DROK® 4.5" 4 Ohm HiFi Subwoofer Speakers Stereo Audio Loudspeaker, 40W DIY Loudspeaker with Good Bass for Desktop Computer Car Auto Motor Motorcycle Vehicle, Great Replacement for Sound System
Outer diameter: 120mm; Height: 60mm; Hole diameter: 111mm; Rated power: 40W; Effective frequency: 66Hz-2KHz. 87dB high sensitivity, loud voice, good and clear sound quality with very good bass, the width and depth of the sound stage they create is impressive. Applications: audiophile speakers, bookshelf speakers, 2.0 pairs of speakers, 2.1 subwoofer. Through-hole design, more quick to dissipate heat, has high efficiency. Please note it's a single speaker and not a pair, you may order 2pcs together if you need a pair of speakers.
Description： Loudspeaker outer diameter: 120mm Impedance: 4 ohms  Sensitivity: 87dB Effective frequency: 66Hz-2KHz QTS: 0.7 Equivalent volume: 8L Rated power: 40W Diagonal distance of screws: 124mm Loudspeaker height: 60mm Magnet diameter: 80mm Hole diameter: 111mm Package Includes: 1 x 4.5-inch Loudspeaker
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DROK
{"Is Discontinued By Manufacturer": "No", "Product Dimensions": "5.4 x 5.3 x 3.3 inches; 1.57 Pounds", "Item model number": "DR-US200286", "Date First Available": "July 15, 2016", "Manufacturer": "DROK"}