12" Blackbird 40

12" Blackbird 40

General Characteristics
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
Nominal Impedance 16Ω
Voice Coil DC Resistance RE 5.9 Ω 12 Ω
Resonance Frequency ƒS 93.2 Hz 90.1 Hz
Mechanical Q Factor QMS 14.29 13.97
Electrical Q Factor QES 1.85
Total Q Factor QTS 1.36 1.63
Mechanical Moving Mass MMS 28.7 g 27.4 g
Mechanical Compliance CMS 102 µm/N 114 µm/N
Force Factor BxL 8.2 Wb/m 10.06 Wb/m
Equivalent Acoustic Volume VAS 34.6 lt. 39 lt.
Diaphragm Area SD 490.9 cm2 490.9 cm2
Voice Coil Inductance @ 1kHz LE 0.4 mH 0.72 mH
Constructive Characteristics
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
Nominal Impedance 16Ω
Rated Power 40 W 40 W
Musical Power 80 W 80 W
Sensitivity@1W,1m 96 dB 95.2 dB
40 watts
Available in 8Ω, 16Ω

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.

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.
Specification Sheet
Product Dimensions
Note: all dimensions are in mm.