Hifonics BRW15D4 15" Dual 4-Ohm Car Subwoofer 5x7 Inch Speakers The speaker's specified frequency response

The speaker's specified frequency response is 89 Hz to 20 kHz

Its two auxiliary outputs can be used with professionally installed options such as trunk release

Gold-plated contacts and black-bodied straight TRS plugs provide the physical connection at each end

and equipment-rack runs without requiring an added extension cable

and the unit is intended for water- and spray-resistant marine use rather than submersion or high-pressure water exposure

Hifonics BRW15D4 15" Dual 4-Ohm Car Subwoofer 5x7 Inch Speakers The speaker's specified frequency responseThe Hifonics BRW15D4 is a 15 inch component car subwoofer designed to add dedicated low frequency output to an amplified vehicle audio system. It is intended for installations where factory or full range speakers alone cannot reproduce the depth and impact of bass heavy music. Because it is a component subwoofer, it requires a separate enclosure and external amplifier. This model uses dual 4 ohm voice coils, giving installers wiring flexibility when