CELESTION T4427 WOOFER 12” ALNICO BLUE 8OHM FOR GUITAR AMP 15W 100dB

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 belllike 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.

• 98 dB sensitivity 1 W / 1 m
• 400 W + 60 W Power Handling
• 3" + 1.5" Copper Clad Sandwich Voice Coil
• Single Point Source providing coherent Wave Front
• Optical for compact 2-way Systems

• Neodymium Coaxial Transducer
• 98 dB Sensitivity 1 W / 1 m
• 500 W + 80 W Power Handling
• 3" Copper Sandwich Voice Coil
• Triple Aluminum demodulating Rings
• Elliptical 80° x 60° Waveguide for precise directivity
• Single Point Source providing coherent Wave Front
• Very high SPL, superb Quaity Sound
• Optimal for compact 2-way Systems

Long excursion 12" woofer with 800W power handling for
subwoofer application. A special 3" copper voice coil using
proprietary high temperature adhesives and an optimized
magnet assembly guarantees superb LF dynamic range with a
very low distortion. Due to the linear characteristics of the 12
PZ 32, exceptional results are obtained in horn loaded
subwoofer applications.

Specifications
Nominal Diameter 320 mm (12 in)
Nominal Impedance 8 Ω
Minumum Impedance 7.8 Ω
Power Handling
(70 –700 Hz)
Nominal1 400 W
Continuous Program2 800 W
Sensitivity (1W/1m)3 95 dB
Frequency Range 40-2500 Hz
Voice Coil Diameter 76 mm (3 in)
Winding Material Copper
Former Material Glass Fibre
Winding Depth 22 mm (7/8 in)
Magnetic Gap Depth 10 mm (3/8 in)
Flux Density 1.1 T
Also available in 4 Ω, data upon request

Thiele & Small Parameters4
Fs 38 Hz
Re 6.2 Ω
Qes 0.2
Qms 5.9
Qts 0.19
Vas 102 dm3 (3.6 ft3)
Sd 522 cm2 (80.9 in2)
η0 2.7%
X max ± 5.5 mm
X var ± 5.5 mm
Mms 64 g
Bl 21.7 T·m
Le 2.7 mH

Mounting and Shipping Information
Overall Diameter 316 mm (12.4 in)
Bolt Circle Diameter 296 mm (11.6 in)
Baffle Cutout Diameter 282 mm (11.1 in)
Depth 134 mm (5.3 in)
Flange and Gasket Thickness 16 mm (5/8 in)
Net Weight 7.6 kg (16.7 lb)
Shipping Weight 8.5 kg (18.7 lb)
Shipping Box 380x380x170 mm
(15x15x6.7 in)
1 2 hours test made with continuous pink noise signal (6 dB crest factor) within the
specified range. Power calculated on rated minimum impedance. Loudspeaker in
free air.
2 Power on Continuous Program is defined as 3 dB greater than the Nominal rating.
3 Applied RMS Voltage is set to 2.83V for 8 ohms Nominal Impedance. Average
SPL from 200 to 2500 Hz.
4 Thiele-Small parameters are measured after a high level 20 Hz sine wave preconditioning
test.