Celestion's first guitar loudspeaker featuring a ceramic magnet structure, the G12M Greenback presented almost as much magnetic flux to the voice coil as an Alnico formulation, but in a much more compact space. As a result the Greenback became the guitar loudspeaker that paved the way for use with higher power amplifiers. And, of course, the ceramic magnet presented its own unique tonal characteristics.
The Greenback has a loud and assertive character that sounds great through a valve amp pushed into overdrive. The speaker has evolved over the decades and still presents that instantly familiar woody tone, delivered with a knockout punch.
Chassis type Pressed steel
DC resistance, re Available 6.7? or 13.1?
Frequency range 75-5000Hz
Magnet type Ceramic
Magnet weight 35oz, 0.99kg
Nominal diameter 12", 305mm
Nominal impedance Available 8? or 16?
Power rating 25Wrms
Resonance frequency, Fs 75Hz
Voice coil diameter 1.75", 44.5mm
Voice coil material Round copper
Cut-out diameter 11.1", 283mm
Diameter 12.2", 309mm
Magnet structure diameter 5.9", 150mm
Mounting slot dimensions 0.31", 7.9mm Ø
Mounting slot PCD 11.7", 297mm
Number of mounting slots 4
Overall depth 5.1", 130mm
Unit weight 7.9lb, 3.6kg
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