The Sovereign Pro 12-500 is intended for use in two-way ported enclosures. The driver features a rugged die cast chassis combined with long throw motor system and high linearity suspension allowing solid bass reproduction at high power levels. The driver exhibits a smooth frequency response that delivers a balanced tonal characteristic when properly matched with the appropriate high-frequency device. The Sovereign Pro 12-500 is intended for use in ported enclosures with volumes of 35 to 75 Litres and features a 3 inch 'sandwich' inside and outside windings voice coil capable of delivering 500 watts power. The driver has an average sensitivity of 97.5 dB across its working band width.
Please enquire about alternative impedances.
A.E.S. power handling test. Pink noise bandpass filtered at 12 dB per octave with cutoff frequencies of 45 Hz and 450 Hz. Driver mounted in free air, test signal applied at rated power for two hours.
Please note that the frequency response measurements are supplied for comparison only and are not a measure of the low frequency performance which may be achieved in a fully optimised system.
97.5 dB Sensitivity (1W/1m).
Deep bass and well balanced tonal character with extended frequency output.
High linearity suspension and long-throw motor system.
UK manufactured cone with optimised pulp offering increased strength, durability and performance.
3-inch Inside/ outside windings CCAW voice coil.
Electro Acoustic Specifications
Nominal Chassis Diameter 12" / 304.8 mm
Impedance 8 Ω
Power Handling 500 W (A.E.S.)
Peak Power (6dB Crest Factor) 2000 W (A.E.S.)
Usable Frequency Range (-6dB) 45 Hz - 4.5 kHz
Sensitivity (1W - 1m) Wideband 97.5 dB
Moving Mass (inc. Air Load) 43 grams
Minimum Impedance (Zmin) 6.84 Ω
Effective Piston Diameter 10.31" / 261.87 mm
Magnet Weight 80 oz
Magnetic Gap Depth 0.39" / 10 mm
Flux Density 1.1 Tesla
Coil Winding Height 0.70" / 18 mm
Voice Coil Diameter 3.0" / 76.2 mm
Speaker Type Bass Driver
Speaker Series The Professional Series
Program Power 1000 W (A.E.S.)
Sensitivity (1W / 1m) Working band
Thiele Small Parameters (TSPs)
FS 43 Hz
Re 5.6 Ω
QMS 3.04
QES 0.35
QTS 0.314
Vas 107 Litres
Vd 0.339 Litres
CMS 0.236 mm/N
BL 16 T/m
MMS 58 grams
Xmax 6 mm
Sd 565 cm2
Efficiency 2.34%
Le 1.6 mH
EBP 122.86 Hz
Materials of Construction
Coil Former Material Glass Fibre
Voice Coil Material CCAW - Inside / Outside Windings
Magnet Material Ferrite
Chassis Material Die-cast Aluminium
Cone Material Curvilinear Paper
Surround / Edge Termination Polyvinyl Damped Multi Roll. Poly Cotton
Dust Dome Material Solid Paper
Connectors Push-button Spring Terminals
Polarity Positive voltage at red terminal causes forward motion of cone
Mounting / Shipping Information
Overall Diameter 12.37" / 314 mm
Width Across Flats N/A
Flange Height 0.339" / 8.61 mm
Baffle Hole Diameter F/M 11.13" / 282.70 mm
Baffle Hole Diameter R/M N/A
Gasket Supplied Front & Rear
Outer Fixing Holes 8x ø 7.0 mm on 11.5" / 294 mm PCD
Inner Fixing Holes Not Applicable
Depth 5.7" / 145 mm
Weight 16.5 lb / 7.5 Kg
Recommended Enclosure Volume 1.23 - 2.64 cu ft / 35 - 75 Litres
Shipping Weight 17.63 lb / 8.0 Kg
Packing Carton Dimensions (W) 330 (D) 330 (H) 178 mm