The C12N has that definitive all American rock and roll tone. It was used by almost every major amplifier manufacturer in the 1960's, and has been sought after ever since. It's sweet midrange coupled with dynamic response throughout makes this speaker an industry standard.

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General Characteristics
Nominal Overall Diameter	307 mm	12in
Nominal Voice Coil Diameter	38 mm	1.5 in
Magnet Weight	810 g	28.6 oz
Flux Density	1.15 T
Thiele-Small Parameters
Voice Coil DC Resistance	RE	6.50 Ω
Resonance Frequency	ƒS	112.0 Hz
Mechanical Q Factor	QMS	7.01
Electrical Q Factor	QES	1.05
Total Q Factor	QTS	0.92
Mechanical Moving Mass	MMS	25.2 g
Mechanical Compliance	CMS	82.0 µm/N
Force Factor	BxL	10.39 Wb/m
Equivalent Acoustic Volume	VAS	27.6 lt.
Maximum Linear Displacement	XMAX	1.0 mm
Reference Efficiency	nO	3.48 %
Diaphragm Area	SD	490.8 cm2
Losses Electrical Resistance	RES	42.5 Ω
Voice Coil Inductance @ 1kHz	LE	0.9 mH
Constructive Characteristics
Magnet	Ferrite
Voice Coil Winding	Copper
Voice Coil Former	Kapton
Cone	Paper
Surround	Integrated Paper
Dust Dome	Solid Paper
Basket	Pressed Sheet Steel