Eminence JS 1250 A 12" Speaker 50 W 8 Ohms

Respected as much for his tone as his guitar skills, Josh Smith's concept for the ultimate guitar speaker involved combining the lows of the Eminence Tonespotter, the clean highs of the Wizard, and the natural grit and sparkle of the Red Fang alnico. The result is an extremely versatile speaker with vintage tone and the ability to handle the power of modern amps.

Specifications:

Product type:	Loudspeaker Chassis
Type:	guitar
Nominal Diameter:	12 "
Nominal Diameter:	305 mm
Voice Coil:	1.75 "
Voice Coil:	44 mm
Overall diameter:	309.12 mm
Pitch Circle Diameter:	298.5 mm
Section Diameter:	282.7 mm
Diameter of fixing holes:	6.1 mm
Depth:	132.84 mm
Nominal Impedance:	8 Ohm(s)
Nominal Load Capacity:	50 W
Sensitivity (1 W / 1 m):	101.4 dB
Frequency response:	80 - 5200 Hz
Voice Coil Material:	copper
Magnet:	Ferrite

Thiele & Small Parameter:

Fs (Resonance Frequency):	92 Hz
Re (DC resistance):	6.42 Ohm(s)
Qms (mechanical quality):	15.69
Le (inductance of the voice coil):	0.5 mH
Qes (electrical quality):	0.63
Qts (overall quality):	0.61
Vas (equivalent volume):	41.21
Mms (moving mass):	28 g
BL (power factor):	12.91 T/m
Xmax (maximum displacement):	0.79 mm
Cms (elasticity of the suspension):	0.11 mm/N
Sd (membrane area):	519.5 cm²
Weight:	5,7 kg