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Celestion
Celestion 25W Heritage G12M (55) 12" 8ohm Speaker
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The store is open 10am - 6pm Monday to Saturday and 11am - 5pm Sunday and bank holidays.
The stock information shows the quantity of units that are available to purchase at the Guildford store and the quantity of units that are available at our off-site Guildford warehouse. These stock levels are updated in real time.
Our Click and Collect service is available at our Guildford store from 10am - 6pm Monday to Saturday, and 11am - 5pm on Sunday. You can either choose Click and Collect as your delivery option online or, during store opening hours, call our sales team on 01483 456777 for assistance with placing your order.
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If the only available stock is in our off-site warehouse it can be brought to the store location for you to try - you just need to contact the store within opening hours. Please note any requests received after 3.30pm will not arrive at the store until the following morning.
Please be aware that stock availability can change quickly both online and in-store, so we would always recommend placing your Click and Collect order as soon as possible to reserve your item.
SKU: CEL-T1510
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Product Description
The Celestion Heritage G12M T1510 recreates the legendary 1970s Blackback G12M with a 55Hz bass cone, capturing the unmistakable sound heard on countless classic rock records. With 25 watts of power, 8 ohm impedance and that iconic Greenback-style midrange, it is the perfect choice for players chasing authentic vintage crunch, sweet sustain and a tight, weighty low end.
Modelled on the revered T1511 specification, this Heritage series speaker delivers the punch, sparkle and vocal mids that defined the tones of players like Paul Kossoff. Whether you are restoring a vintage cab or upgrading a modern one, the G12M T1510 gives you the feel and response of a well-loved 1970s Celestion, straight out of the box.
Authentic 1970s Blackback Heritage
Celestion Blackbacks are famed as 1970s variations on the classic Greenback, and the T1510 pays faithful tribute to that era. By recreating the construction and tonal profile of the original G12M with a 55Hz cone, Celestion have bottled the essence of their golden-age sound, ideal for players who want period-correct tone and feel without relying on fragile vintage units.
55Hz Bass Cone for Tight, Weighty Lows
The 55Hz cone tuning shifts the emphasis towards a fuller, deeper low end compared to standard 75Hz Greenback-style speakers. This makes the Heritage G12M T1510 particularly suited to closed-back 4x12s and punchy rock rigs, where you want tight, controlled bass that supports the band without getting flabby or overpowering.
Classic Celestion Midrange and Sweet Sustain
At the heart of the G12M sound is that unmistakable midrange growl and singing sustain. The Heritage T1510 combines a ceramic magnet, 25 watt power handling and traditional G12M voicing to produce harmonically rich overdrive, articulate pick attack and a smooth top end that flatters everything from crunchy chords to expressive lead lines.
Ideal for Vintage Restorations and Boutique Builds
With its period-correct pressed steel chassis, ceramic magnet and 12 inch format, the Heritage G12M T1510 is a natural fit for restoring classic British cabs or voicing boutique amplifiers with an authentic 1970s rock character. Its 96dB sensitivity keeps the overall volume manageable while still delivering plenty of presence and projection on stage or in the studio.
Features
- Heritage Recreation of the Classic G12M Blackback - Faithfully based on the celebrated 1970s T1511 Blackback, this speaker delivers the quintessential Celestion character associated with iconic rock tones, giving you vintage sound and response in a brand-new, reliable unit.
- 55Hz Bass Cone for Enhanced Low-End Punch - The lower cone resonance focuses the speaker on tight, powerful bass and lower mids, making riffs feel bigger and more authoritative while keeping the low end controlled in high-gain or high-volume situations.
- 25W Power Rating with Classic Greenback Feel - With 25 watts of handling, the G12M T1510 lets your amp work in its sweet spot at realistic volumes, encouraging natural cone break-up, musical compression and the touch-sensitive dynamics players associate with vintage Celestions.
- 96dB Sensitivity and 8 Ohm Impedance - A moderate 96dB sensitivity balances stage volume and headroom, while the 8 ohm rating makes it easy to pair with a wide range of heads and cabinets, whether you are loading a single combo or building a multi-speaker rig.
Specifications
General
- Model: Heritage G12M T1510
- Nominal Diameter: 305mm / 12in
- Power Rating: 25W
- Rated Impedance: 8Ω
- Sensitivity: 96dB
- Frequency Range: 55Hz-5000Hz
- Resonance Frequency (Fs): 55Hz
Construction
- Chassis Type: Pressed steel
- Magnet Type: Ceramic
- Magnet Weight: 0.99kg / 35oz
- Voice Coil Diameter: 44.5mm / 1.75in
- Voice Coil Material: Round copper
Mounting Information
- Cut-Out Diameter: 283mm / 11.1in
- Overall Diameter: 309mm / 12.2in
- Magnet Structure Diameter: 150mm / 5.9in
- Mounting Hole Diameter: 7.9mm / 0.31in
- Mounting Hole PCD: 297mm / 11.7in
- Number of Mounting Holes: 4
- Chassis Depth (including gasket): 91mm / 3.56in
- Magnet Depth: 39mm / 1.54in
- Overall Depth: 130mm / 5.1in
- Unit Weight: 3.6kg / 7.9lb
