NHP25Ti-4 1" Titanium Dome High Power Neodymium Tweeter 4 Ohm

Quick Overview

The Dayton Audio compact NHP25Ti-4 1" titanium dome tweeter uses a high temperature neodymium motor, Ferrofluid cooling, and rear mounted heatsink 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 NHP25Ti-4 an amazing value.

Product Highlights

  • Extremely smooth response makes for easy transition to midrange diver
  • Over 94 dB efficiency is perfect for use in higher output designs
  • Attached heatsink and ferrofluid cooling for increased power handling
  • Compact cast aluminum faceplate minimizes center-to-center distance
  • High temperature neodymium motor allows high output for extended periods

Product Manuals / Spec Sheets / Downloads

Dayton Audio NHP25Ti-4 Specification Sheet
Dayton Audio NHP25Ti-4 Data Files

Buying Options

Dayton Audios versatile NHP25Ti-4 is a 1" titanium-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 heatsink and Ferrofluid-filled magnetic gap reduces power compression and improves long-term power handling. In addition, the carefully designed titanium diaphragm provides accurate treble response to over 20 kHz, excellent off-axis dispersion, and superb sonic detail.

The NHP25Ti-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.

104mm Cast Aluminum Face Plate for NHP Tweeters


110mm Cast Aluminum Face Plate for NHP Tweeters

Model Number NHP25Ti-4
Color Black
Unit of Measure Each
UPC 848791004889
Warranty - Parts 5 Years
Warranty - Labor 5 Years
Product Shipping Weight (lbs.) 0.25
Speaker Type Tweeter
Nominal Diameter 1"
Power Handling (RMS) 40 watts
Power Handling (max) 80 watts
Continuous Program Power --
Impedance 4 ohms
Sensitivity 94 dB 2.83V/1m
Frequency Response 3,000 - 20,000 Hz
Voice Coil Diameter 25.4 mm
Magnet Weight --
DC Resistance (Re) 3.23 ohms
Voice Coil Inductance (Le) 0.03 mH
Resonant Frequency (Fs) 1612 Hz
Mechanical Q (Qms) 5.23
Electromagnetic Q (Qes) 2.54
Total Q (Qts) 1.71
Diaphragm Mass Inc. Airload (Mms) --
Moving Mass Of Diaphragm (Mmd) --
Mechanical Compliance of Suspension (Cms) --
Surface Area Of Cone (Sd) --
Volume of Displacement (Vd) --
BL Product (BL) --
Compliance Equivalent Volume (Vas) --
Maximum Linear Excursion (Xmax) --
Drivers Mechanical Losses (Rms) --
Cone / Diaphragm Material Titanium Cone
Entry / Exit Diameter --
Surround Material --
Voice Coil Wire Material Copper
Voice Coil Former Aluminum
Basket/Frame Material Aluminum
Magnet Material Neodymium
Overall Outside Diameter 63.75 mm
Overall Depth 27.2 mm
Baffle Cutout Diameter 40.1 mm
Mounting Hole Diameter --
Bolt Circle Diameter --
Product Weight --