12" Blackbird 40
General Characteristics for 8Ω
Nominal Overall Diameter
307 mm
12 in
Nominal Voice Coil Diameter
32 mm
1.26 in
Magnet Weight
300 g
11 oz
Overall Weight
2 kg
4.41 lbs
Flux Density
1.28 T
Voice Coil Winding Depth
9 mm
0.35 in
Magnetic Gap Depth
6 mm
0.24 in
Thiele-Small Parameters for 8Ω
Voice Coil DC Resistance
RE
5.9 Ω
Resonance Frequency
ƒS
93.2 Hz
Mechanical Q Factor
QMS
14.29
Electrical Q Factor
QES
1.50
Total Q Factor
QTS
1.36
Mechanical Moving Mass
MMS
28.7 g
Mechanical Compliance
CMS
102 µm/N
Force Factor
BxL
8.2 Wb/m
Equivalent Acoustic Volume
VAS
34.6 lt.
Diaphragm Area
SD
490.9 cm2
Voice Coil Inductance @ 1kHz
LE
0.4 mH
Constructive Characteristics for 8Ω
Magnet
Reinforced Alnico
Voice Coil Winding
Copper
Voice Coil Former
Kapton
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
40 W
Musical Power
80 W
96 dB
General Characteristics for 16Ω
Nominal Overall Diameter
307 mm
12 in
Nominal Voice Coil Diameter
32 mm
1.26 in
Magnet Weight
300 g
11 oz
Overall Weight
2 kg
4.41 lbs
Flux Density
1.28 T
Voice Coil Winding Depth
9 mm
0.35 in
Magnetic Gap Depth
6 mm
0.24 in
Thiele-Small Parameters for 16Ω
Voice Coil DC Resistance
RE
12 Ω
Resonance Frequency
ƒS
90.1 Hz
Mechanical Q Factor
QMS
13.97
Electrical Q Factor
QES
1.85
Total Q Factor
QTS
1.63
Mechanical Moving Mass
MMS
27.4 g
Mechanical Compliance
CMS
114 µm/N
Force Factor
BxL
10.06 Wb/m
Equivalent Acoustic Volume
VAS
39 lt.
Diaphragm Area
SD
490.9 cm2
Voice Coil Inductance @ 1kHz
LE
0.72 mH
Constructive Characteristics for 16Ω
Magnet
Reinforced Alnico
Voice Coil Winding
Copper
Voice Coil Former
Kapton
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
40 W
Musical Power
80 W
95.2 dB
P-A-JP12-40BB
12",
40 watts
Ohms:
The Blackbird 40 is the first speaker in the Jet Series featuring Jensen's exclusive Reinforced AlNiCo magnet technology.
The voice of the Blackbird 40 offers a powerful, controlled bass range and all the sparkly brilliance that is typical of the classic Jensen Speakers.
Equally suited to clean, quasi-acoustic tones, to crunchy overdrive ones, up to powerfully distorted lead tones, the Blackbird 40 offers a very distinct yet versatile character. It suits a wide range of applications, form the traditional, warm, jazz, country, rock and blues tones, up to the fiercer brit-style power-chords and lead lines.
Lows
Tight/deep
Mids
Present
Highs
Brilliant
Overdrive
Crunchy
Guitarist Description
Warm and natural sounding with a remarkably deep and controlled low end, a firm midrange, topped by a transparent, chime-filled treble range. Capable of crunchy, overdriven tones, with a brilliant, detailed response.
Sound Samples
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Specification Sheet
Product Dimensions
Frequency Response Charts
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Hover over the graph to see values. View full size graph
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