The Celestion G12M Greenback remains one of the most recognisable guitar speakers ever produced, forming a key part of countless British rock recordings from the late 1960s onwards. Known for its broad midrange character, controlled low end, and smooth top end response, the Greenback became a favourite of players such as Angus Young, who has relied on them throughout much of AC/DC's career.
Rated at 25 watts, the G12M delivers the punch, compression, and breakup characteristics that helped define classic rock amplifier tones. Its restrained high end keeps overdriven sounds smooth and focused, while the strong midrange allows chords and lead lines to sit prominently in a mix. Whether fitted to a lower powered combo or used as part of a larger cabinet, the Greenback remains one of the benchmark speaker designs for vintage and modern rock tones alike.
Specifications:
Model: Celestion G12M Greenback
Speaker Size: 12" (305mm)
Power Rating: 25W
Impedance: 8Ω or 16Ω
Sensitivity: 98dB
Magnet Type: Ceramic
Magnet Weight: 0.99kg (35oz)
Voice Coil Diameter: 44mm (1.75")
Voice Coil Material: Round Copper
Frequency Range: 75Hz – 5000Hz
Resonance Frequency: 75Hz
Chassis Type: Pressed Steel
DC Resistance: 6.7Ω (8Ω version) / 13.1Ω (16Ω version)
