Speaker - 10" Jensen Blackbird 40W - 8 ohm - Made in Italy

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Speaker - 10" Jensen Blackbird 40W - Made in Italy - 8 ohm 

The Jensen Blackbird 40 speakers are a revelation, and in a way, a revolution for us. They brilliantly combine the vintage dynamic sensitivity, the upper midrange attack and openness of the traditional AlNiCo speakers, with a tighter bass foundation and a refined top end that suits even modern, higher gain applications.

The 12” version is excellent in a small Combo or Extension and the 10” is truly impressive, sounding nearly as big and powerful as the bigger sibling, with the added immediacy and unique midrange that is an essential element in an iconic 10” speaker.

The 10" Blackbird 40 is the smaller sibling of the 12" Blackbird 40, famous for its exclusive “Reinforced AlNiCo” magnet, and the 1 ¾” (32mm) copper-wound voice coil.

The power rating of this smaller speaker mirrors the larger 12" at 40W, with a very similar efficiency - delivering more than 96dB with ease. The tonal qualities of this speaker are also very close; the 10" Blackbird 40 is distinctively vintage-voiced, with a warm-yet-solid bass range, the classic sparkle and chime that are associated with AlNiCo speakers, and all the immediacy and forwardness that are expected from a high quality 10” speaker.

This speaker ships individually in its own box. 

General Characteristics for 8Ω
Nominal Overall Diameter 259 mm 10 in
Nominal Voice Coil Diameter 32 mm 1.26 in
Magnet Weight 360 g 13 oz
Overall Weight 1.7 kg 3.75 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 - 5.6 Ω
Resonance Frequency: ƒS - 91.8 Hz
Mechanical Q Factor: QMS - 13.05
Electrical Q Factor: QES - 1.27
Total Q Factor: QTS - .94
Mechanical Moving Mass: MMS - 18.5 g
Mechanical Compliance: CMS - 162 µm/N
Force Factor: BxL - 7.68 Wb/m
Equivalent Acoustic Volume: VAS - 25.1 lt.
Diaphragm Area: SD - 330.1 cm2
Voice Coil Inductance @ 1kHz: LE - 0.47 mH

Constructive Characteristics for 8Ω
Magnet: Reinforced Alnico
Voice Coil Winding: Coper
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
Sensitivity@1W,1m: 96.4 dB


The Jensen Blackbird 40W Speakers are featured in our California Tweed™ Series of Amplifiers and Cabinets.


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