Electrical Data
Nominal impedance	Zn	8	ohm
Minimum impedance	Zmin	--	ohm
Maximum impedance	Zo	32	ohm
DC resistance	Re	5.6	ohm
Voice coil inductance	Le	0.45	mH

T-S Parameters
Resonance Frequency	fs	69	Hz
Mechanical Q factor	Qms	1.7
Electrical Q factor	Qes	0.39
Total Q factor	Qts	0.32
Force factor	Bl	6.1	Tm
Mechanical resistance	Rms	1.5	Kg/s
Moving mass	Mms	5.9	g
Suspension compliance	Cms	--	mm/N
Effective cone diameter	D	--	cm
Effective piston area	Sd	58	cm2
Equivalent volume	Vas	4.25	ltrs
Sensitivity (2.83V/1m)		87	dB
Ratio BL/√(Re)		--
Ratio fs/Qts	F	--

Power handling
100h RMS noise test (IEC)	--	W
Long-term Max Power (IEC 18.3)	80	W
Max linear SPL (rms) @ power	--	dB/W
Short Term Max power (IEC 18.2)	140	W

Voice Coil and Magnet Parameters
Voice coil diameter	25	mm
Voice coil height	10	mm
Voice coil layers	--
Height of the gap	4	mm
Linear excursion +/-	--	mm
Max mech. excursion +/-	--	mm
Flux density of gap	--	mWb
Total useful flux	--	mWb
Diameter of magnet	--	mm
Height of magnet	--	mm
Weight of magnet	0.415	Kg

Notes:
IEC specs refer to IEC 60268-5 third edition
All Tymphany products are RoHS compliant