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Post Christmas Guitar Sale - ON NOW - Extra 10% Off - Excludes Clearance Items.
Post Christmas Guitar Sale - ON NOW - Extra 10% Off - Excludes Clearance Items.

Celestion G12M Greenback Classic Series 12 Inch 25W Speaker 8 OHM T1220

SKU 28/G12M-GREENBACK-8
Original price $259.00
Original price $259.00 - Original price $259.00
Original price $259.00
Current price $215.10
$215.10 - $215.10
Current price $215.10

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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
Sensitivity 98dB
Voice coil diameter 1.75", 44.5mm
Voice coil material Round copper
Mounting Information
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

For more information, visit our warranties page.

*IMPORTANT* For Customers in WA: Due to floods and rail network shipping distruptions, deliveries to WA are expected to be delayed. Orders will incur an additional freight cost. Please contact us via email or phone to confirm the expected cost.

For more information click here.

Shipping: Shipping is calculated during checkout.

Large Items & Remote Areas

We offer free shipping on most items and to most areas. However, some large items and remote areas will attract a shipping charge which may not be added in the checkout. In the event of this we will contact you to discuss.

Please feel free to Contact Us if you would like to confirm shipping rates.

Click and Collect Orders: Please enter a shipping address during the checkout process. On the following page you will have an option to select 'Click & Collect' as your shipping method. One of our friendly staff will be in contact with you once your order is ready for collection.