Eminence Eric Johnson B 12" Speaker 50 W 16 Ohms

Eric Johnson Signature Model - 12A Eric Johnson, George Alessandro and Eminence have teamed up to create the EJ1250, a 50 watt alnico guitar speaker that delivers amazing vintage tone. Featuring both American and British characteristics, the EJ1250 has punchy lows, warm throaty mids, and articulate highs. The EJ1250 was designed from the past with the future in mind, and is made by hand right here in the USA.Specifications:

Product type:	Loudspeaker Chassis
Type:	Guitars
Nominal Diameter:	12 "
Nominal Diameter:	304.8 mm
Voice Coil:	1.75 "
Voice Coil:	44.45 mm
Overall diameter:	305.31 mm
Pitch Circle Diameter:	295.4 mm
Section Diameter:	278.64 mm
Diameter of fixing holes:	6.35 mm
Depth:	157.98 mm
Nominal Impedance:	16 Ohm(s)
Nominal Load Capacity:	50 W
Sensitivity (1 W / 1 m):	100.8 dB
Frequency response:	80 - 5100 Hz
Voice Coil Material:	copper
Magnet:	Alnico
Depth of the magnetic gap:	7.95 mm

Thiele & Small Parameter:

Fs (Resonance Frequency):	84.78 Hz
Re (DC resistance):	14.41 Ohm(s)
Qms (mechanical quality):	20.1
Le (inductance of the voice coil):	0.98 mH
Qes (electrical quality):	0.73
Qts (overall quality):	0.71
Vas (equivalent volume):	48.71
Mms (moving mass):	27.45 g
BL (power factor):	16.95 T/m
Xmax (maximum displacement):	1.2 mm
Cms (elasticity of the suspension):	0.13 mm/N
Sd (membrane area):	519.5 cm²
Weight:	3 kg