ND25FW-4 1" Soft Dome Neodymium Tweeter with Waveguide 4 Ohm
Waveguide-loaded 1" treated silk dome
$59.95
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The Dayton Audio ND25FW-4 tweeter features a unique integrated round waveguide faceplate that provides a controlled directivity transition at high frequencies, reducing the effect of room reflections on the speaker's tonal balance. Unlike conventional flat-faceplate dome tweeters whose directivity does not match the midwoofer driver near the crossover frequency, the ND25FW-4's waveguide is curved to maintain consistent directivity at the transition. The waveguide also acts as a low-compression horn, lowering distortion.
Waveguide-loaded dome tweeters are embraced within the industry for providing directivity control and mild horn loading without the negative effects of compression loading such as impulse smear and throat distortion where high levels are not needed. The waveguide profile used in the ND25FW-4 provides a minimum dispersion angle of about 90 degrees, and maintains directivity control to about 2,000 Hz, but the round waveguide will install easily into the same 104 mm standard tweeter cutout used commonly by dome tweeters with larger ferrite motors.
(848791002014)
• Waveguide-loaded 1" treated silk dome
• Waveguide provides controlled directivity and higher efficiency
• High-strength neodymium motor with heatsink and ferrofluid cooling
• Low Fs of 1,350 Hz can accommodate crossover points as low as 2,500 Hz
• Standard 104 mm tweeter cutout for easy integration into many existing systems
• Included foam gasket ensures a good seal to the enclosure
• Waveguide provides controlled directivity and higher efficiency
• High-strength neodymium motor with heatsink and ferrofluid cooling
• Low Fs of 1,350 Hz can accommodate crossover points as low as 2,500 Hz
• Standard 104 mm tweeter cutout for easy integration into many existing systems
• Included foam gasket ensures a good seal to the enclosure
| Speaker Series | ND Series |
|---|---|
| Model Number | ND25FW-4 |
| Color | Black |
| Unit of Measure | Each |
| UPC | 848791002014 |
| Warranty - Parts | 5 Years |
| Warranty - Labor | 5 Years |
| Product Shipping Weight (lbs.) | 0.3500 |
| Speaker Type | Tweeter |
| Nominal Diameter | 1" |
| Power Handling (RMS) | 20 watts |
| Power Handling (max) | 40 watts |
| Continuous Program Power | -- |
| Impedance | 4 ohms |
| Sensitivity | 91 dB @ 1W/1m |
| Frequency Response | 2,500 - 20,000 Hz |
| Voice Coil Diameter | 1" |
| Magnet Weight | -- |
| DC Resistance (Re) | 3.2 ohms |
| Voice Coil Inductance (Le) | 0.04 mH |
| Resonant Frequency (Fs) | 1,350 Hz |
| Mechanical Q (Qms) | -- |
| Electromagnetic Q (Qes) | -- |
| Total Q (Qts) | -- |
| 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) | -- |
| Driver's Mechanical Losses (Rms) | -- |
| Entry / Exit Diameter | -- |
| Surround Material | -- |
| Voice Coil Wire Material | -- |
| Voice Coil Former | -- |
| Basket/Frame Material | -- |
| Magnet Material | -- |
| Overall Outside Diameter | 4.12" |
| Overall Depth | 1.7" |
| Baffle Cutout Diameter | 3" |
| Mounting Hole Diameter | -- |
| Bolt Circle Diameter | -- |
| Product Weight | -- |
| SKU | 848791002014 |
| Model # | ND25FW-4 |
| Barcode # | 848791002014 |
| Brand | Dayton Audio |
| Shipping Weight | 0.1670kg |
| Shipping Width | 0.127m |
| Shipping Height | 0.076m |
| Shipping Length | 0.127m |
| Shipping Cubic | 0.001229000m3 |
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