EminenceTEXAS HEAT-4
£110.67Fs89 Hz –
Qts0.68 −67%, better
Vas39 L –
BL9.5 T·m +62%, better
Xmax0.8 mm −20%, worse
Sensitivity98 dB +6.5, better
12-inch LF driver · Vintage Alnico series · 32 mm voice coil · 40 W
Jensen P12Q-8 8Ω
8 Ω
No current price
- Fs
- 91Hz
- Xmax
- 1mm
- SPL
- 92dB
- Pe
- 40W
- BL
- 5.9T·m
- Vd
- 49cm³
- Qts
- 2.03
- Vas
- 40L
Manufacturer response and impedance data, with source and trace details below. The left and right arrow keys read every shown curve at a frequency, a twelfth of an octave at a time, or an octave with Shift. Escape clears the reading.
Curve provenanceInspect 2 traces
These plotted lines reproduce manufacturer-provided structured chart data, not Bits measurements or pixel digitizations. How provenance works
- Trace jensen-structured-response/v1
P12Q - 8 ohm – SPL
Frequency response
121 plotted pointsManufacturer structured chart dataSource payload SHA-256 470035feed45…Series P12Q - 8 ohmHigh confidence - Trace jensen-structured-response/v1
P12Q - 8 ohm – free-air impedance
Impedance response
121 plotted pointsManufacturer structured chart dataSource payload SHA-256 470035feed45…Series P12Q - 8 ohmHigh confidence
Jensen P12Q-8 is a 12-inch 8 ohm LF driver rated at 40 W RMS. The validated T/S data includes Fs 91 Hz, Qts 2.03, Vas 39.5 L, Xmax 1 mm, sensitivity 91.5 dB, plus 49 cm³ Vd and 27 EBP. bits tracks vendor pricing, datasheet links, simulator import data, and similar drivers from the same loudspeaker database.
The published T/S values agree with each other
Thiele/Small
- Fs
- 91Hz
- Qts
- 2.03
- Qes
- 3.33
- Qms
- 11.6
- Vas
- 39.5L
- Re
- 5.6Ω
- Le
- 0.67mH
Motor and cone
- BL
- 5.9T·m
- Sd
- 491cm²
- Mms
- 27g
- Xmax
- 1mm
- Vd †
- 49cm³
- Voice coil
- 32mm
- Flux density
- 0.98T
Power and response
- Sensitivity †
- 91.5dB
- Manufacturer sensitivity
- 94.4dB
- Power
- 40W
- Nominal power
- 40W
- Impedance
- 8Ω
- EBP †
- 27 · Leans sealed
Size and mounting
- Diameter
- 306mm
- Weight
- 1.9kg
Other published values
- Cms
- 0.12mm/N
- Power Program
- 80
Sensitivity shows 91.5 dB, calculated from the T/S values. Jensen publishes 94.4 dB, 2.9 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Jensen lists
LF · Primary · 12″
- BL
- 5.9T·m
- Fs
- 91Hz
- Le
- 0.67mH
- Re
- 5.6Ω
- Sd
- 491cm²
- Cms
- 0.12mm/N
- Mms
- 27g
- Qes
- 3.33
- Qms
- 11.6
- Qts
- 2.03
- SPL
- 91.5dB
- Vas
- 39.5L
- Xmax
- 1mm
- Power
- 40W
- Impedance
- 8Ω
- Flux density
- 0.98T
- Sensitivity
- 94.4dB
- Nominal power
- 40W
- Power Program
- 80
- Calculated sensitivity †
- 91.5dB
- Manufacturer sensitivity
- 94.4dB
- Voice coil
- 32mm
- Weight
- 1.9kg
- Diameter
- 306mm
02
Compare
Same-size drivers, compared with the P12Q-8. Clear differences are green when better and red when worse.
This driverP12Q-8
Best price
–
Fs
91 Hz
Qts
2.03
Vas
39.5 L
BL
5.9 T·m
Xmax
1 mm
Sensitivity
91.5 dB
Power
40 W
JensenP12R-8
No current priceFs80 Hz −12%, better
Qts2.10 +3%
Vas54 L +37%, worse
BL5.5 T·m −6%
Xmax1 mm –
Sensitivity92.2 dB +0.7
JensenC12R-8
No current priceFs88 Hz –
Qts2.47 +22%, worse
Vas37.5 L −5%
BL6.2 T·m +6%
Xmax0.8 mm −20%, worse
Sensitivity91.6 dB –
JensenC12Q-8
No current priceFs88 Hz −3%
Qts2.23 +10%
Vas38 L −4%
BL6.0 T·m –
Xmax1.5 mm +50%, better
Sensitivity92.2 dB +0.7
JensenP12Q-16
No current priceFs90 Hz –
Qts2.30 +13%, worse
Vas41.2 L +4%
BL8.1 T·m +37%, better
Xmax1 mm –
Sensitivity96.1 dB +4.6, better
JensenC12-75NH-16
No current priceFs88 Hz –
Qts0.72 −65%, better
Vas40 L –
BL15.6 T·m +165%, better
Xmax1 mm –
Sensitivity98.9 dB +7.4, better
JensenMOD12-130-8
No current priceFs86 Hz −5%
Qts0.49 −76%, better
Vas38.4 L –
BL15.2 T·m +158%, better
Xmax1 mm –
Sensitivity97 dB +5.5, better
JensenC12K-2-16
No current priceFs85 Hz −6%
Qts0.59 −71%, better
Vas42.1 L +7%
BL17.2 T·m +192%, better
Xmax1 mm –
Sensitivity99.5 dB +8, better
JensenP12N-16
No current priceFs91 Hz –
Qts0.84 −59%, better
Vas42.2 L +7%
BL13.7 T·m +133%, better
Xmax1 mm –
Sensitivity97.8 dB +6.3, better
JensenP12N-NB-16
No current priceFs91 Hz –
Qts0.84 −59%, better
Vas42.2 L +7%
BL13.7 T·m +133%, better
Xmax1 mm –
Sensitivity97.8 dB +6.3, better
JensenC12-75NH-8
No current priceFs83 Hz −8%
Qts0.64 −68%, better
Vas42.4 L +7%
BL11.8 T·m +101%, better
Xmax1 mm –
Sensitivity97.1 dB +5.6, better
JensenC12K-2-8
No current priceFs79 Hz −13%, better
Qts0.47 −77%, better
Vas43.1 L +9%
BL14.7 T·m +151%, better
Xmax1 mm –
Sensitivity97.4 dB +5.9, better
JensenJC12-70EL-16
No current priceFs93 Hz –
Qts0.88 −57%, better
Vas35.3 L −11%, better
BL14.6 T·m +148%, better
Xmax1 mm –
Sensitivity98.1 dB +6.6, better
JensenMOD12-35-8
No current priceFs74 Hz −19%, better
Qts1.54 −24%, better
Vas54.4 L +38%, worse
BL7.3 T·m +24%, better
Xmax1 mm –
Sensitivity92.1 dB +0.6
JensenP12N-8
No current priceFs90 Hz –
Qts0.77 −62%, better
Vas34.6 L −12%, better
BL10.6 T·m +81%, better
Xmax1 mm –
Sensitivity96.1 dB +4.6, better
JensenP12N-NB-8
No current priceFs90 Hz –
Qts0.77 −62%, better
Vas34.6 L −12%, better
BL10.6 T·m +81%, better
Xmax1 mm –
Sensitivity96.1 dB +4.6, better
JensenP12Q-32
No current priceFs86 Hz −5%
Qts2.55 +26%, worse
Vas46.6 L +18%, worse
BL10.2 T·m +73%, better
Xmax1 mm –
Sensitivity92.3 dB +0.8
JensenJP12-100BB-8
No current priceFs95 Hz +5%
Qts0.92 −55%, better
Vas32.4 L −18%, better
BL10.3 T·m +76%, better
Xmax1 mm –
Sensitivity95.4 dB +3.9, better
JensenJC12-70EL-8
No current priceFs95 Hz +5%
Qts0.67 −67%, better
Vas32 L −19%, better
BL12.7 T·m +116%, better
Xmax1 mm –
Sensitivity96.7 dB +5.2, better
JensenJN12-100TR-4
No current priceFs77 Hz −15%, better
Qts0.58 −71%, better
Vas47.2 L +19%, worse
BL9.0 T·m +53%, better
Xmax1 mm –
Sensitivity96.6 dB +5.1, better
JensenC12Q-16
No current priceFs86 Hz −5%
Qts1.99 –
Vas46.3 L +17%, worse
BL8.2 T·m +39%, better
Xmax1.5 mm +50%, better
Sensitivity93.9 dB +2.4, better
JensenMOD12-35-16
No current priceFs90 Hz –
Qts1.92 −5%
Vas34.8 L −12%, better
BL10.0 T·m +70%, better
Xmax1.5 mm +50%, better
Sensitivity94 dB +2.5, better
JensenJP12-100BB-16
No current priceFs104 Hz +14%, worse
Qts1.19 −41%, better
Vas29.4 L −26%, better
BL12.8 T·m +117%, better
Xmax1 mm –
Sensitivity97.1 dB +5.6, better
JensenJC12-50FA-8
No current priceFs107 Hz +18%, worse
Qts0.86 −58%, better
Vas28.8 L −27%, better
BL10.8 T·m +84%, better
Xmax1 mm –
Sensitivity95.9 dB +4.4, better
JensenC12N-16
No current priceFs110 Hz +22%, worse
Qts1.06 −48%, better
Vas28 L −29%, better
BL13.3 T·m +127%, better
Xmax1 mm –
Sensitivity97.5 dB +6, better
JensenP12R-16
No current priceFs77 Hz −15%, better
Qts2.20 +8%
Vas72.6 L +84%, worse
BL6.7 T·m +14%, better
Xmax0.75 mm −25%, worse
Sensitivity94 dB +2.5, better
JensenJN12-100TR-16
No current priceFs70 Hz −23%, better
Qts0.70 −66%, better
Vas55.7 L +41%, worse
BL15.7 T·m +167%, better
Xmax1 mm –
Sensitivity97 dB +5.5, better
JensenJN12-100TRS-16
No current priceFs70 Hz −23%, better
Qts0.70 −66%, better
Vas55.7 L +41%, worse
BL15.7 T·m +167%, better
Xmax1 mm –
Sensitivity97 dB +5.5, better
JensenJN12-100TR-8
No current priceFs72 Hz −20%, better
Qts0.52 −74%, better
Vas55.9 L +42%, worse
BL12.9 T·m +120%, better
Xmax1 mm –
Sensitivity98.5 dB +7, better
JensenJN12-100TRS-8
No current priceFs72 Hz −20%, better
Qts0.52 −74%, better
Vas55.9 L +42%, worse
BL12.9 T·m +120%, better
Xmax1 mm –
Sensitivity96.5 dB +5, better
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
No current price found. Pricing may appear after the next vendor refresh.