The GT12-8 is manufactured by EMINENCE. EMINENCE loudspeakers are the leaders in guitar tone and this particular speaker was chosen because of its added definition for both single coil and dual coil humbucking pickups to reproduce all guitar harmonics. The 1.75-inch voice coil is i deal. Any larger, the high frequency starts to roll off. The high efficiency of 100 dB at 1 watt makes low powered amps sound big, and you will get deafening output form its 100 watt capacity. The 8 ohm impedance will match most amplifiers.

 

GT12-8 Specifications:

Frequency Response: 75Hz - 6kHz
Power: 100 Watts RMS
Sensitivity: 100dB 1W/1m
Magnet Structure: Ferrite Core
Basket Frame: Stamped
Voice Coil: 1.75-inch
Impedance: 8 Ohms
NetWt: 7.5 lbs
Warranty: 90 Days

Mechanical Specifications:

Overall Diameter: 12.25-inch
Baffle Cutout Diameter: 11-inch
Depth: 5-inch

Thiele & Small Parameters:

FS(Hz): 101 
Re(Ω): 13
Qes: 1.20
Qms: 14.29
Qts: 1.11
Vas(L): 1.07
Sd(m2): 517
Mms(gr): 30.4
B1: 14.4
Le@1K(mH): 1.04
Cms(mm/N): 0.8