Wavecor TW022WA04, 4 OHM Dome Tweeter


manufacturer information

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TW022WA04

22 mmm neodymium textile tweeter, 4 ohm

TW022WA04 is a compact 22 mm neodymium tweeter for applications where small size is important, while requiring the higest level of performance

The best of two worlds?
The design with 22 mm voice coil and wide surround caters for both applications that would normally require traditional ¾ tweeters and those, where 1 tweeters would usually be used.
Featured with a rear chamber these compact tweeters offer very low resonace frequency.

Innovative
In order to keep distortion and resonance frequency low the TW022WA03/04 are designed around an outside neodymium ring magnet in order to allow for a larger internal volume than that of traditional neodymium tweeter.
The dome shape and material choice allow for almost full output level to beyond 40 kHz.

The only difference between the two models is that TW022WA04 is shipped with an optimized face plate attached while TW022WA03 comes without face plate, for direct mounting in the enclosure/baffle.

FEATURES

22 mm design for optimal compromise between on- and off-axis frequency response, resonance frequency, and power handling
Rear chamber for low resonance frequency and reduced distortion
Outside ring neodymium magnet for lower resonance frequency and distortion
Precision-coated textile diaphragm for improved consistency and high-frequency extension
Optimized dome shape for ultra high frequency cutoff
Vented voice coil former for reduced distortion and compression
Copper-clad aluminium voice coil wire offering lower moving mass for improved efficiency and transient response
Build-in cavities under dome/edge to equalize pressure for lower distortion and lower resonance frequency
Flexible lead wires for higher power handling and larger excursion
Gold plated terminals to prevent oxidation and ensure long-term reliable connection
Delivered with foam gasket attached for hassle-free mounting and secure cabinet sealing (TW022WA04 only)

Short data

Usage as Tweeter
Impedance 4 Ohm
 
Frequency from 2500 Hz
Max. Frequency 30 kHz
Sound pressure 89 dB

Chassis-data

Overall dimensions 65 mm
Baffle cutout 39.6 mm
Depth (Total) 24 mm
Front material Plastic
Membrane Type Dome
Membrane Material Textile coated
 
Voice coil Ø 22 mm
Voice coil height 1.6 mm
Air gap height 2.5 mm

Thiele-Small-Parameter

Resonance fs fs: 825 Hz
Mechanical Q Qms: 1.4
Electrical Q Qes: 1.9
Total Q Qts: 0.8
Equivalent Air-Volumen Vas: 0.0076 Liter
DC-Resistance Re: 3.6 Ohm
Coil Inductance Le: 0.04 mH
 
Mech. Compliance Cms: 0.15 mm/N
Moving Mass Mms: 0.27 g
mech. Resistance Rms: 0.97 kg/s-¹
Max. Excursion +/- Xmax: 0.45 mm
BL Product Bl: 1.7 N/A
Membrane Ø Md: 22
Membrane Area Sd: 6.1 cm²
Sound pressure dB: 89 SPL

Frequency

Impedance

Technical drawing

PDF-Product information

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