The 2" exit D408TI combines a stable structure for mid-frequency reproduction with a low mass that enables high frequency reproduction virtually linear to 20 kHz and features a ferrofluid cooled, copper clad aluminum wire (CCAW) voice coil wound on Kapton former
 
SPECIFICATIONS:
Power Handling: 200 watts RMS/250 watts max
Nominal Impedance: 8 ohms 
Voice Coil Diameter: 100mm
Frequency Response: 400-20,000 Hz 
SPL: 111 (Horn)/ 113 (Plane-Wave Tube) dB 2.83V/1m 
DC Resistance: 4.8 ohms 
Voice Coil Winding Length: 6.0 meters
Voice Coil Winding Depth: 2.0mm
Diaphragm Material: Titanium
Flux Density: 1.7 T
Volume Displaced by Tweeter: 2.2 I
Throat Diameter: 50mm
Minimum Recommended Crossover: 800 Hz
Magnet Weight: 2640g
Net Weight: 8540g
Connectors: Push Terminals
Horn Connection: Bolt-on
Depth: 86mm 
Magnet Diameter: 200mm 
Magnet Height: 24mm