Blue Alnico


This classic guitar speaker actually started life as a radio speaker that was modified specifically for use in electric guitar amplifiers. 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 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.


General Specifications

Nominal diameter

12", 305mm

Power rating


Nominal impedance

Available 8Ω or 15Ω



Chassis type

Pressed steel

Voice coil diameter

1.75", 44.5mm

Voice coil material

Round copper

Magnet type


Frequency range


Resonance frequency, Fs


DC resistance, Re

Available 6.4Ω or 11.8Ω

Mounting Information

Cut-out diameter

11.1", 283mm


12.2", 309mm

Magnet structure diameter

5.0", 128mm

Mounting slot dimensions

0.31", 7.9mm Ø

Mounting slot PCD

11.7", 297mm

Number of mounting slots


Overall depth

6.5", 165mm

Unit weight

9.3lb, 4.2kg

Celestion Blue Alnico Speaker

  • Returns are handled as follows: If the customer is not satisfied with the product purchased, the customer has 15 days from receipt of item(s) to return it. All shipping costs will be paid by the customer.


    Any factory defects will be handled through the manufacturers warranty process and according to the manufacturers specified warranty time table.

  • Shipping is a standard $25.00.  Please make sure your shipping/delivery address is exact to assure timely shipping