Celestion Alnico Blue 12″ Speaker


The world’s first dedicated guitar loudspeaker and a part of musical history.

Back in the 1950s, Celestion witnessed the emergence of a new breed of musician – the electric guitarist – and responded to their needs for a rugged, reliable loudspeaker by modifying the G12 radio speaker. The unique tonal character of the Celestion Blue, combined with the valve amps of the time, helped to define the electric guitar as we know it today.


The Blue found favour with notable guitarists like Brian May, due to its glorious dampened attack, warm lows, mellow upper-mids and brilliant bell like top-end. When coupled with a suitable amplifier it evokes rich definition and develops beautiful musical compression when pushed. According to tone enthusiasts worldwide, the Blue is the benchmark for guitar speaker perfection.


In its original incarnation as the G12 T530 it appeared in several colour variations, but it was the Blue version, fitted as standard into Vox AC30 amps, that secured its place in guitar tone history. The Blue has a bright, lively character with a carefully controlled bottom end and shimmering highs which remains popular and distinctive to this day. Loaded into a single 12″ or 2 x 12″ cabinet, this legendary loudspeaker suits a wide range of playing styles.

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Specifications: • Nominal diameter: 12″ (305 mm) • Power rating: 15 watts • Sensitivity: 100 dB • Chassis type: Pressed steel • Voice cool diameter: 1.75″ (44.5 mm) • Voice coil material: Round copper • Magnet type: Alnico • Frequency range: 75-5,000 Hz • Fs: 75 Hz • DC resistance.

Mounting Information: • Diameter: 12.2″ (309 mm) • Overall depth: 6.5″ (165 mm) • Magnet structure diameter: 5″ (128 mm) • Cut-out diameter: 11.1″ (283 mm) • Mounting slot dimensions: 0.31″, (7.9 mm Ø) • Number of mounting slots: 4 • Mounting slot PCD: 11.7″ (297 mm) • Weight: 9.3 lb. (4.2 kg).

Weight 10 lbs
Dimensions 12 × 12 × 6 in