Ex Series Drivers Each model in the "EX" range incorporates an acoustic chamber precisley tuned for optimum performance. Cone assemblies are pressure balanced between the acoustic chamber at the rear and a phasing equalizer fitted to the front. No unwanted oscillations of the speech coil occur. Only bass frequencies will pass through the acoustic chamber, so avoiding bass/mid-range confussion, often a cause of coloration. The latest "State Of The Art" rare earth magnet technology is employed to enable complete control of the diaphragm throughout the entire audible range. This results in maximum information being extracted from the recorded source while delivering a very smooth response at all frequencies. Driver Specifications:

	EX2	EX3	EX4
Overall Diameter	23.2 cm (All Models)
Overall Depth	7 cm	7 cm	8 cm
Depth From Rear Of Mounting Frame	6.4 cm	6.6 cm	7.9 cm
Mounting Centers	20.8 cm (All Models)
Baflle Hole Cutout	19 cm (All Models)
Magnet Ring Diameter	7.6 cm	9.0 cm	9.0 cm
Voice Coil Diameter	3.9 cm (All Models)
Voice Coil Impedance (nominal)	4,8 or 15 ohm (All Models)
Nominal Impedance Z	8 ohm (All Models)
Minimum Impedance Zmin	7.2 ohm (All Models)
Nominal Power handling	100W (All Models)
Emmision Piston Area Sd	0.021M² (All Models)
Air Gap Width	900 Microns (All Models)
Air Gap Height	5mm (All Models)
Magnet Type	Rare Earth - High Ferric Neodymium (All Models)
Flux Density (1 Telsa = 10,000 Gauss)	1.75 Tesla	2.1 Tesla	2.2 Tesla
Diaphragm	Twin-Paper (All Models)
Frequency Response	30 - 20 kHz	30 - 22 kHz	30 - 22.5 kHz
Nominal Air Resonance	36 Hz (All Models)
Sensitivity 1w/1m/1kHz	97 dB	98 dB	99dB
Maximum Voice Coil Travel	+/- 1mm (All Models)
Suspension Compliance	1.24 x 1.8 MN-1 (All Models)
Total Q factor	0.260	0.245	0.220
Electrical Q factor	0.22 (All Models)
Mechanical Q factor	3.11 (All Models)
Equivalent volume suspension	.015M³ (All Models)
Effective moving mass	0.0115 kg (All Models)
Shipping Weight	3.0 kg	3.0 kg	3.5 kg

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