JBL / Selenium / by Harman  ST400 BLK Super Tweeter.

Super tweeter for outstanding detail and clarity in high-frequencies without harshness.  The ST400 BLK may be used individually in lower power systems or arrayed for increased coverage and SPL in higher power systems

Specifications :

• Impedance (ohms) - 8
• RMS (W) - 150
• Musical Program (W) - 300
• SPL 1W @ 1m (dB) - 111
• Frequency Resp. @ -10dB (Hz) - 3.000 to 20.000
• Voice Coil Diameter - 1.7 (42)
• Sound Dispersion HxV - 40° x 40°
• Magnet weight (g) - 15 lbs (430)
• Diaphragm – Phenolic Annular        
• Housing material - Plastic
• Overall Outside Diameter- 6"(152.4mm) x 4.75"(120.55mm) (See pics).
• Mounting Depth - 3.5" (88.9mm) (See Pics). 
• Weight - 3.75 lbs

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