P12Q

  • 16Ω
  • 32Ω
General Characteristics for 8Ω
Nominal Overall Diameter306 mm.12 in.
Nominal Voice Coil Diameter32 mm.1.25 in.
Magnet Weight300 g10.50 oz
Overall Weight4.18 lbs
Flux Density0.98 T
Voice Coil Winding Depth0.31 in.
Magnetic Gap Depth0.24 in.
Thiele-Small Parameters for 8Ω
Voice Coil DC ResistanceRE5.60 Ω
Resonance FrequencyƒS90.5 Hz
Mechanical Q FactorQMS11.57
Electrical Q FactorQES2.38
Total Q FactorQTS2.03
Mechanical Moving MassMMS26.8 g
Mechanical ComplianceCMS115 µm/N
Force FactorBxL5.88 Wb/m
Equivalent Acoustic VolumeVAS39.5 lt.
Maximum Linear DisplacementXMAX±1.00 mm
Reference EfficiencynO1.42 %
Diaphragm AreaSD490.9 cm2
Losses Electrical ResistanceRES25.5 Ω
Voice Coil Inductance @ 1kHzLE0.67 mH
Constructive Characteristics for 8Ω
MagnetAlnico
Voice Coil WindingCopper
Voice Coil FormerNomex
Cone MaterialPaper
Surround MaterialIntegrated Paper
Dust Dome MaterialSolid Paper
Basket MaterialPressed Sheet Steel
Surround TreatmentNo
Electrical Characteristics for 8Ω
Nominal Impedance8 Ω
Rated Power40 W
Musical Power80 W
Sensitivity@1W,1m94.4 dB
General Characteristics for 16Ω
Nominal Overall Diameter306 mm.12 in.
Nominal Voice Coil Diameter32 mm.1.25 in.
Magnet Weight300 g10.50 oz
Overall Weight4.18 lbs
Flux Density0.98 T
Voice Coil Winding Depth0.31 in.
Magnetic Gap Depth0.24 in.
Thiele-Small Parameters for 16Ω
Voice Coil DC ResistanceRE12.45 Ω
Resonance FrequencyƒS90.0 Hz
Mechanical Q FactorQMS12.68
Electrical Q FactorQES2.81
Total Q FactorQTS2.30
Mechanical Moving MassMMS25.9 g
Mechanical ComplianceCMS122 µm/N
Force FactorBxL8.05 Wb/m
Equivalent Acoustic VolumeVAS41.2 lt.
Maximum Linear DisplacementXMAX±1.00 mm
Reference EfficiencynO1.02 %
Diaphragm AreaSD490.9 cm2
Losses Electrical ResistanceRES56.3 Ω
Voice Coil Inductance @ 1kHzLE0.60 mH
Constructive Characteristics for 16Ω
MagnetAlnico
Voice Coil WindingCopper
Voice Coil FormerNomex
Cone MaterialPaper
Surround MaterialIntegrated Paper
Dust Dome MaterialSolid Paper
Basket MaterialPressed Sheet Steel
Surround TreatmentNo
Electrical Characteristics for 16Ω
Nominal Impedance16 Ω
Rated Power40 W
Musical Power80 W
Sensitivity@1W,1m96.1 dB
General Characteristics for 32Ω
Nominal Overall Diameter306 mm.12 in.
Nominal Voice Coil Diameter32 mm.1.25 in.
Magnet Weight300 g10.50 oz
Overall Weight4.18 lbs
Flux Density0.98 T
Voice Coil Winding Depth0.31 in.
Magnetic Gap Depth0.24 in.
Thiele-Small Parameters for 32Ω
Voice Coil DC ResistanceRE25.20 Ω
Resonance FrequencyƒS85.6 Hz
Mechanical Q FactorQMS10.94
Electrical Q FactorQES3.33
Total Q FactorQTS2.55
Mechanical Moving MassMMS25.3 g
Mechanical ComplianceCMS138 µm/N
Force FactorBxL10.15 Wb/m
Equivalent Acoustic VolumeVAS46.6 lt.
Maximum Linear DisplacementXMAX±1.00 mm
Reference EfficiencynO0.84 %
Diaphragm AreaSD490.0 cm2
Losses Electrical ResistanceRES82.7 Ω
Voice Coil Inductance @ 1kHzLE1.59 mH
Constructive Characteristics for 32Ω
MagnetAlnico
Voice Coil WindingCopper
Voice Coil FormerNomex
Cone MaterialPaper
Surround MaterialIntegrated Paper
Dust Dome MaterialSolid Paper
Basket MaterialPressed Sheet Steel
Surround TreatmentNo
Electrical Characteristics for 32Ω
Nominal Impedance32 Ω
Rated Power50 W
Musical Power100 W
Sensitivity@1W,1m92.3 dB
12"
,
40 watts
  • Ohms:
  • 16Ω
  • 32Ω

The P12Q has a very warm, mid-focused bite with clear, bright highs. When presented with overdrive distortion the P12Q remains well-balanced.

Lows:Mids:Highs:Overdrive:
LooseFirmSmoothEdgy
Very warm, mid-focused bite with clear bright highs. When presented with overdrive distortion it remains well balanced.
Not recommended for Bass
Sound Samples:
Blues Sound Sample00:49https://www.jensentone.com/sites/jensentone.com/files/sound_samples/p12q_blues_0.mp3
Country Sound Sample00:35https://www.jensentone.com/sites/jensentone.com/files/sound_samples/p12q_country.mp3
Jazz Sound Sample00:23https://www.jensentone.com/sites/jensentone.com/files/sound_samples/p12q_jazz.mp3
Metal Sound Sample00:55https://www.jensentone.com/sites/jensentone.com/files/sound_samples/p12q_metal.mp3
Rock Sound Sample00:43https://www.jensentone.com/sites/jensentone.com/files/sound_samples/p12q_rock.mp3
Having trouble playing our sound samples? Click here to access the files directly.
Frequency Response Charts:
  • 16Ω
  • 32Ω
Hover over the graph to see values. View full size graph.
Hover over the graph to see values. View full size graph.
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Compare this frequency response chart against other speakers

User Reviews

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I recently fitted a Jensen P12Q into my Fender Blues Junior III Red Sparkle FSR and what a huge improvement over the standard speaker, which was a Celestion Greenback G12H which itself is a fine speaker but a bit bright and harsh compared to the P12Q which is much warmer and smoother in tone and breaks up just nice when driven.

I've been playing guitar for nearly 50 years and designing and building speakers systems for musicians for more then 40 years. I bought a new Trace Elliot Bass amp a few years back that had a Jensen MOD12-70. It ended up in my Fender Deluxe, exactly the sound I've been searching for for years. Now I've got another MOD12-70 and P12Q, they make all other speakers sound muddy (no not Mr. Waters). All my amps are being changed to Jensen. If it ain't broke don't fix it.

Great speakers. Liked them so much I picked up a C12N, P12Q and MOD 12-50 to re-do three respective new amps to give them a more vintage tone.

The P12Q is excellent.

Well, finally my P12R fried on my 1955 Fender Deluxe. I had a gig so I put in a new P12Q. The amp has opened up more than I expected. My amp tech commented that he had to place the (57) at fifteen degree off axis to compensate for the increase in volume. I usually carry a Mesa Boogie Studio 22 with a 90 watt Black Shadow as a backup amp, but it doesn't look like I'll need it. You guys Rock!!