PRIVATE JACK™
pri'vate jack n. namesake of the famous British canine and one of the most recognized British tones for guitar
Coloration : Thick and smooth, with lots of mids and extended highs. Very well balanced speaker. Classic British flavor
Genre : Classic British tone for Blues, Indie, Jazz

Specification
Nominal Basket Diameter: 12", 304.8mm
Nominal Impedance*: 16 ohms
Power Rating**: 50W
Resonance: 96Hz
Usable Frequency Range***: 70Hz-5kHz
Sensitivity: 101
Magnet Weight: 38 oz.
Gap Height: 0.312", 7.92mm
Voice Coil Diameter: 1.75", 44.5mm

Thiele & Small Parameters
Resonant Frequency (fs): 96Hz
DC Resistance (Re): 7.01
Coil Inductance (Le): 0.49mH
Mechanical Q (Qms): 18.19
Electromagnetic Q (Qes): 0.72
Total Q (Qts): 0.69
Compliance Equivalent Volume (Vas): 33.7 liters / 1.2 cu. ft.
Peak Diaphragm Displacement Volume (Vd): 64cc
Mechanical Compliance of Suspension (Cms): 0.09mm/N
BL Product (BL): 13.5 T-M
Diaphragm Mass inc. Airload (Mms): 31 grams
Efficiency Bandwidth Product (EBP): 134
Maximum Linear Excursion (Xmax): 1.2mm
Surface Area of Cone (Sd): 519.5 cm2
Maximum Mechanical Limit (Xlim)

Mounting Information
Recommended Enclosure Volume
Sealed Acceptable
Vented Acceptable
Overall Diameter: 12.02", 305.3mm
Baffle Hole Diameter: 10.97", 278.6mm
Front Sealing Gasket: standard fitted as
Rear Sealing Gasket: standard fitted as
Mounting Holes Diameter: 0.25", 6.4mm
Mounting Holes: B.C.D. 11.63", 295.4mm
Depth: 5.1", 130mm
Net Weight: 8 lbs., 3.6 kg
Shipping Weight: 9.8 lbs., 4.5 kg

Materials of Construction
Copper voice coil
Paper former
Ferrite magnet
Non-vented core
Pressed steel basket
Paper Cone
Paper cone edge
Zurette dust cap