97.5 dB Sensitivity (1W/1m).
Versatile unit intended for use as a bass/ mid woofer in medium sized vented enclosures.
Can also be used as a mid-range driver in small sealed designs.
Optimised cone pulp offers increased strength, durability and performance.
2.5-inch Copper voice coil.v
Please enquire about alternative impedances.
A.E.S. power handling test. Pink noise bandpass filtered at 12 dB per octave with cutoff frequencies of 50 Hz and 500 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.
Electro Acoustic Specifications
Nominal Chassis Diameter 12" / 304.8 mm
Impedance 4 /8 /16 Ω
Power Handling 300 W (A.E.S.)
Peak Power (6dB Crest Factor) 1200 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 56 oz
Magnetic Gap Depth 0.39" / 10 mm
Flux Density 1.1 Tesla
Coil Winding Height 0.70" / 18mm
Voice Coil Diameter 2.5" / 63.5 mm
Speaker Type Bass / Mid Range Driver
Speaker Series The Sovereign Series
Program Power 600 W (A.E.S.)
Sensitivity (1W / 1m) Working band
Thiele Small Parameters (TSPs)
FS 46 Hz
Re 5.75 Ω
QMS 5.2
QES 0.375
QTS 0.35
Vas 110 Litres
Vd 0.24 Litres
CMS 0.278 mm/N
BL 14 T/m
MMS 43 grams
Xmax 4.5 mm
Sd 530 cm2
Efficiency 2.75%
Le 1.64 mH
EBP 122.67 Hz
Materials of Construction
Coil Former Material Glass Fibre
Voice Coil Material Copper
Magnet Material Ferrite
Chassis Material Pressed Steel
Cone Material Curvilinear Paper
Surround / Edge Termination Polyvinyl Damped Multi Roll. Poly Cotton
Dust Dome Material Paper
Connectors Solder Tag
Polarity Positive voltage at red terminal causes forward motion of cone
Mounting / Shipping Information
Overall Diameter 12" / 304.8 mm
Width Across Flats N/A
Flange Height 0.27" / 6.9 mm
Baffle Hole Diameter F/M 11.25" / 285.75 mm
Baffle Hole Diameter R/M 11.25" / 285.75 mm
Gasket Supplied Front & Rear
Outer Fixing Holes 8x ø 7.0 mm on 11.75" / 298 mm PCD
Inner Fixing Holes Not Applicable
Depth 5.43" / 137.92 mm
Weight 11.02 lb / 5.0 Kg
Recommended Enclosure Volume 1.05 - 2.64 cu ft / 30 -75 Litres
Shipping Weight 12.89 lb / 5.85 Kg
Packing Carton Dimensions (W) 330 (D) 330 (H) 170 mm
