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.
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Product Details
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 SPECIFICATIONS
Tweeter Type | Soft Dome |
Cone / Dome Diameter | 1" |
Impedance | 4 ohms |
Power Handling (RMS) | 20 Watts |
Frequency Response | 2,500 to 20,000 Hz |
Sensitivity | 90 dB 2.83V/1m |
THIELE-SMALL PARAMETERS
Resonant Frequency (Fs) | 1,350 Hz |
DC Resistance (Re) | 3.20 ohms |
Voice Coil Inductance (Le) | 0.04 mH |
Mechanical Q (Qms) | 3.87 |
Electromagnetic Q (Qes) | 2.61 |
Total Q (Qts) | 1.56 |
MOUNTING INFORMATION
Overall Outside Diameter | 1.61" |
Cutout Diameter | 1.34" |
Depth | 0.83" |
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