CSX 217 H
217 WR 33 102 SD 4L AL 8 ohm    -    Order ID: 850136

High-end woofer with a large four layer voice coil and heavy magnet. Well suited for reflex constructions where the driver due to a low resonance frequency will produce a deep and dry bass. Excellent midrange response makes this unit very easy to filter. In fact, the driver can be used in a 2-way system (with a cross-over frequency at 3 KHz).

CSX 217 H
Thiele Small parameters:			Free air	Common	Baffled
Nominal impedance	Zn	(ohm)		8
Minimum impedance/at freq.	Zmin	(ohm/Hz)		6.6/188
Maximum impedance	Zo	(ohm)		76.5
DC resistance	Re	(ohm)		5.9
Voice coil inductance	Le	(mH)		2.6
Capacitor in series with 8 ohm (for impedance compensation)	Cc	(µF)		21
Resonance Frequency	fs	(Hz)	28.2		27.4
Mechanical Q factor	Qms		3.50		3.61
Electrical Q factor	Qes		0.29		0.30
Total Q factor	Qts		0.27		0.28
F (Ratio fs/Qts)	F	(Hz)			99
Mechanical resistance	Rms	(Kg/s)		1.54
Moving mass	Mms	(g)	30.5		32.4
Suspension compliance	Cms	(mm/N)		1.04
Effective cone diameter	D	(cm)		17.3
Effective piston area	Sd	(cm²)		235
Equivalent volume	VAS	(ltrs)		79.7
Force factor	Bl	(N/A)		10.4
Reference voltage sensitivity Re 2.83V 1m at 188 Hz (Measured)		(dB)			89.5

Magnet and voice coil parameters:
Voice coil diameter	d	(mm)	33
Voice coil length	h	(mm)	14
Voice coil layers	n		4
Flux density in gap	B	(T)	0.95
Total useful flux		(mWb)	0.90
Height of the gap	hg	(mm)	6
Diameter of magnet	dm	(mm)	102
Height of magnet	hm	(mm)	20
Weight of magnet		(kg)	0.68

Power handling:
Long term Max System Power (IEC)	(W)	150