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Speaker - Jensen® Jets, 12", Blackbird, 40W
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.
For more information about our Jensen® speakers, see our tech corner article on Jensen Speakers.
SKU:
P-A-JP12-40BBX
Item ID:
045036
Brand:
JensenJensen Jets
Magnet Type:
Type:
RoHS Compliant
| Impedance | Our Part Number | UPC/EAN |
|---|---|---|
| 8 Ω | P-A-JP12-40BB8 | 841358115936 |
| 16 Ω | P-A-JP12-40BB16 | 841358115943 |
| Basket Material | Pressed Sheet Steel | ||
| Cone Material | Paper | ||
| Diaphragm Area | 490.9 cm^2 | ||
| Electrical Q Factor | 8 Ω version | P-A-JP12-40BB8 | 1.5 |
| 16 Ω version | P-A-JP12-40BB16 | 1.85 | |
| Equivalent Acoustic Volume | 8 Ω version | P-A-JP12-40BB8 | 34.6 lt. |
| 16 Ω version | P-A-JP12-40BB16 | 39 lt. | |
| Flux Density | 1.28 T | ||
| Force Factor | 8 Ω version | P-A-JP12-40BB8 | 8.2 Wb/m |
| 16 Ω version | P-A-JP12-40BB16 | 10.06 Wb/m | |
| Magnet | Reinforced Alnico | ||
| Magnet Weight | 11 oz. | ||
| Magnetic Gap Depth | 0.24 in. | ||
| Mechanical Compliance | 8 Ω version | P-A-JP12-40BB8 | 102 µm/N |
| 16 Ω version | P-A-JP12-40BB16 | 114 µm/N | |
| Mechanical Moving Mass | 8 Ω version | P-A-JP12-40BB8 | 28.7 g |
| 16 Ω version | P-A-JP12-40BB16 | 27.4 g | |
| Mechanical Q Factor | 8 Ω version | P-A-JP12-40BB8 | 14.29 |
| 16 Ω version | P-A-JP12-40BB16 | 13.97 | |
| Musical Power | 80 W | ||
| Nominal Impedance | 8 Ω version | P-A-JP12-40BB8 | 8 Ω |
| 16 Ω version | P-A-JP12-40BB16 | 16 Ω | |
| Nominal Overall Diameter | 12 in. | ||
| Nominal Voice Coil Diameter | 1.26 in. | ||
| Rated Power | 40 W | ||
| Resonance Frequency | 8 Ω version | P-A-JP12-40BB8 | 93.2 Hz |
| 16 Ω version | P-A-JP12-40BB16 | 90.1 Hz | |
| Sensitivity @ 1W, 1m | 8 Ω version | P-A-JP12-40BB8 | 96 dB |
| 16 Ω version | P-A-JP12-40BB16 | 95.2 dB | |
| Surround Material | Integrated Paper | ||
| Surround Treatment | Yes | ||
| Total Q Factor | 8 Ω version | P-A-JP12-40BB8 | 1.36 |
| 16 Ω version | P-A-JP12-40BB16 | 1.63 | |
| Voice Coil DC Resistance | 8 Ω version | P-A-JP12-40BB8 | 5.9 Ω |
| 16 Ω version | P-A-JP12-40BB16 | 12 Ω | |
| Voice Coil Former | Kapton | ||
| Voice Coil Inductance @ 1kHz | 8 Ω version | P-A-JP12-40BB8 | 0.4 mH |
| 16 Ω version | P-A-JP12-40BB16 | 0.72 mH | |
| Voice Coil Winding | Copper | ||
| Voice Coil Winding Depth | 0.35 in. | ||
| Packaging Dimensions | 12.598 in. × 12.598 in. × 7.874 in. | ||
| Weight (Packaging) | 5.9701 lbs. | ||
| P-A-JP12-40BB8 - 8 Ω version | Basket Material | Pressed Sheet Steel |
| Cone Material | Paper | |
| Diaphragm Area | 490.9 cm^2 | |
| Electrical Q Factor | 1.5 | |
| Equivalent Acoustic Volume | 34.6 lt. | |
| Flux Density | 1.28 T | |
| Force Factor | 8.2 Wb/m | |
| Magnet | Reinforced Alnico | |
| Magnet Weight | 11 oz. | |
| Magnetic Gap Depth | 0.24 in. | |
| Mechanical Compliance | 102 µm/N | |
| Mechanical Moving Mass | 28.7 g | |
| Mechanical Q Factor | 14.29 | |
| Musical Power | 80 W | |
| Nominal Impedance | 8 Ω | |
| Nominal Overall Diameter | 12 in. | |
| Nominal Voice Coil Diameter | 1.26 in. | |
| Rated Power | 40 W | |
| Resonance Frequency | 93.2 Hz | |
| Sensitivity @ 1W, 1m | 96 dB | |
| Surround Material | Integrated Paper | |
| Surround Treatment | Yes | |
| Total Q Factor | 1.36 | |
| Voice Coil DC Resistance | 5.9 Ω | |
| Voice Coil Former | Kapton | |
| Voice Coil Inductance @ 1kHz | 0.4 mH | |
| Voice Coil Winding | Copper | |
| Voice Coil Winding Depth | 0.35 in. | |
| P-A-JP12-40BB16 - 16 Ω version | Basket Material | Pressed Sheet Steel |
| Cone Material | Paper | |
| Diaphragm Area | 490.9 cm^2 | |
| Electrical Q Factor | 1.85 | |
| Equivalent Acoustic Volume | 39 lt. | |
| Flux Density | 1.28 T | |
| Force Factor | 10.06 Wb/m | |
| Magnet | Reinforced Alnico | |
| Magnet Weight | 11 oz. | |
| Magnetic Gap Depth | 0.24 in. | |
| Mechanical Compliance | 114 µm/N | |
| Mechanical Moving Mass | 27.4 g | |
| Mechanical Q Factor | 13.97 | |
| Musical Power | 80 W | |
| Nominal Impedance | 16 Ω | |
| Nominal Overall Diameter | 12 in. | |
| Nominal Voice Coil Diameter | 1.26 in. | |
| Rated Power | 40 W | |
| Resonance Frequency | 90.1 Hz | |
| Sensitivity @ 1W, 1m | 95.2 dB | |
| Surround Material | Integrated Paper | |
| Surround Treatment | Yes | |
| Total Q Factor | 1.63 | |
| Voice Coil DC Resistance | 12 Ω | |
| Voice Coil Former | Kapton | |
| Voice Coil Inductance @ 1kHz | 0.72 mH | |
| Voice Coil Winding | Copper | |
| Voice Coil Winding Depth | 0.35 in. |
 Specification Sheet | All Models |
 Breakup Sound Sample | All Models |
| Characteristic Sound Sample | All Models |
| Modern Clean Sound Sample | All Models |
| Crunch Sound Sample | All Models |
| Rock Chords Sound Sample | All Models |
| Clean HB MB Blues | All Models |
| Clean HB MB Chords | All Models |
| Clean Stratocaster FP Chords | All Models |
| Crunch Stratocaster FP Jimi | All Models |
| High Gain HB THD Univalve | All Models |
| Mid Gain HB MB Lead | All Models |
| Mid Gain Stratocaster FP Lead | All Models |
| Rock HB THD Univalve | All Models |
My Project Lists
Specifications, Files, and Documents
Sound Samples:
Breakup Sound Sample00:32https://www.amplifiedparts.com/sites/default/files/associated_files/p-a-jp12-40b_breakup.mp3
Characteristic Sound Sample00:39https://www.amplifiedparts.com/sites/default/files/associated_files/p-a-jp12-40b_characteristic-sound.mp3
Clean HB MB Blues00:49https://www.amplifiedparts.com/sites/default/files/associated_files/p-a-jp1240bb-clean_hb_mb_blues_0.mp3
Clean HB MB Chords00:44https://www.amplifiedparts.com/sites/default/files/associated_files/p-a-jp1240bb-clean_hb_mb_chords_0.mp3
Clean Stratocaster FP Chords00:30https://www.amplifiedparts.com/sites/default/files/associated_files/p-a-jp1240bb-clean_strat_fp_chords_0.mp3
Crunch Sound Sample00:29https://www.amplifiedparts.com/sites/default/files/associated_files/p-a-jp12-40b_crunch.mp3
Crunch Stratocaster FP Jimi00:37https://www.amplifiedparts.com/sites/default/files/associated_files/p-a-jp1240bb-crunch_strat_fp_jimi_0.mp3
High Gain HB THD Univalve01:47https://www.amplifiedparts.com/sites/default/files/associated_files/p-a-jp1240bb-higain_hb_thd_0.mp3
Mid Gain HB MB Lead00:24https://www.amplifiedparts.com/sites/default/files/associated_files/p-a-jp1240bb-mid_gain_hb_mb_lead_0.mp3
Mid Gain Stratocaster FP Lead00:46https://www.amplifiedparts.com/sites/default/files/associated_files/p-a-jp1240bb-mid_gain_strat_fp_lead_0.mp3
Modern Clean Sound Sample00:34https://www.amplifiedparts.com/sites/default/files/associated_files/p-a-jp12-40b_clean.mp3
Rock Chords Sound Sample00:30https://www.amplifiedparts.com/sites/default/files/associated_files/p-a-jp12-40b_rock-chords.mp3
Rock HB THD Univalve00:46https://www.amplifiedparts.com/sites/default/files/associated_files/p-a-jp1240bb-rock_hb_thd_0.mp3
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Questions? Contact us at [email protected], or give us a call at 480-296-0890
Product Reviews
I inherited a 1960 Fender Tremolux amp that was mostly original except the speaker, which needed to be replaced. I borrowed a 2011 Jensen P12Q and the amp sounded pretty good; better than I expected. I would think that it would be possible to replicate the old P12Q and it looks like they did so, but the Blackbird 40 to me is an upgrade of the original design. It is definitely louder, has more bass, and just sounds better. You would think that the original design could be improved on and it seems that it has!