Wavecor WF120BD03 4-3/4" Balanced Drive Paper Cone Mid-Woofer 4 Ohm

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Wavecor WF120BD03 4-3/4" Balanced Drive Paper Cone Mid-Woofer 4 Ohm

Price: 6,580.00INR
Ex Tax: 6,580.00INR

Brand: Wavecor
Product Code: WF120BD03
Availability: In Stock

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Wavecor WF120BD03 4-3/4" Balanced Drive Paper Cone Mid-Woofer 4 Ohm

Quick Overview:

The Wavecor WF120BD03 is a 4-3/4" truncated frame paper cone midwoofer that is designed for demanding bass and midrange applications. This driver utilizes balanced drive technology for reduced distortion. It works equally well for high-end hi-fi, high quality home theater systems, and multimedia projects. The WF120BD03 is an ideal choice for a compact 2-way speaker design as a midwoofer.

Product Highlights:

Balanced Drive motor structure for optimal drive force symmetry resulting in largely reduced even order harmonic distortion
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 coated semi-air-dried paper cone
Rigid die cast alu chassis with extensive venting for lower air flow speed reducing audible distortion
Large motor for better control and power handling
Vented voice coil former for reduced noise level at large cone excursions
Heavy-duty black fiber glass voice coil former to reduce mechanical losses resulting in better dynamic performance and low-level details
Built-in alu field-stabilizing ring for reduced distortion at high levels
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

Product Description:

he Wavecor WF120BD03 is a 4-3/4" truncated frame paper cone midwoofer that is designed for demanding bass and midrange applications. This driver utilizes balanced drive technology for reduced distortion. It works equally well for high-end hi-fi, high quality home theater systems, and multimedia projects. The WF120BD03 is an ideal choice for a compact 2-way speaker design as a midwoofer.

Powered by a large magnet structure, the WF120BD03 is ensured excellent efficiency and optimal T/S parameters. The large 1" voice coil allows excellent high-power handling, both thermally and mechanically. The optimized paper cone ensures large bandwidth and low distortion. Distortion is further reduced by the efficient venting and an aluminum shorting ring and copper cap stabilizing the magnetic field in the air gap.

Product Specification

Parameter	WF120BD03 / WF120BD07		WF120BD04 / WF120BD08		Unit
	Before burn-in	After burn-in	Before burn-in	After burn-in
Nominal size	4 3/4		43/4		[inch.]
Nominal impedance	4		8		[ohm]
Recommended max. upper frequency limit	4		4		[kHz]
Sensitivity, 2.83V/1m (average SPL in range 300 - 1,000 Hz)	88.5		86		[dB]
Power handling, short term, IEC 268-5, no additional filtering					[W]
Power handling, long term, IEC 268-5, no additional filtering					[W]
Power handling, continuous, IEC 268-5, no additional filtering	50		50		[W]
Effective radiating area, Sd	54		54		[sq.cm]
Resonance frequency (free air, no baffle), Fs	70	61.5	71.5	63	[Hz]
Moving mass, incl. air (free air, no baffle), Mms	6.55		6.25		[g]
Force factor, Bxl	4.5		5.5		[N/A]
Suspension compliance, Cms	0.79	1.03	0.79	1.03	[mm/N]
Equivalent air volume, Vas	3.25	4.25	3.25	4.25	[lit.]
Mechanical resistance, Rms	0.49	0.42	0.49	0.42	[Ns/m]
Mechanical Q, Qms	5.9	6.0	5.7	5.9	[-]
Electrical Q, Qes	0.46	0.40	0.56	0.49	[-]
Total Q, Qts	0.42	0.37	0.51	0.45	[-]
Voice coil resistance, RDC	3.2		6.0		[ohm]
Voice coil inductance, Le (measured at 10 kHz)	0.086		0.14		[mH]
Voice coil inside diameter	26		26		[mm]
Voice coil winding height	12		12		[mm]
Air gap height	4		4		[mm]
Magnet weight	430		430		[g]
Total unit net weight excl. packaging	1.04		1.04		[kg]
Krm	27		33		[mohm]
Erm	0.43		0.44		[-]
Kxm	198		430		[mH]
Exm	0.17		0.14		[-]