The Dayton Audio compact NHP25F-4 1" soft dome tweeter uses a high
temperature neodymium motor, Ferrofluid cooling, and rear mounted heat sink for
improved heat dissipation making this tweeter suitable for higher output systems
and even professional line arrays. In addition, the flat response and high
efficiency makes the NHP25F-4 an amazing value.
Key Features
Attached heat sink and ferrofluid cooling for increased power
handling
Over 95 dB efficient is perfect for use in higher output designs
Compact cast aluminum faceplate minimizes center to center distance
High temperature neodymium motor allows high output for extended
periods
Extremely smooth response makes for easy transition to midrange diver
Dayton Audio's versatile NHP25F-4 is a 1" soft dome tweeter that offers the
performance of more expensive tweeters in a compact and stylish package. The
small yet powerful high temperature neodymium motor with attached aluminum heat
sink and Ferrofluid-filled magnetic gap reduces power compression and improves
long-term power handling. In addition, the carefully designed silk diaphragm
provides natural treble response up to 20 kHz, excellent off-axis dispersion,
and superb sonic detail.
The NHP25F-4 includes a 2.5" cast aluminum faceplate, however Dayton Audio
does offer an optional 4.09" (104 mm) and 4.33" (110 mm) faceplate allowing this
tweeter to be used as a drop in replace for many common sized tweeters.
Product Details
Brand Dayton Audio
Model NHP25F-4
Part Number 275-108
UPC 848791004759
Unit of Measure Each
Weight 0.25
Product Specifications
Cone / Dome Diameter 1"
Cutout Diameter 1.58
Tweeter Type Soft Dome
Power Handling (RMS) 40 Watts
Impedance 4Ω
Frequency Response 3,000 to 20,000Hz
Sensitivity 95dB 2.83V/1m
Thiele-Small Parameters
Resonant Frequency (Fs) 1689Hz
DC Resistance (Re) 3.18Ω
Voice Coil Inductance (Le) 0.03mH
Mechanical Q (Qms) 3.75
Electromagnetic Q (Qes) 2.04
Total Q (Qts) 1.32
Mounting Information
Overall Outside Diameter 2.51"
Depth 0.71"