Wavecor WF223BD02 8-3/4″ Balanced Drive Paper/Glass Fiber Cone Mid-Woofer 8 Ohm
Quick Overview:
The Wavecor WF223BD02 is an 8-3/4″ paper/glass fiber cone midwoofer that utilizes balanced drive technology and is designed for demanding bass and midrange applications. The WF223BD02 is a very good choices for either 2 or 3-way speaker systems.
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
- Cone made of a new paper/glass fiber mix with improved consistency and stability
- Rigid die cast alu chassis with extensive venting for lower air flow speed reducing audible distortion
- Vented voice coil former for reduced distortion and compression
- Vented center pole with dual flares for reduced noise level and compressions 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
- Large motor with 39 mm 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 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:
The Wavecor WF223BD02 is an 8-3/4″ paper/glass fiber cone midwoofer that is designed for demanding bass and midrange applications. This driver is powered by a large magnet structure that ensures good efficiency. The WF223BD02 is a very good choices for 2-way speaker systems or even as midrange in 3-way systems.
The large motor system with 1-1/2″ voice coil diameter and large magnet for better control, power handling, and efficiency. The optimized paper/glass fiber cone ensures wide bandwidth and low distortion. Distortion is further reduced by efficient venting of the chassis and voice coil former.
Product Specification:
 Parameter | WF223BD02 | Unit | |
---|---|---|---|
Before burn-in | After burn-in | ||
Nominal size | 8.75 | [inch.] | |
Nominal impedance | 8 | [ohm] | |
Recommended max. upper frequency limit | 2 | [kHz] | |
Sensitivity, 2.83V/1m (average SPL in range 200 – 1,000 Hz) | 86.5 | [dB] | |
Power handling, short term, IEC 268-5, no additional filtering | 1,200 | [W] | |
Power handling, long term, IEC 268-5, no additional filtering | 300 | [W] | |
Power handling, continuous, IEC 268-5, no additional filtering | 150 | [W] | |
Effective radiating area, Sd | 213 | [sq.cm] | |
Resonance frequency (free air, no baffle), Fs | 33.1 | [Hz] | |
Moving mass, incl. air (free air, no baffle), Mms | 33 | [g] | |
Force factor, Bxl | 9.5 | [N/A] | |
Suspension compliance, Cms | 0.70 | [mm/N] | |
Equivalent air volume, Vas | 45 | [lit.] | |
Mechanical resistance, Rms | 0.48 | [Ns/m] | |
Mechanical Q, Qms | 14.3 | [-] | |
Electrical Q, Qes | 0.47 | [-] | |
Total Q, Qts | 0.46 | [-] | |
Voice coil resistance, RDC | 6.2 | [ohm] | |
Voice coil inductance, Le (measured at 10 kHz) | 0.20 | [mH] | |
Voice coil inside diameter | 39 | [mm] | |
Voice coil winding height | 18 | [mm] | |
Air gap height | 5 | [mm] | |
Theoretical linear motor stroke, Xmax | +/-6.5 | [mm] | |
Magnet weight | [g] | ||
Total unit net weight excl. packaging | 2.5 | [kg] | |
Krm | [mohm] | ||
Erm | [-] | ||
Kxm | [mH] | ||
Exm | [-] |
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