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NE25VTA-04 NE25VTA-04 NE25VTA-04


Platform: Tymphany
Driver Type: Tweeter
Size: 25 mm
Motor: Neodymium
Frame: Al Faceplate
Impedance: 4 Ω
Diaphragm: Al (Aluminium)

Frequency & Impedance Response


Technical Specifications

Driver Size 25 mm
DC Resistance 3.2 Ω ±5.0%
Resonant Frequency 722.29 Hz 15%
Half Space Sensitivity @ 2.83V 91.06 dB ±1.01
Sensitivity @ 1W/1m 88 dB ±1.01
Rated Noise Power (IEC 268-5 18.1) 80 W
Test Spectrum Bandwidth 2kHz - 20kHz 12 dB/Oct
Effective Piston Area 8 cm2
Moving Mass 0.4 g
Motor Force Factor 2.08 T•m
Voice Coil Inner Diameter 25.76 mm
Gap Height 2 mm
Maximum Linear Excursion 0.1 mm
Ferrofluid Type
Minimum Impedance   3.98 Ω ±7.5%
Voice Coil Inductance 0.01 mH
Mechanical Q Factor 4.38
Electrical Q Factor 1.22
Total Q Factor 0.96
Ratio 755.53 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance 133.8 μm/N
Effective Cone Diameter 3.2 cm
Motor Efficiency Factor 1.3 (T•m2)/Ω
Voice Coil Former Material ASV
Driver Mass 0.1 Kg
Equivalent Volume 0.01 L

Product Info

The NE family has leading-edge transducer technology packaged in a cutting edge, stylistic design. The 4 ohm 25 mm tweeters in this family feature finite element analysis designed Neodymium-Iron-Boron magnet (NdFeB) motors, with copper caps for extended frequency response and reduced distortion. The aluminium rear chambers offer extended low frequency performance, while doubling as heat sinking. The butterfly supporting the tweeter diaphragm is made of a high temperature plastic, consistent with the products high temperature performance rating, and features supporting terminals. The dome material in this design is aluminum, and the design has been optimized for sound quality and clarity. Rounding out the design is an aluminium face plate and plastic grille, which offers protection for the tweeter diaphragm.

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