12" Tornado Stealth 100

16Ω

General Characteristics for 8Ω

Nominal Overall Diameter
307 mm
12 in
Nominal Voice Coil Diameter
50 mm
2 in
Magnet Weight
200 g
7 oz
Overall Weight
2.2 kg
4.85 lbs
Flux Density
1.2 T
Voice Coil Winding Depth
10 mm
0.39 in
Magnetic Gap Depth
8 mm
0.31 in

Thiele-Small Parameters for 8Ω

Voice Coil DC Resistance
RE
6.81 Ω
Resonance Frequency
ƒS
72 Hz
Mechanical Q Factor
QMS
9.51
Electrical Q Factor
QES
0.63
Total Q Factor
QTS
0.52
Mechanical Moving Mass
MMS
29.9 g
Mechanical Compliance
CMS
163 µm/N
Force Factor
BxL
12.93 Wb/m
Equivalent Acoustic Volume
VAS
55.9 lt.
Maximum Linear Displacement
XMAX
± 1 mm
Reference Efficiency
nO
2.82 %
Diaphragm Area
SD
490.9 cm2
Losses Electrical Resistance
RES
148.9 Ω
Voice Coil Inductance @ 1kHz
LE
0.7 mH

Constructive Characteristics for 8Ω

Magnet
Neodymium
Voice Coil Winding
Copper
Voice Coil Former
Nomex
Cone Material
Paper
Surround Material
Integrated Paper
Dust Dome Material
Non-treated Cloth
Basket Material
Pressed Sheet Steel
Surround Treatment
Yes

Electrical Characteristics for 8Ω

Nominal Impedance
8 Ω
Rated Power
100 W
Musical Power
200 W
Sensitivity@1W,1m
98.5 dB

General Characteristics for 16Ω

Nominal Overall Diameter
307 mm
12 in
Nominal Voice Coil Diameter
50 mm
2 in
Magnet Weight
200 g
7 oz
Overall Weight
2.2 kg
4.85 lbs
Flux Density
1.2 T
Voice Coil Winding Depth
10 mm
0.39 in
Magnetic Gap Depth
8 mm
0.31 in

Thiele-Small Parameters for 16Ω

Voice Coil DC Resistance
RE
13.12 Ω
Resonance Frequency
ƒS
70 Hz
Mechanical Q Factor
QMS
14.28
Electrical Q Factor
QES
0.74
Total Q Factor
QTS
0.7
Mechanical Moving Mass
MMS
31.9 g
Mechanical Compliance
CMS
163 µm/N
Force Factor
BxL
15.72 Wb/m
Equivalent Acoustic Volume
VAS
55.7 lt.
Maximum Linear Displacement
XMAX
± 1 mm
Reference Efficiency
nO
2.45 %
Diaphragm Area
SD
490.9 cm2
Losses Electrical Resistance
RES
252.5 Ω
Voice Coil Inductance @ 1kHz
LE
1.16 mH

Constructive Characteristics for 16Ω

Magnet
Neodymium
Voice Coil Winding
Copper
Voice Coil Former
Nomex
Cone Material
Paper
Surround Material
Integrated Paper
Dust Dome Material
Non-treated Cloth
Basket Material
Pressed Sheet Steel
Surround Treatment
Yes

Electrical Characteristics for 16Ω

Nominal Impedance
16 Ω
Rated Power
100 W
Musical Power
200 W
Sensitivity@1W,1m
97 dB
JN12-100TRS
12",
100 watts
Ohms
16Ω

The Jensen Tornado Stealth 100 is derived from the original Jensen Tornado used in Fender’s® GB Signature Twin Reverb®, among others, with an added stylish bell cover on the magnet assembly. This speaker offers crystal clear, clean tones accented by shimmering highs with each note sounding tight and well defined.

Lows
Loose/Fat
Mids
Subdued
Highs
Smooth
Overdrive
Edgy
Guitarist Description
Crystal clear clean tones, accented by shimmering highs with each note sounding tight and well defined. When presented with overdrive distortion, the notes remain well defined with lots of bite.
Specification Sheet
Product Dimensions
Frequency Response Charts
16Ω
User Reviews

I ended up buying the Tornado Stealth 80 to go in my Bolt 30 watt tube combo.

Next to my Bolt 60 with the Tornado 100, these amps which otherwise sound identical, sound very different with these pictures. The Tornado Stealth 80 is very tight in the low end as advertised, and possibly a bit aggressive (I'm not big on metaphor when talking about sound), while the Tornado 100 is "rounder" and has more even-frequencies all around. Of course, the Tornado 80 is brand new and so I suspect it will take a few months to really hear what the speaker will end up sounding like, but for now I'm mostly satisfied.

Daniel
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