G12M-50 Hempback

Combining a hemp cone specifically chosen for its tonal character and a medium-weight (35oz) ceramic magnet, the G12M-50 Hempback takes Celestion tone in an exciting new direction.

Well-defined and able to deliver plenty of heft, the Hempback delivers a thump in the low end, a finely balanced midrange (with just a little Celestion crunch thrown in) and smooth, singing highs. It all adds up to a speaker that’s perfect for deploying with brighter sounding amps, where a more laid back feel is required.

Load up a Hempback for a smooth and “smoky” sound that’s musical and responsive, and let your hemp tone shine through.

Celestion Introduces the G12M-50 Hempback Guitar Speaker

Ipswich, UK (January 18, 2021) —At this year’s Believe in Music virtual show, Celestion, the world’s premier designer and manufacturer of guitar loudspeakers and well-known as the voice of rock and roll behind many of the world’s most memorable guitar performances, announces the introduction of the G12M-50 Hempback, a new guitar speaker which takes Celestion tone in an exciting new direction.

The G12M-50 Hempback is the first ever hemp cone guitar speaker built by Celestion. It features a cone specifically chosen for its tonal character combined with a medium-weight (35oz) ceramic magnet, Well defined and powerful the speaker delivers a thump in the low end, a finely balanced midrange (with just a little Celestion crunch thrown in) and smooth, singing highs. It all adds up to a speaker that’s perfect for deploying with brighter sounding amps, where a more laid- back feel is required. Load up a Hempback for a smooth and “smoky” sound that’s musical and responsive, and let the hemp tone shine through.



Nominal diameter        305mm/12in

Power handling           50W

Nominal impedance    8Ω, 16Ω

Sensitivity                    99dB

Chassis type               Pressed Steel

Voice coil diameter      44mm/1.75in

Voice coil material       Round copper

Magnet type                Ceramic

Magnet weight             0.9kg/35oz

Frequency range         75Hz-5000Hz

Resonance freq.          75Hz

About Celestion and Celestion Guitar Speakers

An important element to essential British guitar tone since the birth of Rock & Roll, Celestion Guitar Speakers are famous for their lively and vocal midrange character with plenty of sparkle and chime. With worldwide headquarters in Ipswich, England, Celestion design, develop and manufacture premium guitar and bass loudspeakers, and high-quality professional audio drivers for sound reinforcement. These world-renowned speakers are used onstage and in clubs, theatres and other venues the world over. Contact Celestion at: info@celestion.com and visit us on Facebook at www.facebook.com/celestion.


My G12Ms have got black covers, how are they different to the Greenback?

Although the standard colour for G12M rear covers was green (‘field green’ it was called originally), G12M and G12H speakers were also made with black, as well as grey, beige and cream rear covers at various times. This was probably due to a shortage of the correct colour plastic to make them from (e.g. late delivery of the raw material). The different colour covers were only a cosmetic change not affecting the acoustic performance of the speakers in any way. Black, grey, cream, beige or green, they’re all ‘Greenbacks’.

G12H-150 Redback

The G12H-150 Redback has been created for players who are looking for extreme power handling but refuse to compromise on great tone. Rated at a gargantuan 150-watts the Redback is constructed with a supersized 2-inch voice coil and features the heaviest G12 magnet. The result is a guitar speaker that sounds 100% Celestion in character yet is primed to withstand a pummelling from a 100-watt head all by itself and still come back for more.The Redback proves that you no longer need to choose between power and tone. With a tight well-controlled low end detailed midrange and more relaxed treble Celestion’s engineering expertise has produced a truly high power guitar speaker that can still deliver balance responsiveness and superb playability with muscular ease.With lower power combos expect tons of smooth clean tone and don’t be afraid to plug in your favourite stomp box. Thinking of downsizing your cabinet? Simply hook up a single Redback to your 100-watt head and generate giant slabs of frightening monstrous tone.

G12H-75 Creamback

Back in the late 60s the G12H was created by fixing an ‘H’ type (heavy) magnet to the body of a G12M guitar speaker. Result: a speaker with more power and a different tonal balance: firmer bass and a more pronounced top end. So we added an ‘H’ magnet to the G12M-65 Creamback to create a guitar speaker that delivers the sonic signature of a G12H combined with Creamback levels of power handling. The result is the G12H-75 Creamback. It delivers 75-watts of power handling with ease and has unmistakeable G12H tone with a tighter low end than the G12M-65 Creamback and a punchier more dynamic high end. The H magnet brings additional focus body and girth to the Creamback tone. It thickens single notes resulting in a highly articulate vocal character. These additional characteristics mean that the G12H-75 Creamback offers exceptional performance when used for lead guitar and sounds massive loaded into a 4×12 cab!

G12-35XC (Legacy)

The 35XC is built using tried-and-tested materials and construction methods and incorporates several new design features and techniques. Drawing on 90 years’ experience we’ve been able to create a uniquely versatile speaker whose attributes will be familiar to those who know Pulsonic coned speakers.

Capable of delivering open and musical cleans without sacrificing an immensely satisfying crunch or searing overdriven lead lines the 35XC is made to engage your musical soul. This guitar speaker exhibits poise tonal evenness and freedom from souring colourations characteristics typical of speakers with Pulsonic cones as well as adding a little more sparkle and air to your sound.

A 90th Anniversary gift from Celestion to players who won’t compromise in their search for great tone.

G12M-65 Creamback

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.

G12 – 50GL Lynchback (Legacy)

One of the most recognizable names in the world of heavy metal guitar George Lynch has recorded more than twenty albums and is famous for his accomplished and inventive guitar playing. In 2010 George challenged Celestion to build his dream guitar loudspeaker. He wanted a new style of speaker blending world-renowned Celestion vintage tonality with the capability of providing on demand a harder-edged and more modern sound.

Tonally the G12-50GL Lynchback incorporates the kind of detail and harmonic complexity found in vintage models of the late 1960s combined with increased headroom and the attitude aggression and mid-band character of some of the more modern Celestion speakers. The result is an ideal balance between a detailed vintage warmth that makes your lead sound sing and an up-front attitude that delivers punchier rhythm tones capable of cutting through the mix.

Heritage Series G12M (Legacy)

The original G12M of the 1960s was Celestion’s first guitar speaker to use a ceramic magnet and paved the way for high power guitar amplifiers. The G12M uses a medium weight magnet to produce a sound that is smooth and warm but bright enough to hold its own against any rock backline.Known simply these days as the ‘Greenback’ the G12M’s fabled ‘brown tone’ is characterised by a warm controlled low-end a rich vocal mid-range and a delicate detailed top-end. Loaded into a 4×12 and driven hard these speakers exude warm crunchy chords and sweet searing single-notes.

Heritage Series G12H(55) (Legacy)

It’s hard to escape the sound of the G12H just listen to any Hendrix recording and chances are you’ll be hearing a whole raft of them powering the guitar out of the mix.These faithful re-creations capture the unmistakeable mojo of late 60s rock guitar tones. Unsurpassed in a 4×12 for cranking out towering huge power chords the Heritage Series G12H (55) features the 55c/s ‘bass’ cone. This model is famous for its thick syrupy tones with a deep growling back end densely complex mid-range and a finely detailed top end.