High power coaxial woofer for bass guitar and pro audio applications.
Content
General
Product type
Loudspeaker Chassis
Type
PA
Nominal Diameter
12 "
Nominal Diameter
305 mm
Voice Coil
3 "
Voice Coil
76 mm
Overall diameter
314.45 mm
Pitch Circle Diameter
295.15 mm
Cut- out Measurement
280.92 mm
Diameter of fixing holes
6.5 mm
Depth
142.875 mm
Nominal Impedance
8 Ohm(s)
Nominal Load Capacity
400 W
maximum rated load
800 W
Sensitivity (1 W / 1 m)
95.4 dB
Frequency response
40 - 3200 Hz
Voice Coil Material
copper
Magnet
Neodymium
Depth of the magnetic gap
9.27 mm
Thiele & Small Parameter
Fs (Resonance Frequency)
42 Hz
Re (DC resistance)
5.7 Ohm(s)
Qms (mechanical quality)
8.37
Le (inductance of the voice coil)
0.61 mH
Qes (electrical quality)
0.31
Qts (overall quality)
0.3
Vas (equivalent volume)
111.5
Mms (moving mass)
54 g
BL (power factor)
16.02 T/m
Xmax (maximum displacement)
7.47 mm
Cms (elasticity of the suspension)
0.27 mm/N
Sd (membrane area)
545.4 cm²
Weight
3,31 kg
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
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
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
12” neodymium woofer offers 300Wrms (AES) continuous power handling and 98dB sensitivity
3” high temperature Inside/Outside voice coil efficiently dissipates heat, preventing sensitivity loss through thermal compression
M-roll surround provides progressive excursion control, yielding a smooth response even at extremes of frequency range
Extremely lightweight design combined with a highly efficient magnet assembly results in exceptional power-to-weight ratio
Intelligent heat management in both chassis and magnet assembly design further minimizes distortion
Nominal diameter (mm/in)
305/12
Power Rating (AES, W rms)
300
Nominal impedance (Ω)
8
Voice coil diameter (mm/in)
76.2/3.0
Magnet type
Neodymium
Chassis type
Cast aluminium
Sensitivity (dB)
98
Frequency range (Hz)
50-4000
Coil material
Round copper
Cone material
Kevlar loaded paper
Surround material
Cloth-sealed
Suspension
Single
Xmax (mm/in)
4/0.16
Gap depth (mm/in)
8.0/0.32
Voice coil winding width (mm/in)
16.0/0.63
Small Signal Parameters
D (m/in)
0.26/10.24
Fs (Hz)
56.4
Mmd (g/oz)
54.41/1.92
Mair
6.92/0.244
Qms
2.74
Qes
0.33
Qts
0.29
Re (Ω)
5.77
Vas (lt/ft3)
51.78/1.828
BI (Tm)
19.61
Cms (mm/N)
0.13
Rms (kg/s)
7.921
Le (mH)
0.778
Mounting Information
Overall diameter (mm/in)
310/12.2
Overall depth (mm/in)
137/5.39
Cut-out diameter (mm/in)
286/11.26
Mounting slot dimensions (mm/in)
6.5/0.26 x 9.5/0.37
Number of mounting slots
8
Mounting slot PCD range (mm/in)
294/11.57
Unit weight (kg/lb)
2.6/5.7
Packed Dimensions and Weight
Single pack size W x D x H (mm/in)
-
Single pack weight (kg/lb)
-
Multipack (60) size W x D x H (mm/in)
1080 x 980 x 880/42.5 x 38.6 x 34.6
Multipack (60) weight (kg/lb)
146/321
1400 W continuous program power capacity
100 mm (4 in) copper voice coil
45 – 1000 Hz response
93 dB sensitivity
Double silicone spider with optimized compliance
Originally created as a higher-power handling variant of the G12M Greenback, the G12-65 is widely regarded as one of the best speakers ever produced for use in a 4x12 cabinet.
With its fast attack and tightly controlled low-end, the G12-65 became a firm favourite in the ʼ80s with hard rock players. The precisely tuned midrange and crisp defined top-end contribute to an aggressive crunch sound that punches through the mix while the mid-range warmth and detail give weight and depth to single notes.
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