The Scanspeak 18M/4631T00, 6.5" Midwoofer Revelator midranges are well known for their sliced paper cone technology. The slices are filled with damping glue which dramatically reduces break-up modes in the diaphragm. In combination with Scan-Speaks low-loss linear suspension and the patented Symmetrical Drive (SD-1) it represents a breakthrough in midrange clarity and overall smooth frequency response characteristics
- Patented Symmetrical Drive motor design - Low-loss Linear Suspension - Coated Foam Surround - Sliced Cone (Control Cone Breakups) - High Sensitivity 92dB @ 2,83V - Rigid Titanium Voice Coil Former
Specifications
power handling (continuous/programme) = 120/250 W
frequency range = 65-2500 Hz
resonance frequency fs = 65 Hz
impedance R = 4 Ohm
sound pressure level SPL = 92 dB (2,83V; 1m)
DC resistance Re = 3,9 Ohm
force factor BL = 5,6 N/A
voice coil inductance L = 0,16 mH
effective piston radiating area Sd = 154 cm2
effective mechanical mass incl. air load mms = 11,4 g
equivalent volume of compliance Vas = 14 l
total Q factor Qts = 0,60 (Qms=5,65, Qes=0,67)
voice coil diameter = 38 mm
maximum peak linear excursion vibration xlin = +/- 3 mm
