Wavecor TW030WA09 30 mm tweeter 4 ohm

TW030WA09 and TW030WA10 are tweeters designed for applications requiring the highest level of performance, with extended and linear high frequency response and best consistency.

Tweeters used to feature a separate rear chamber in order to obtain low resonance frequency. Not any longer. By designing the internal parts to accommodate new larger internal volumes, the TW030WA09/10 offer an unusually low  resonance frequency.

• 30 mm design with controlled off-axis and power response, high power handling, and low resonance frequency
• Internal volumes for low 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
• 

• Notes

  	Parameter	TW030WA09	TW030WA10	Unit
  	Nominal size	30	30	[mm]
  	Nominal impedance	4	8	[ohm]
  	Recommended frequency range	2 - 27	2 - 27	[kHz]
  1, 4	Sensitivity, 2.83V/1m (average SPL in range 2 - 20 kHz)	92.5	90	[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.			[W]
  	Effective radiating area, Sd	11.5	11.5	[sq.cm]
  3, 4, 6	Resonance frequency (free air, no baffle), Fs	725	750	[Hz]
  	Moving mass, incl. air (free air, no baffle), Mms	0.45	0.42	[g]
  3	Force factor, Bxl	2.0	2.4	[N/A]
  3, 4, 6	Suspension compliance, Cms	0.11	0.11	[mm/N]
  3, 4, 6	Equivalent air volume, Vas	0.020	0.020	[lit.]
  3, 4, 6	Mechanical resistance, Rms	0.25	0.25	[Ns/m]
  3, 4, 6	Mechanical Q, Qms	8.1	7.8	[-]
  3, 4, 6	Electrical Q, Qes	1.74	2.17	[-]
  3, 4, 6	Total Q, Qts	1.43	1.70	[-]
  4	Voice coil resistance, RDC	3.4	6.3	[ohm]
  5	Voice coil inductance, Le(measured at 20 kHz)			[μH]
  	Voice coil inside diameter	30.4	30.4	[mm]
  	Voice coil winding height	1.7	1.7	[mm]
  	Air gap height	2.5	2.5	[mm]
  	Theoretical linear motor stroke, Xmax	±0.40	±0.40	[mm]
  	Magnet weight			[g]
  	Total unit net weight excl. packaging			[kg]
  3, 4, 5	Krm			[mohm]
  3, 4, 5	Erm			[-]
  3, 4, 5	Kxm			[mH]
  3, 4, 5	Exm			[-]