30mm TW030WA14 Neodymium Dome Low Inductance 8 Ohm

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Code: Wavecor-Tweeter-TW030WA14-01

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$198.00 per pair

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Description: 30mm TW030WA14 Neodymium Dome Low Inductance 8 Ohm

Wavecor Speaker Driver - TW030WA14 - 8 Ohm 30mm Chambered Neodymium Textile Tweeter

Description
TW030WA14 is a true high-end tweeter designed for the most demanding applications featuring an array of performance improving details that participate in obtaining low resonance frequency, low distortion and very high frequency extension.

Features

Precision textile dome ensuring extended response and very good consistency
30 mm voice coil design with high power handling, and low resonance frequency
Copper clad center pole yielding very low voice coil inductance for reduced distortion and increased high frequency output
Vented through to a damped rear chamber for low resonance frequency and low distortion
Internal volumes for low resonance frequency and low distortion
Optimised dome shape for ultra high frequency cut-off
Rear heat sink for increased long term power handling
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
Built-in cavities under dome/edge to equalise 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

Frequency SPL and Impedance Response Graphs

Loudspeaker Frequency Response Graph
Measuring conditions, SPL
Driver mounting: Flush in infinite baffle
Microphone distance: 1.0 m
Input level: 2.83 VRMS
Smoothing: 1/6 oct.

Loudspeaker Impedance Response Graph
Measuring conditions, impedance
Driver mounting: Free air, no baffle
Input signal: Stepped sine wave, semi-current-drive, nominal current 2 mA
Smoothing: None

Technical Specifications

Notes	Parameter	Value	Unit
	Nominal size	30	mm
	Nominal impedance	8	Ohm
	Recommended frequency range	2-30	kHz
1, 4	Sensitivity, 2.83V/1m (average SPL in range 2 - 20 kHz)	90.5	dB
2	Power handling, short term, IEC 268-5, 2.5 kHz @ 12dB/oct.		W
2	Power handling, long term, IEC 268-5, 2.5 kHz @ 12dB/oct.		W
2	Power handling, continuous, IEC 268-5, 2.5 kHz @ 12dB/oct.	35	W
	Effective radiating area, Sd	11.5	cm²
3, 4, 6	Resonance frequency (free air, no baffle), Fs	715	kHz
	Moving mass, incl. air (free air, no baffle), Mms	.040	g
3	Force factor, Bxl	2.25	-
3, 4, 6	Suspension compliance, Cms	0.124	mm/N
3, 4, 6	Equivalent air volume, Vas	23	ml
3, 4, 6	Mechanical resistance, Rms	0.76	Ns/m
3, 4, 6	Mechanical Q, Qms	2.37	-
3, 4, 6	Electrical Q, Qes	2.31	-
3, 4, 6	Total Q, Qts	1.17	-
4	Voice coil resistance, RDC	6.5	Ohm
5	Voice coil inductance, Le (measured at 20 kHz)	59	uH
	Voice coil inside diameter	30.4	mm
	Voice coil winding height	1.7	mm
	Air gap height	3.0	mm
	Theoretical linear motor stroke, Xmax	±0.65	mm
	Magnet weight		g
	Total unit net weight excl. packaging	0.13	kg
3, 4, 5	Krm	4.4	mOhm
3, 4, 5	Erm	0.48	-
3, 4, 5	Kxm	726	mH
3, 4, 5	Exm	0.0	-

Note 1 Measured in infinite baffle.
Note 2 Tested in free air (no cabinet).
Note 3 Measured using a semi-constant current source, nominal level 2 mA.
Note 4 Measured at 25 deg. C
Note 5 It is generally a rough simplification to assume that loudspeaker transducer voice coils exhibit the characteristics of an inductor. Instead it is a far more accurate approach to use the more advanced model often referred to as the “Wright empirical model”, also used in LEAP-4 as the TSL model (www.linearx.com), involving parameters Krm, Erm, Kxm, and Exm. This more accurate transducer model is described in a technical paper (PDF) here.
Note 6 Measured before burn in

Driver Nominal Dimensions

Loudspeaker Driver Dimensions and Measurements - all dimensions in mm (approx.)

Terminal Nominal Dimensions

Loudspeaker Driver Terminal Dimensions and Measurements - all dimensions in mm (approx.)
Thickness, both terminals: 0.5 mm
Terminal plating: Gold