Wavecor Subwoofer SW223BD02 4 Ohm 8 Inch

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Code: Wavecor-Subwoofer-SW223BD02

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$325.00 each

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Description: Wavecor Subwoofer SW223BD02 4 Ohm 8 Inch

Wavecor Speaker Driver - SW223BD02 - 4 Ohm 8¾" Alu-Cone Subwoofer

Description
The 8¾" transducer SW223BD02 - 4 Ohm was designed specifically for high performance compact subwoofer applications where sound quality and low distortion are the priorities.

Features

Balanced Drive motor structure for optimal drive force symmetry resulting in largely reduced even order harmonic distortion
Extremely large linear stroke, Xmax = ±10.7 mm, ensuring low distortion at high output levels
Very rigid black aluminium cone to ensure piston motion at high levels and for better heat transfer at high continuous power levels
Rigid die cast alu chassis with extensive venting for lower air flow speed reducing audible distortion
Heavy-duty black fibre glass voice coil former to reduce mechanical losses resulting in better dynamic performance and low-level details
Large motor with 2" voice coil diameter for better control and power handling
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 plated cone and 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

Frequency SPL and Impedance Response Graphs

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

SW146WA01 Wavecor Subwoofer

Loudspeaker Impedance Response Graph
Measuring conditions for 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	8¾	inch
	Nominal impedance	4	Ohm
	Recommended max. upper frequency limit	1000	kHz
1, 3	Sensitivity, 2.83V/1m (calculated from T/S parameters)	83	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.	200	W
	Effective radiating area, Sd	206	cm²
3, 6	Resonance frequency (free air, no baffle), Fs	24	Hz
	Moving mass, incl. air (free air, no baffle), Mms	97	g
3	Force factor, Bxl	11.0	-
3, 6	Suspension compliance, Cms	0.47	mm/N
3, 6	Equivalent air volume, Vas	28	lit.
3, 6	Mechanical resistance, Rms	1.35	Ns/M
3, 6	Mechanical Q, Qms	10.7	-
3, 6	Electrical Q, Qes	0.42	-
3, 6	Total Q, Qts	0.40	-
4	Voice coil resistance, RDC	3.5	Ohm
5	Voice coil inductance, Le (measured at 1 kHz)	0.80	mH
	Voice coil inside diameter	51	mm
	Voice coil winding height	29.4	mm
	Air gap height	6	mm
	Theoretical linear motor stroke, Xmax	±11.7	mm
	Magnet weight		g
	Total unit net weight excl. packaging	4.4	kg
3, 5	Krm	84	mOhm
3, 5	Erm	0.37	-
3, 5	Kxm	20	mH
3, 5	Exm	0.57	-

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 20 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.
Note 6 After burn-in specifications are measured 12 hours after exiting the transducer by a 20 Hz sine wave for 2 hours at level 10/14.1 VRMS (4/8 ohm version). The unit is not burned in before shipping.

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