Wavecor TW045WA01 22/45mm coaxial neodymium tweeter, 4Ohm
Overview:
TW045WA01 is a unique new design, where a textile dome is combined with a ceramic cone in ensuring a larger bandwidth, high efficiency, and new levels of refinement and dynamics.
Features:
- Dual-Piston design combining a 22 mm textile dome with a 45 mm ceramic cone (TW045WA01) or black anodized alu cone (TW045WA02).
- Precision textile dome ensuring high frequency extension, ceramic/alu cone adding low frequency output and efficiency
- Copper clad center pole yielding very low voice coil inductance for reduced distortion and increased high frequency output
- Front-side reflection reducing foam ring
- Flat low-damping IIR surround
- Vented through to a damped rear, die cast, chamber for low resonance frequency and low distortion
- Alu chassis with built-in heat sink for increased long-term power handling
- Dual-neodymium magnet structure
- Optimized dome shape for ultra-high frequency cut-off
- Underhung voice coil design for improved linearity
- 22 mm voice coil design with high power handling, and low resonance frequency
- Copper-clad aluminium voice coil wire offering lower moving mass for improved efficiency and transient response
- 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
Nominal Specification:
Parameter | TW045WA01 | Unit | |
Before burn-in | After burn-in | ||
Nominal size | 22/45 | [inch.] | |
Nominal impedance | 4 | [ohm] | |
Recommended max. upper frequency limit | 2 – 40 | [kHz] | |
Sensitivity, 2.83V/1m (average SPL in range 200 – 1,000 Hz) | 95 | [dB] | |
Power handling, short term, IEC 268-5, no additional filtering | 1,300 | [W] | |
Power handling, long term, IEC 268-5, no additional filtering | 450 | [W] | |
Power handling, continuous, IEC 268-5, no additional filtering | 180 | [W] | |
Effective radiating area, Sd | 20 | [sq.cm] | |
Resonance frequency (free air, no baffle), Fs | 840 | [Hz] | |
Moving mass, incl. air (free air, no baffle), Mms | 1.12 | [g] | |
Force factor, Bxl | 3.0 | [N/A] | |
Suspension compliance, Cms | 0.032 | – | [mm/N] |
Equivalent air volume, Vas | 18 | – | [lit.] |
Mechanical resistance, Rms | 1.34 | – | [Ns/m] |
Mechanical Q, Qms | 4.4 | – | [-] |
Electrical Q, Qes | 1.85 | – | [-] |
Total Q, Qts | 1.30 | – | [-] |
Voice coil resistance, RDC | 2.9 | [ohm] | |
Voice coil inductance, Le (measured at 1 kHz) | – | [mH] | |
Voice coil inside diameter | 22 | [mm] | |
Voice coil winding height | 2.5 | [mm] | |
Air gap height | 4.0 | [mm] | |
Magnet weight | 45.7 + 8.3 | [g] | |
Total unit net weight excl. packaging | 270 | [kg] | |
Krm | – | [mohm] | |
Erm | – | [-] | |
Kxm | – | [mH] | |
Exm | – | [-] |
DAC Audiocart –
https://audioxpress.com/article/test-bench-wavecor-s-tw045wa01-coaxial-cloth-dome-ceramic-cone-tweeter