A dual 18 inch passive subwoofer system is a type of sound reinforcement or audio equipment designed to reproduce low-frequency audio frequencies, typically used in live sound reinforcement, DJ setups, nightclubs, concert venues, and other environments where powerful bass is required.

Dual 18 inch Drivers: This type of subwoofer system features two 18-inch woofers (drivers) as its main components. These large drivers are responsible for producing the low-frequency bass sound.

Passive System: Passive  means that the subwoofer system does not have built-in amplification. It relies on an external power amplifier to provide the necessary electrical power to drive the subwoofers.

Impedance: The subwoofer's impedance rating is important for matching it with the correct amplifier. Impedance ratings for J-RX728S passive subwoofers are 4 ohms.

Crossover: In a sound system, subwoofers are often used in conjunction with other speakers like main speakers or satellites. A crossover network or processor may be used to direct the appropriate frequencies to the subwoofers.

Durability and Build Quality: Subwoofers designed for professional applications should have sturdy enclosures and durable components to withstand the rigors of regular use.

• Model: J-RX728S
• Driver: 2 x 18 inch
• RMS: 2400W
• Impedance: 4 ohms
• Voice Coil: 4 inch

Passive Dual Subwoofer
2 x 18 inch 2400W Dual Subwoofer System