Wavecor FR090WA02 3½” alu-cone fullrange 8 ohm

The 3½” transducers FR090WA01 (4 ohm) and FR090WA02 (8 ohm) were designed especially for high quality multimedia and lifestyle speakers, where sound reproduction without compromises is required while still keeping size small.

• True full-range design with on-axis output to beyond 20kHz
• Copper cap on center pole to reduce voice coil inductance and to minimize variations in voice coil inductance as a function of voice coil position
• Black anodized alu cone for better heat transfer
• Vented steel chassis for lower air flow speed reducing audible distortion
• Vented voice coil former for reduced distortion and compression
• Heavy-duty black fiber glass voice coil bobbin to reduce mechanical losses resulting in better dynamic performance and low-level details
• Large motor with 22 mm voice coil diameter for better control and power handling
• Low-loss suspension (high Qm) for better reproduction of details and dynamics
• Black motor parts for better heat transfer to the surrounding air
• Conex spider for better durability under extreme conditions
• Gold plated terminals to ensure long-term trouble free connection
• Delivered with EVA gasket attached for hassle-free mounting and secure cabinet sealing

• Notes

  	Parameter	FR090WA01		FR090WA02		Unit
  		Before burn-in	After burn-in	Before burn-in	After burn-in
  	Nominal size	3½		3½		[inch.]
  	Nominal impedance	4		8		[ohm]
  	Recommended max. upper frequency limit	full range		full range		[kHz]
  1, 4	Sensitivity, 2.83V/1m (average SPL in range 200 - 8,000 Hz)	86.5		83.5		[dB]
  2	Power handling, short term, IEC 268-5, no additional filtering					[W]
  2	Power handling, long term, IEC 268-5, no additional filtering					[W]
  2	Power handling, continuous, IEC 268-5, no additional filtering	10		10		[W]
  	Effective radiating area, Sd	36		36		[sq.cm]
  3, 4, 6	Resonance frequency (free air, no baffle), Fs	113	109	114	110	[Hz]
  	Moving mass, incl. air (free air, no baffle), Mms	3.45		3.35		[g]
  3	Force factor, Bxl	2.75		3.4		[N/A]
  3, 4, 6	Suspension compliance, Cms	0.58	0.62	0.58	0.62	[mm/N]
  3, 4, 6	Equivalent air volume, Vas	1.07	1.14	1.07	1.14	[lit.]
  3, 4, 6	Mechanical resistance, Rms	0.41	0.40	0.41	0.41	[Ns/m]
  3, 4, 6	Mechanical Q, Qms	6.0	5.9	5.9	5.8	[-]
  3, 4, 6	Electrical Q, Qes	1.03	1.0	1.27	1.23	[-]
  3, 4, 6	Total Q, Qts	0.88	0.85	1.04	1.01	[-]
  4	Voice coil resistance, RDC	3.2		6.1		[ohm]
  5	Voice coil inductance, Le(measured at 10 kHz)	76		127		[μH]
  	Voice coil inside diameter	22		22		[mm]
  	Voice coil winding height	7.5		7.5		[mm]
  	Air gap height	3		3		[mm]
  	Theoretical linear motor stroke, Xmax	±2.25		±2.25		[mm]
  	Magnet weight	160		160		[g]
  	Total unit net weight excl. packaging	0.40		0.40		[kg]
  3, 4, 5	Krm					[mohm]
  3, 4, 5	Erm					[-]
  3, 4, 5	Kxm					[mH]
  3, 4, 5	Exm					[-]