TT Diffusor 12" - Standard

Vintage American AlNiCo Guitar Speaker

Jupiter 8SA is an 8" seamed cone speaker with a Small Alnico Magnet, an upgrade replacement for Jensen P8R.

• Small Ceramic Magnet
• Power: 25 W
• Sensitivity: 94,5dB
• Weight: 1,2 kg
• VC Diameter: 1″
• 8 Ohm
• Kapton Coil

• Nominal diameter 381mm / 15in
• Power rating 100W
• Rated impedance 8Ω or 16Ω
• Sensitivity 99dB
• Chassis type Pressed steel
• Magnet type Ceramic
• Magnet weight 1.42kg / 50oz
• Voice coil diameter 2in / 50mm
• Voice coil material Round copper
• Frequency range 65-4000Hz
• Resonance frequency, Fs 85Hz
• DC resistance, Re 6.4Ω

• Cut-out diameter 351mm / 13.8in
• Diameter 385mm / 15.2in
• Magnet structure diameter 156mm / 6.1in
• Mounting hole dimensions 9.2x7.9mm / 0.36x0.24in
• Mounting hole PCD 369mm / 14.6in
• Number of mounting holes 8
• Chassis depth (inc gasket) 117mm / 4.58in
• Magnet depth 36mm / 1.42in
• Overall depth 152.9mm / 6.0in
• Unit weight 4.8kg / 10.6lb

CH Series speakers build on the legendary heritage of JENSEN® Vintage Models. They are built in high volumes, allowing great cost efficiency. State-of-the-art spekers manufacturing, careful parts selection and detailed quality control combine to produce the affordable JENSEN® series

 Technical Details:

• Size: 10"
• Impedance: 8 Ohm
• Rated Power (RMS): 35 W
• Sensitivity @ 1 W, 1 m:    94,1 dB
• Resonance Frequency  fs: 107 Hz

Files:

• Datasheet

• Nominal diameter 381mm / 15"
• Power rating 100W
• Rated impedance 8Ω or 16Ω
• Sensitivity 99dB
• Chassis type Pressed steel
• Magnet type Ceramic
• Magnet weight 1.42kg / 50oz
• Voice coil diameter 2in / 50mm
• Voice coil material Round copper
• Frequency range 65-4000Hz
• Resonance frequency, Fs 85Hz
• DC resistance, Re 6.4Ω

• Cut-out diameter 351mm / 13.8in
• Diameter 385mm / 15.2in
• Magnet structure diameter 156mm / 6.1in
• Mounting hole dimensions 9.2x7.9mm / 0.36x0.24in
• Mounting hole PCD 369mm / 14.6in
• Number of mounting holes 8
• Chassis depth (inc gasket) 117mm / 4.58in
• Magnet depth 36mm / 1.42in
• Overall depth 152.9mm / 6.0in
• Unit weight 4.8kg / 10.6lb

Warm low end, relaxed mids and rounded highs. Responds to overdrive distortion with easy breakup and punch.

Specifications

• Nominal Diameter: 307 mm (12")
• Nominal Impedance: 8 Ω
• Rated Power AES (1): 65 W
• Continuous Program Power (2): 130 W
• Sensitivity @ 1W/1m: 97.0 dB
• Voice Coil Diameter: 44 mm
• Voice Coil Winding Depth: 11 mm
• Magnetic Gap Depth: 8 mm
• Flux Density: 1.04 T
• Magnet Weight: 160 g
• Net Weight: 2.2 kg

Thiele & Small Parameters

• Re 6.16 Ω
• Fs 83.2 Hz
• Qms 11.18
• Qts 0.95
• Mms 28.7 g
• Bxl 9.41 Tm
• Cms 128 μm/N
• Sd 490.9 cm2
• Vas 43.5 l
• Le (1kHz) 0.58 mH

• Nominal diameter 305mm / 12in
• Power rating 15W
• Rated impedance 8Ω or 15Ω
• Sensitivity 100dB
• Chassis type Pressed steel
• Magnet type Alnico
• Voice coil diameter 1.75in / 44mm
• Voice coil material Round copper
• Frequency range 75-5000Hz
• Resonance frequency, Fs 75Hz
• DC resistance, Re 6.4Ω or 11.8Ω

• Cut-out diameter 283mm / 11.1in
• Diameter 309mm / 12.2in
• Magnet structure diameter 128mm / 5.0in
• Mounting hole dimensions 7.9mm / 0.31in Ø
• Mounting hole PCD 297mm / 11.7in
• Number of mounting holes 4
• Chassis depth (inc gasket) 92mm / 3.63in
• Magnet depth 73mm / 2.87in
• Overall depth 165mm / 6.5in
• Unit weight 4.2kg / 9.3lb

The "Living legends" of Rock and Roll guitar sounds are back! Original designs of the late 40's and early 50's have been recreated using many of the original parts suppliers. Highly efficient AlNiCo magnets and seamed paper cones are the foundation for the famous JENSEN® Sound. JENSEN® "P" Series Vintage AlNiCo magnet speakers represent an important contribution to the paste, present and, no doubt, the future of rock and roll music. They are loved by generations of guitarists around the world.

 Technical Details:

• Size: 12"
• Impedance: 16 Ohm
• Rated Power (RMS): 40 W
• Sensitivity @ 1 W, 1 m:    95 dB
• Resonance Frequency  fs: 90,4 Hz
• Bell: No Bell

Files:

• Datasheet

• Nominal diameter 305mm / 12in
• Power rating 150W
• Rated impedance 8Ω or 16Ω
• Sensitivity 100dB
• Chassis type Pressed steel
• Magnet type Ceramic
• Magnet weight 1.42kg / 50oz
• Voice coil diameter 2in / 50mm
• Voice coil material Round copper
• Frequency range 70-5000Hz
• Resonance frequency, Fs 75Hz
• DC resistance, Re 6.45Ω & 12.54Ω

• Cut-out diameter 283mm / 11.1in
• Diameter 309mm / 12.2in
• Magnet structure diameter 168mm / 6.6in
• Mounting hole dimensions 7.9mm / 0.31in Ø
• Mounting hole PCD 297mm / 11.7in
• Number of mounting holes 8
• Chassis depth (inc gasket) 95mm / 3.71in
• Magnet depth 43mm / 1.69”in
• Overall depth 138mm / 5.4in
• Unit weight 4.7kg / 10.4lb

CERAMIC Vintage

The JENSEN® "C" series speakers were developed because the world's supply of cobal (Co in AlNiCo) slump, making this raw material more expensive. While ceramic magnets are larger in size than comparable AlNiCo magnets of the same gauss strenght, their cost is lower. "C" series JENSEN® speakers use same cones and voice coils comparable to our AlNiCo series speakers, thus providing a similar tone but at a reduced price.

Technical Details:    

• Size: 12"
• Impedance: 8 Ohm
• Rated Power (RMS): 100 W
• Sensitivity @ 1 W, 1 m:    99,1 dB
• Resonance Frequency fs: 104 Hz

Files:

• Datasheet

The "Living legends" of Rock and Roll guitar sounds are back! Original designs of the late 40's and early 50's have been recreated using many of the original parts suppliers. Highly efficient AlNiCo magnets and seamed paper cones are the foundation for the famous JENSEN® Sound. JENSEN® "P" Series Vintage AlNiCo magnet speakers represent an important contribution to the paste, present and, no doubt, the future of rock and roll music. They are loved by generations of guitarists around the world.

 Technical Details:

• Size: 12"
• Impedance: 8 Ohm
• Rated Power (RMS): 40 W
• Sensitivity @ 1 W, 1 m:    95 dB
• Resonance Frequency  fs: 90,4 Hz
• Bell: No Bell

Files:

• Datasheet

CERAMIC Vintage

The JENSEN® "C" series speakers were developed because the world's supply of cobal (Co in AlNiCo) slump, making this raw material more expensive. While ceramic magnets are larger in size than comparable AlNiCo magnets of the same gauss strenght, their cost is lower. "C" series JENSEN® speakers use same cones and voice coils comparable to our AlNiCo series speakers, thus providing a similar tone but at a reduced price.

Technical Details:    

• Size: 10"
• Impedance: 8 Ohm
• Rated Power (RMS): 25 W
• Sensitivity @ 1 W, 1 m:    94,7 dB
• Resonance Frequency  fs: 96 Hz

Files:

• Datasheet

The "Living legends" of Rock and Roll guitar sounds are back! Original designs of the late 40's and early 50's have been recreated using many of the original parts suppliers. Highly efficient AlNiCo magnets and seamed paper cones are the foundation for the famous JENSEN® Sound. JENSEN® "P" Series Vintage AlNiCo magnet speakers represent an important contribution to the paste, present and, no doubt, the future of rock and roll music. They are loved by generations of guitarists around the world.

 Technical Details:

• Size: 8"
• Impedance: 4 Ohm
• Rated Power (RMS): 25 W
• Sensitivity @ 1 W, 1 m:    92,5 dB
• Resonance Frequency  fs: 130 Hz
• Bell: No Bell

Files:

• Datasheet

• Size 12" Speaker
• Voice Coil 1.5" Voice Coil
• Magnet 30 oz Ceramic Magnet
• Power Handling 50 watts
• Efficiency 99 dB
• Voice Coil Type Nomex voice coil
• Weight 5.73lbs

• Datasheet

Speaker Break-In / Agin Service for Guitar Speakers.
Corresponds to a continuous operation of 24 hours.
Many new and unused loudspeakers sound harsh and must be used for a certain time to develop their sound. This ageing process can be accelerates with this service which "wears" different parts of the speaker, so it will sound softer and smoother, in particular the top end.

• Length: 100 mm
• Width: 2,5 mm
• color: black
• Set of 100 pcs

• +/- 5% tolerance
• -55° C to 240° C operating range
• Max 500 V
• Excellent flame retardant coating
• Different manufacturers

You want to mount a 10" speaker but the cutout is made for a 12" Speaker ? No problem with this 12/10 Inch converter !

• Material 6 mm Birch Plywood
• Screws, nuts and washers included

Universal size for 10" speakers
Dome diameter:  80 mm

As the frequency increases, the radiation of a loudspeaker is increasingly focused on its center. If the listener is in this beam, the sound is extremely harsh and biting; if one moves to the side of it, the sound becomes significantly darker and treble components are partially missing.
To reduce this behavior, a diffuser is used. This sits directly in the beam of the speaker and deflects the high frequencies very strongly, it breaks the "beam". This makes the sound much fuller and more balanced.

Hear the Diffusor in action on ->YouTube (made by one of our customers, Thanks !)

Electrical Characteristics

• Heater voltage (Uf): 6.3V or 12.6V
• Heater current (If): 300mA at 6.3V, 150mA at 12.6V
• Anode voltage (Ua): Maximum 300V
• Grid voltages (Ug1): -2V (typical)
• Grid voltages: -50V to 0V
• Anode current (Ia): 1.2mA (typical)
• Anode power dissipation: Maximum 1W per triode
• Anode resistance (ra): 62.5kΩ
• Amplification factor (μ): 100
• Transconductance (S): 1.6mA/V
• Input capacitance (Cin): 1.6pF
• Output capacitance (Cout): 1.6pF

Mechanical Characteristics

• Socket: B9A (Noval)
• Number of pins: 9

Pin Configuration

• 1 Anode (Triode 1)
• 2 Grid (Triode 1)
• 3 Cathode (Triode 1)
• 4 Heater (f)
• 5 Heater (f)
• 6 Anode (Triode 2)
• 7 Grid (Triode 2)
• 8 Cathode (Triode 2)
• 9 Center Heater (f)

Application Notes

• Heater operation: The tube can be operated with 6.3V or 12.6V, depending on the circuit design.
• Grid resistors: It is recommended to use grid resistors of at least 1MΩ to ensure stable functionality.
• Coupling capacitors: Capacitors with low capacitance (typically 0.1µF) are recommended to minimize high-frequency interference.