Description: The G12M Greenback is perhaps the definitive vintage Celestion ceramic magnet guitar speaker. Developed in the mid-sixties it was quickly adopted by players like Hendrix, Clapton, Beck and Page who typified the louder and more aggressive blues rock playing styles that came to characterize that era. The G12M-65 Creamback produces the familiar woody G12M tone but handles greater power, making it ideally suited for today's amps when a vintage tone is desired. The increased power handling brings with it additional low end grunt complementing the warm and vocal mid range crunchy upper- mids and sweet refined highs. Specifications: Nominal diameter: 305mm / 12in Power rating: 65W Rated impedance: 8O Sensitivity: 97dB Chassis type: Pressed steel Magnet type: Ceramic Magnet weight: 0.99kg / 35oz Voice coil diameter: 1.75in / 44.5mm Voice coil material: Round copper Frequency range: 75-5000Hz Resonance frequency, Fs: 75Hz DC resistance, Re: 6.7O & 13.1O Mounting Information: Cut-out diameter: 283mm / 11.1in Diameter: 309mm / 12.2in Magnet structure diameter: 150mm / 5.9in Mounting hole dimensions: 7.9mm / 0.31in Ø Mounting hole PCD: 297mm / 11.7in Number of mounting holes: 8 Chassis depth (inc gasket): 91mm / 3.56in Magnet depth: 39mm / 1.54in Overall depth: 130mm / 5.1in Unit weight: 3.6kg / 7.9lb