ST350:Tweeter Super
ST350:Tweeter Super

ST350:Tweeter Super

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The Selenium by JBL ST350 is a super tweeter for outstanding detail and clarity in high-frequencies without harshness. The ST350 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 50 x 50 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: 150 watts RMS/200 watts max
  • Nominal Impedance: 8 ohms 
  • Voice Coil Diameter: 42mm
  • Frequency Response: 2,500-20,000 Hz 
  • SPL: 111 dB 2.83V/1m
  • DC Resistance: 6.2 ohms 
  • Voice Coil Winding Length: 2.2 meters
  • Voice Coil Winding Depth: 2.9mm
  • Sound Dispersion (H x V): 50 x 50 degrees
  • Diaphragm Material: Phenolic
  • Flux Density: 1.7 T
  • Volume Displaced by Tweeter: 0.7 I
  • Magnet Weight: 470g
  • Net Weight: 1420g
  • Connectors: Push Terminal
  • Front Baffle Cutout Diameter: 106mm
  • Depth: 98mm
  • Magnet Diameter: 102mm
  • Magnet Height: 14mm

Package Contents:

  • ST350 Selenium Speaker
  • Owner's Manual