* Die Cast Aluminum Frame
* Gold Plated Binding Post
* Gold Plated Terminals
* Magnetically Optimised extended pole piece w/ noiseless vent
* Injection Molded Magnet Boot
Protects the magnet from damage.
* Congruent Edge Technology
Gasket and Surround are co-molded of EPDM
* Computer Optimized Progressive Roll
For Low Distortion and High Travel
* 102 oz Strontium Ferrite Magnet
For High Efficiency
* 2.5" 4 Layer Voice Coil on Kapton MTB Former
For High Power Handling and Excursion
Free Air Resonance Fs 29.2 Hz
Volume Acoustic Suspension Vas 1.42 Ft^3 (40.2 l)
Total Q Qts .55
Electrical Q Qes .58
Mechanical Q Qms 11.49
DC Resistance Re 3.61 Ohm
Linear Excursion (One Way) Xmax .50” (12.7 mm)
Effective Piston Diameter D 8.250” (.2096 m)
RMS Power Handling RMS 400 Watts
Total Power Handling Total 1000 Watts
Sensitivity 1W/1m SPLo 84.6 dB
Reference Efficiency No 0.16%
Frequency Response 29 - 150Hz
Voice Coil Inductance Le 3.4 mH
Gap Height .375” (9.5 mm)
Voice Coil Height 1.250” (31.8 mm)
Motor Force BL 11.87 Tm
Compliance Cms .241 mm/N
Total Moving Mass Mms 123.4 g
Moving Mass of Driver Mmd 119.7 g
Suspension Losses Rms 1.97
Effective Surface Area Sd 53.5 in^2 (.0345m^2)
Mounting Diameter 9 1/4 ” (235.0 mm)
Overall Diameter 10 5/8 ” (269.9 mm)
Mounting Depth 4 7/8 ” (123.8 mm)
Overall Depth 5 9/16” (141.3 mm)
Speaker Displacement (Inside Box) 195in^2 (3.2 l)
Speaker Displacement (Outside Box) 134in^2 (2.2 l)
