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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.
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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.
| General specifications |
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| Nominal diameter | 12“, 305mm | | Power Rating | 15W | | Nominal impedance | 8Ω and 15Ω | | Sensitivity | 100dB | | Chassis type | Pressed steel | | Voice coil diameter | 1.75“, 44.5mm | | Voice coil material | Round copper | | Magnet type | Alnico | | Frequency range | 75-5000Hz | | Resonance frequency, Fs | 75Hz | | DC resistance, Re | 6.4Ω & 11.8Ω | | Mounting Information | | Diameter | 12.2“, 309mm | | Overall depth | 6.5“, 165mm | | Magnet structure diameter | 5.0“, 128mm | | Cut-out diameter | 11.1“, 283mm | | Mounting slot dimensions | 0.31“, 7.9mm Ø | | Number of mounting slots | 4 | | Mounting slot PCD | 11.7“, 297mm | | Unit weight | 9.3lb, 4.2kg |
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| 700 W continuous program power capacity |
| | 80° nominal coverage |
| | 45 – 18000 Hz response |
| | 99 dB sensitivity |
| | Single Neodymium magnet assembly |
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- 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
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KAPPA PRO-12A Professional SeriesRecommended for professional audio in a vented mid-bass, and vented bass enclosure incorporating a high-pass filter.
Product type
Loudspeaker Chassis
Nominal Diameter
304.8 mm
Overall diameter
314.5 mm
Pitch Circle Diameter
293.8 mm
Cut- out Measurement
281.1 mm
Diameter of fixing holes
6.5 mm
Nominal Impedance
8 Ohm(s)
Nominal Load Capacity
500 W
maximum rated load
1000 W
Sensitivity (1 W / 1 m)
97.1 dB
Frequency response
57 - 2800 Hz
Voice Coil Material
copper
Depth of the magnetic gap
9.53 mm
Fs (Resonance Frequency)
37 Hz
Re (DC resistance)
5.46 Ohm(s)
Qms (mechanical quality)
6.93
Le (inductance of the voice coil)
1.22 mH
Qes (electrical quality)
0.25
Qts (overall quality)
0.24
Vas (equivalent volume)
121
BL (power factor)
17.3 T/m
Xmax (maximum displacement)
4.8 mm
Cms (elasticity of the suspension)
0.32 mm/N
Sd (membrane area)
519.5 cm²
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| 1400 W continuous program power capacity |
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| 100 mm (4 in) copper voice coil |
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| 45 – 1000 Hz response |
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| 93 dB sensitivity |
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| Double silicone spider with optimized compliance |
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