Wavecor WF223BD01 Glasfiber 4 OHM

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Wavecor WF223BD

The 8¾” transducers WF223BD01 (4 ohm) and WF223BD02 (8 ohm) were designed as high performance bass/midrange units for monitors and high-end hi-fi speakers. They offer outstanding deep bass performance and dynamic and detailed midrange.
Ideal for 3-way constructions they additionally offer designers the rare opportunity of  working with 8” 2-way solutions if paired with a suitable tweeter like for instance some of the Wavecor 30 mm units.

Key features:
  • 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 1½” 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

Short data

Usage as Bass-Midrange
Power Handling 300 Watt
Impedance 4 Ohm
 
Frequency from 32.6 Hz
Max. Frequency 2 kHz
Sound pressure 89.5 dB

Chassis-data

Overall dimensions 223.5 mm
Baffle cutout 191 mm
Depth (Total) 102 mm
Frame Material Aluminium diecast
Membrane Type Cone
Membrane Surround Rubber
Membrane Material Fibreglass
Dustcap Material Fibreglass
 
Voice coil Ø 39 mm
Voice coil height 18 mm
Voice coil material Glasfibre
Air gap height 5 mm
Magnet Ø 115 mm

Thiele-Small-Parameter

Resonance fs fs: 32.6 Hz
Mechanical Q Qms: 14.5
Electrical Q Qes: 0.40
Total Q Qts: 0.39
Equivalent Air-Volumen Vas: 45 Liter
DC-Resistance Re: 3.5 Ohm
 
Mech. Compliance Cms: 0.70 mm/N
Moving Mass Mms: 34 g
mech. Resistance Rms: 0.48 kg/s-¹
Max. Excursion +/- Xmax: 6.5 mm
BL Product Bl: 7.7 N/A
Membrane Area Sd: 213 cm²
Sound pressure dB: 89.5 SPL

Cumulative Spectral Decay

Frequency

Harmonic Distortions

Impedance

Technical Dimensions

PDF-Product information

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