P12Q

32Ω
16Ω

General Characteristics for 8Ω

Nominal Overall Diameter
306 mm
12 in
Nominal Voice Coil Diameter
32 mm
1 in
Magnet Weight
300 g
11 oz
Overall Weight
1.9 kg
4.19 lbs
Flux Density
0.98 T
Voice Coil Winding Depth
8 mm
0.31 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
90.5 Hz
Mechanical Q Factor
QMS
11.57
Electrical Q Factor
QES
2.38
Total Q Factor
QTS
2.03
Mechanical Moving Mass
MMS
26.8 g
Mechanical Compliance
CMS
115 µm/N
Force Factor
BxL
5.88 Wb/m
Equivalent Acoustic Volume
VAS
39.5 lt.
Maximum Linear Displacement
XMAX
± 1 mm
Reference Efficiency
nO
1.42 %
Diaphragm Area
SD
490.9 cm2
Losses Electrical Resistance
RES
25.5 Ω
Voice Coil Inductance @ 1kHz
LE
0.67 mH

Constructive Characteristics for 8Ω

Magnet
Alnico
Voice Coil Winding
Copper
Voice Coil Former
Nomex
Cone Material
Paper
Surround Material
Integrated Paper
Dust Dome Material
Solid Paper
Basket Material
Pressed Sheet Steel
Surround Treatment
No

Electrical Characteristics for 8Ω

Nominal Impedance
8 Ω
Rated Power
40 W
Musical Power
80 W
Sensitivity@1W,1m
94.4 dB

General Characteristics for 16Ω

Nominal Overall Diameter
306 mm
12 in
Nominal Voice Coil Diameter
32 mm
1 in
Magnet Weight
300 g
11 oz
Overall Weight
1.9 kg
4.19 lbs
Flux Density
0.98 T
Voice Coil Winding Depth
8 mm
0.31 in
Magnetic Gap Depth
6 mm
0.24 in

Thiele-Small Parameters for 16Ω

Voice Coil DC Resistance
RE
12.45 Ω
Resonance Frequency
ƒS
90 Hz
Mechanical Q Factor
QMS
12.68
Electrical Q Factor
QES
2.81
Total Q Factor
QTS
2.3
Mechanical Moving Mass
MMS
25.9 g
Mechanical Compliance
CMS
122 µm/N
Force Factor
BxL
8.05 Wb/m
Equivalent Acoustic Volume
VAS
41.2 lt.
Maximum Linear Displacement
XMAX
± 1 mm
Reference Efficiency
nO
1.02 %
Diaphragm Area
SD
490.9 cm2
Losses Electrical Resistance
RES
56.3 Ω
Voice Coil Inductance @ 1kHz
LE
0.6 mH

Constructive Characteristics for 16Ω

Magnet
Alnico
Voice Coil Winding
Copper
Voice Coil Former
Nomex
Cone Material
Paper
Surround Material
Integrated Paper
Dust Dome Material
Solid Paper
Basket Material
Pressed Sheet Steel
Surround Treatment
No

Electrical Characteristics for 16Ω

Nominal Impedance
16 Ω
Rated Power
40 W
Musical Power
80 W
Sensitivity@1W,1m
96.1 dB

General Characteristics for 32Ω

Nominal Overall Diameter
306 mm
12 in
Nominal Voice Coil Diameter
32 mm
1 in
Magnet Weight
300 g
11 oz
Overall Weight
1.9 kg
4.19 lbs
Flux Density
0.98 T
Voice Coil Winding Depth
8 mm
0.31 in
Magnetic Gap Depth
6 mm
0.24 in

Thiele-Small Parameters for 32Ω

Voice Coil DC Resistance
RE
25.2 Ω
Resonance Frequency
ƒS
85.6 Hz
Mechanical Q Factor
QMS
10.94
Electrical Q Factor
QES
3.33
Total Q Factor
QTS
2.55
Mechanical Moving Mass
MMS
25.3 g
Mechanical Compliance
CMS
138 µm/N
Force Factor
BxL
10.15 Wb/m
Equivalent Acoustic Volume
VAS
46.6 lt.
Maximum Linear Displacement
XMAX
± 1 mm
Reference Efficiency
nO
0.84 %
Diaphragm Area
SD
490 cm2
Losses Electrical Resistance
RES
82.7 Ω
Voice Coil Inductance @ 1kHz
LE
1.59 mH

Constructive Characteristics for 32Ω

Magnet
Alnico
Voice Coil Winding
Copper
Voice Coil Former
Nomex
Cone Material
Paper
Surround Material
Integrated Paper
Dust Dome Material
Solid Paper
Basket Material
Pressed Sheet Steel
Surround Treatment
No

Electrical Characteristics for 32Ω

Nominal Impedance
32 Ω
Rated Power
50 W
Musical Power
100 W
Sensitivity@1W,1m
92.3 dB
P12Q
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
Loose
Mids
Firm
Highs
Smooth
Overdrive
Edgy
Guitarist Description
Very warm, mid-focused bite with clear bright highs. When presented with overdrive distortion it remains well balanced.
Bassist Description
Not recommended for Bass
Specification Sheet
Product Dimensions
Frequency Response Charts
32Ω
16Ω
User Reviews

The P12Q is excellent.

Walter in Somerset, MA

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.

Reinhard in Gehrden, Germany

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!!

JS in Highland Park, IL

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.

Denis in Lancashire, UK

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.

Brian in Greenwood, IN