0.5 I
  • Magnet Weight: 320g
  • Net Weight: 1100g
  • Connectors: Push Terminal
  • Front Baffle Cutout Diameter: 109mm
  • Depth: 63mm
  • Magnet Diameter: 102mm
  • Magnet Height: 10mm

Package Contents:

  • ST304 Selenium Speaker
  • Owner's Manual

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