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		8Ω	16Ω
Voice Coil DC Resistance	R_E	5.9 Ω	12 Ω
Resonance Frequency	ƒ_S	93.2 Hz	90.1 Hz
Mechanical Q Factor	Q_MS	14.29	13.97
Electrical Q Factor	Q_ES	1.85
Total Q Factor	Q_TS	1.36	1.63
Mechanical Moving Mass	M_MS	28.7 g	27.4 g
Mechanical Compliance	C_MS	102 µm/N	114 µm/N
Force Factor	BxL	8.2 Wb/m	10.06 Wb/m
Equivalent Acoustic Volume	V_AS	34.6 lt.	39 lt.
Diaphragm Area	S_D	490.9 cm²	490.9 cm²
Voice Coil Inductance @ 1kHz	L_E	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	8Ω	16Ω
Rated Power	40 W	40 W
Musical Power	80 W	80 W
Sensitivity@1W,1m	96 dB	95.2 dB

P-A-JP12-40BB

12",

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.

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