We made pioneering use of Laser Doppler Interferometry to analyse the cone behaviour of an original Celestion Blue. We could then form a precise model of the vintage speaker’s characteristics and apply it to a speaker design using new materials for greater power handling.
It was found that Celestion’s ‘H’ magnet came closest in performance to Alnico. This was partnered with a new cone and new coil assembly employing modern materials with similar mass and physical properties to the originals, but better able to handle the extra heat generated through operating with higher power equipment.
Seemingly twice as loud as anything else at the same power level, the Vintage 30 handles massive overdrive sounds with ease. Tight bass, fat mids and a smooth, harmonically rich top end have made the Vintage 30 an excellent 4 x 12 loudspeaker. Of course, it’s also suitable for any other cab!
Chassis type Pressed steel
DC resistance, re Available 7.3? or 12.9?
Frequency range 70-5000Hz
Magnet type Ceramic
Magnet weight 50oz, 1.42kg
Nominal diameter 12", 305mm
Nominal impedance Available 8? or 16?
Power rating 60Wrms
Resonance frequency, Fs 75Hz
Voice coil diameter 1.75", 44.5mm
Voice coil material Round copper
Cut-out diameter 11.1", 283mm
Diameter 12.2", 309mm
Magnet structure diameter 6.1", 156mm
Mounting slot dimensions 0.31", 7.9mm Ø
Mounting slot PCD 11.7", 297mm
Number of mounting slots 4
Overall depth 5.3", 135mm
Unit weight 10.4lb, 4.7kg