Wavecor WF182BD03

Wavecor WF182BD03 7" die cast paper cone mid/woofer 4 Ohm

The 7” transducers WF182BD03 and WF182BD07 (both 4 ohm) and WF182BD04 and WF182BD08 (both 8 ohm) were designed as high performance bass and midrange units for  monitors and high-end hi-fi speakers. They offer outstanding deep bass performance and dynamic and detailed midrange.

FEATURES

• Balanced Drive motor structure for optimal drive force symmetry resulting in largely reduced 2nd 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
• Vented voice coil former for reduced distortion and compression
• Vented center pole with dual flares 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
• 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 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

SPECIFICATIONS

• power handling (continuous/programme) = 80 W
• frequency range = 30-3000 Hz
• resonance frequency fs = 33,8 Hz
• impedance R = 4 Ohm
• sound pressure level SPL = 91 dB (2,83V; 1m)
• DC resistance Re = 3,3 Ohm
• force factor BL = 6,75 N/A
• voice coil inductance L = 0,088 mH
• effective piston radiating area Sd = 131 cm²
• effective mechanical mass incl. air load mms = 16,7 g
• equivalent volume of compliance Vas = 32,4 l
• total Q factor Qts = 0,25 (Qms=8,2, Qes=0,26)
• voice coil diameter = 39 mm
• maximum peak linear excursion vibration x_lin = +/- 5,5 mm
• mounting diameter d = 153 mm
• overall diameter d = 182 mm
• mounting depth (not countersunk) t = 90 mm
• mass m = 2,3 kg