The item shown is a Precision Devices PD.152 15-inch loudspeaker, identified by the text on the dust cap and search results. This model is designed for bass guitar applications in single or multi-unit configurations, providing a "tight" voicing and fast response. Key Specifications Nominal Diameter: 38 cm (15”) Power Rating: 300 Watts AES (600 W Program) Nominal Impedance: 8 or 16 Ohms Sensitivity: 99 dB (1 W / 1 M) Frequency Range: Up to 3.5 kHz Resonance: 45 Hz Voice Coil: 76 mm (3.04”), Copper Recommended Enclosure: 80 to 200 litres
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