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Dayton Audio ND25FA-4 1″ Soft Dome Neodymium Tweeter This tweeter is smooth! The Dayton Audio ND25FA-4 is a 1″ soft-dome tweeter that combines an exceptionally flat response above 3 kHz with a compact round faceplate for a clean, modern appearance that integrates easily into any design. The tiny yet powerful neodymium motor structure features an aluminum heatsink and ferrofluid cooling for low power compression and improved long-term power handling. A copper pole cap within the motor further reduces distortion and inductance effects. Choose the ND25FA-4 when you need detail that won’t become fatiguing or shrill at high volumes, for a highly refined presentation. The compact faceplate allows for close center-to-center spacing of drivers, making these tweeters perfect for line array use or D’Appolito (MTM) configurations with wide dispersion. Specifications: • Power handling: 20 watts RMS/40 watts max • VCdia: 1″ • Le: 0.48 mH • Impedance: 4 ohms • Re: 3.2 ohms • Frequency Range: 2,500 – 20,000 Hz • Fs: 1,350 Hz • SPL: 90 dB 2.83V/1m • Dimensions: Overall diameter: 2.60″, Cutout diameter: 1.78″, Depth: 1.20″. Overview Dayton Audio’s compact, ultra-smooth ND25FA-4 soft dome tweeter features excellent detail and high power handling. The small faceplate and neodymium motor make it easy to keep center-to-center distance to a minimum for improved off-axis response, and the exceptionally flat response above 3 kHz. Highlights Exceptionally flat treble response with low distortion Compact round faceplate design is simple to install High-strength neodymium motor with heatsink and ferrofluid cooling 1″ diameter voice coil for good off-axis dispersion Clean, modern styling and appearance