Dayton Audio ND25FN-4 1" Silk Dome Neodymium Tweeter Element 4 Ohm

Manufacturer Part Number: ND25FN-4

Dayton Audio's ND25FN-4 compact soft dome tweeter element features high output and smooth, low-distortion sound. The high-strength neodymium motor features an aluminum heat sink for cool operation and reduced power compression.

Key Features:

• 1" treated silk dome diaphragm
• Faceplate-free design enables versatile custom mounting
• High-strength neodymium motor with heatsink and ferrofluid cooling
• Extremely smooth and extended treble response beyond 22 kHz
• Perfect for use with a waveguide or custom mounting plate
• Great replacement for car door tweeters

Dayton Audio ND25FN-4 1" Silk Dome Neodymium Tweeter Element 4 Ohm

Dayton Audio's ND25FN-4 is a versatile 1" tweeter element for use in highly customized applications requiring smooth, clean treble output. The treated silk dome diaphragm delivers excellent detail and smoothness, while the high-strength neodymium magnet enables high output from an extremely compact size. The rear-mounted heatsink and ferrofluid-filled magnetic gap provide improved heat dissipation from the compact motor structure, for reduced power compression at high levels. A copper pole cap further reduces distortion and inductance effects.

This element is identical to the round-faceplate ND25FA-4 model, but with no faceplate installed. It's perfect for installation into a waveguide or a custom mounting plate, or in limited clearance applications such as automotive A-pillars. Simply bond the unit in place from behind, and prepare to be surprised at the clean, detailed output!

Product Details

BrandDayton AudioModelND25FN-4Part Number275-053UPC848791000867Unit of MeasureEachWeight0.13

Product Specifications

Cone / Dome Diameter1"Cutout Diameter1.34Tweeter TypeSoft DomePower Handling (RMS)20 WattsImpedance4ΩFrequency Response2,500 to 20,000HzSensitivity90dB 2.83V/1m

Thiele-Small Parameters

Resonant Frequency (Fs)1350HzDC Resistance (Re)3.2ΩVoice Coil Inductance (Le)0.04mHMechanical Q (Qms)3.87Electromagnetic Q (Qes)2.61Total Q (Qts)1.56

Mounting Information

Overall Outside Diameter1.61"Depth0.83"