Precision Devices PD.123ER

Specifications:
 

• Nominal Diameter 30 cm (12”)
• Voice Coil Diameter 76 mm (3.04”)
• Nominal Impedance 8 or 16 Ohms
• Power Rating 400 Watts (AES)
• Sensitivity (1w / 1m) 97 dB
• Frequency Range 50Hz to 5 kHz
• Recommended Enclosure Volume 20-80 Litres
• Displacement Limit (peak-peak) 13 mm (0.52”)
• Resonance 55.87 Hz
• Voice Coil Copper
• Voice Coil Winding Depth 13 mm (0.52”)
• Magnet Gap Depth 9 mm (0.36”)
• Magnet Material Ceramic
• Magnet Weight 2.5 Kg (90 oz.)
• Flux Density 1.35 T
• Dust Dome Material Paper
• Suspension Material Fabric
• Cone / Surround Material Paper

Thiele Small Parameters:
 

• Fs 55.87 Hz
• Re 6.74 Ohms
• Qts 0.29
• Qms 13.03
• Qes 0.3
• Vas 54.54 Litres
• Mms 58.92 g
• Sd 530.93 cm²
• Cms 138 µm/N
• BL 21.73 Tm
• Xmax 2.5mm
• Vd 1.32 x10-4 m3
• Reference Efficiency 4.23 %

Mounting and Shipping Information

• Overall Diameter 330 mm
• Width Across Flats 320.5 mm
• Flange Height 10 mm
• Depth (Excl. Flange) 117 mm
• Magnet Diameter 200 mm
• Chassis Shoulder Diameter 282 mm
• Outer Bolt Circle 6 * M6 on 318mm PCD
• Inner Bolt Circle 8 * M6 on 293mm PCD
• Nett Weight 9.5 Kg / 20.94 lb.
• Shipping Weight 9.75 Kg / 21.49 lb.

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