Wavecor WF182BD09

Wavecor WF182BD09 7" die cast paper/glass fiber cone 4 Ohm

The 7” transducers WF182BD09 and WF182BD11 (both 4 ohm) and WF182BD10 and WF182BD12 (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 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 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) = 100 W
• frequency range = 30-3000 Hz
• resonance frequency fs = 28,5 Hz
• impedance R = 4 Ohm
• sound pressure level SPL = 88,5 dB (2,83V; 1m)
• DC resistance Re = 3,2 Ohm
• force factor BL = 6,5 N/A
• voice coil inductance L = 0,1 mH
• effective piston radiating area Sd = 131 cm²
• effective mechanical mass incl. air load mms = 23,4 g
• equivalent volume of compliance Vas = 32,4 l
• total Q factor Qts = 0,31 (Qms=9,1, Qes=0,32)
• 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 = 88 mm
• mass m = 1,95 kg